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Author SHA1 Message Date
Linus Torvalds
dae0b74eb7 ARM: SoC non-urgent fixes for v4.6 
As usual, we queue up a few fixes that don't seem urgent enough to go in
 through -rc.
 
  - a number of randconfig warning fixes from Arnd
  - various small fixes for OMAP
  - one somewhat larger patch to restore the OMAP3 cpuidle
    tuning that was lost in a cleanup
  - a small regression fix for cns3xxx PCI
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-urgent fixes from Arnd Bergmann:
 "As usual, we queue up a few fixes that don't seem urgent enough to go
  in through -rc.

   - a number of randconfig warning fixes from Arnd
   - various small fixes for OMAP
   - one somewhat larger patch to restore the OMAP3 cpuidle tuning that
     was lost in a cleanup
   - a small regression fix for cns3xxx PCI"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
  CNS3xxx: Fix PCI cns3xxx_write_config()
  MAINTAINERS: unify email addrs for Kevin Hilman
  CNS3xxx: remove unused *_VIRT definitions
  ARM: OMAP2+: Fix hwmod clock for l4_ls
  soc: TI knav_qmss: fix dma_addr_t printing
  ARM: prima2: always enable reset controller
  ARM: socfpga: hide unused functions
  ARM: ux500: fix ureachable iounmap()
  ARM: ks8695: fix __initdata annotation
  ARM: mvebu: mark mvebu_hwcc_pci_nb as __maybe_unused
  ARM: mv78xx0: avoid unused function warning
  ARM: orion: only select I2C_BOARDINFO when using I2C
  ARM: OMAP2+: Fix out of range register access with syscon_config.max_register
  ARM: OMAP3: Add cpuidle parameters table for omap3430
  ARM: davinci: make I2C support optional
  ARM: davinci: DA8xx+DMx combined kernels need PATCH_PHYS_VIRT
  ARM: davinci: avoid unused mityomapl138_pn_info variable
  ARM: davinci: limit DT support to DA850
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ...
 2016-03-20 14:26:57 -07:00
Linus Torvalds
1e75a9f34a Merge git://www.linux-watchdog.org/linux-watchdog 
Pull watchdog updates from Wim Van Sebroeck:

 - new drivers for: NI 903x/913x watchdog driver, WinSystems EBC-C384
   watchdog timer and ARM SBSA watchdog driver

 - Support for NCT6102D devices

 - Improvements of the generic watchdog framework (improve restart
   handler, make set_timeout optional, introduce infrastructure
   triggered keepalives, ...

 - improvements on the pnx4008 watchdog driver

 - several smaller fixes and improvements

* git://www.linux-watchdog.org/linux-watchdog: (28 commits)
  watchdog: Ensure that wdd is not dereferenced if NULL
  watchdog: imx2: Convert to use infrastructure triggered keepalives
  watchdog: dw_wdt: Convert to use watchdog infrastructure
  watchdog: Add support for minimum time between heartbeats
  watchdog: Make stop function optional
  watchdog: Introduce WDOG_HW_RUNNING flag
  watchdog: Introduce hardware maximum heartbeat in watchdog core
  watchdog: Make set_timeout function optional
  arm: lpc32xx: remove restart handler
  arm: lpc32xx: phy3250 remove restart hook
  watchdog: pnx4008: restart: support "cmd" from userspace
  watchdog: pnx4008: add support for soft reset
  watchdog: pnx4008: add restart handler
  watchdog: pnx4008: update logging during power-on
  watchdog: tangox_wdt: test clock rate to avoid division by 0
  watchdog: atlas7_wdt: test clock rate to avoid division by 0
  watchdog: s3c2410_wdt: Add max and min timeout values
  Watchdog: introduce ARM SBSA watchdog driver
  Documentation: add sbsa-gwdt driver documentation
  watchdog: Add watchdog timer support for the WinSystems EBC-C384
  ...
 2016-03-19 19:35:51 -07:00
Linus Torvalds
de06dbfa78 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 
Pull ARM updates from Russell King:
 "Another mixture of changes this time around:

   - Split XIP linker file from main linker file to make it more
     maintainable, and various XIP fixes, and clean up a resulting
     macro.

   - Decompressor cleanups from Masahiro Yamada

   - Avoid printing an error for a missing L2 cache

   - Remove some duplicated symbols in System.map, and move
     vectors/stubs back into kernel VMA

   - Various low priority fixes from Arnd

   - Updates to allow bus match functions to return negative errno
     values, touching some drivers and the driver core.  Greg has acked
     these changes.

   - Virtualisation platform udpates form Jean-Philippe Brucker.

   - Security enhancements from Kees Cook

   - Rework some Kconfig dependencies and move PSCI idle management code
     out of arch/arm into drivers/firmware/psci.c

   - ARM DMA mapping updates, touching media, acked by Mauro.

   - Fix places in ARM code which should be using virt_to_idmap() so
     that Keystone2 can work.

   - Fix Marvell Tauros2 to work again with non-DT boots.

   - Provide a delay timer for ARM Orion platforms"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (45 commits)
  ARM: 8546/1: dma-mapping: refactor to fix coherent+cma+gfp=0
  ARM: 8547/1: dma-mapping: store buffer information
  ARM: 8543/1: decompressor: rename suffix_y to compress-y
  ARM: 8542/1: decompressor: merge piggy.*.S and simplify Makefile
  ARM: 8541/1: decompressor: drop redundant FORCE in Makefile
  ARM: 8540/1: decompressor: use clean-files instead of extra-y to clean files
  ARM: 8539/1: decompressor: drop more unneeded assignments to "targets"
  ARM: 8538/1: decompressor: drop unneeded assignments to "targets"
  ARM: 8532/1: uncompress: mark putc as inline
  ARM: 8531/1: turn init_new_context into an inline function
  ARM: 8530/1: remove VIRT_TO_BUS
  ARM: 8537/1: drop unused DEBUG_RODATA from XIP_KERNEL
  ARM: 8536/1: mm: hide __start_rodata_section_aligned for non-debug builds
  ARM: 8535/1: mm: DEBUG_RODATA makes no sense with XIP_KERNEL
  ARM: 8534/1: virt: fix hyp-stub build for pre-ARMv7 CPUs
  ARM: make the physical-relative calculation more obvious
  ARM: 8512/1: proc-v7.S: Adjust stack address when XIP_KERNEL
  ARM: 8411/1: Add default SPARSEMEM settings
  ARM: 8503/1: clk_register_clkdev: remove format string interface
  ARM: 8529/1: remove 'i' and 'zi' targets
  ...
 2016-03-19 16:31:54 -07:00
Linus Torvalds
31e182363b DeviceTree updates for 4.6: 
- New tool dtx_diff to diff DT files.
 
 - Sync kernel's dtc/libfdt to current dtc repo master.
 
 - Fix for reserved memory regions located in highmem.
 
 - Document standard unit suffixes for DT properties.
 
 - Various DT binding doc updates.
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Merge tag 'devicetree-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - new tool 'dtx_diff' to diff DT files

 - sync kernel's dtc/libfdt to current dtc repo master

 - fix for reserved memory regions located in highmem

 - document standard unit suffixes for DT properties

 - various DT binding doc updates

* tag 'devicetree-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Add vendor prefix for eGalax_eMPIA Technology Inc
  Input: ads7846: Add description how to use internal reference (ADS7846)
  ARM: realview: add EB syscon variants to bindings
  devicetree: bindings: ARM: Use "uV" for micro-volt
  serial: fsl-imx-uart: Fix typo in fsl,dte-mode description
  of: add 'const' for of_property_*_string*() parameter '*np'
  of/unittest: fix infinite loop in of_unittest_destroy_tracked_overlays()
  of: alloc anywhere from memblock if range not specified
  kbuild: Allow using host dtc instead of kernel's copy
  of: resolver: Add missing of_node_get and of_node_put
  of: Add United Radiant Technology Corporation vendor prefix
  dt/bindings: add documentation on standard property unit suffixes
  scripts/dtc: Update to upstream commit b06e55c88b9b
  ARM: boot: Add an implementation of strnlen for libfdt
  scripts/dtc: dtx_diff - add info to error message
  dtc: create tool to diff device trees
 2016-03-19 15:15:07 -07:00
Linus Torvalds
1200b6809d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:
 "Highlights:

   1) Support more Realtek wireless chips, from Jes Sorenson.

   2) New BPF types for per-cpu hash and arrap maps, from Alexei
      Starovoitov.

   3) Make several TCP sysctls per-namespace, from Nikolay Borisov.

   4) Allow the use of SO_REUSEPORT in order to do per-thread processing
   of incoming TCP/UDP connections.  The muxing can be done using a
   BPF program which hashes the incoming packet.  From Craig Gallek.

   5) Add a multiplexer for TCP streams, to provide a messaged based
      interface.  BPF programs can be used to determine the message
      boundaries.  From Tom Herbert.

   6) Add 802.1AE MACSEC support, from Sabrina Dubroca.

   7) Avoid factorial complexity when taking down an inetdev interface
      with lots of configured addresses.  We were doing things like
      traversing the entire address less for each address removed, and
      flushing the entire netfilter conntrack table for every address as
      well.

   8) Add and use SKB bulk free infrastructure, from Jesper Brouer.

   9) Allow offloading u32 classifiers to hardware, and implement for
      ixgbe, from John Fastabend.

  10) Allow configuring IRQ coalescing parameters on a per-queue basis,
      from Kan Liang.

  11) Extend ethtool so that larger link mode masks can be supported.
      From David Decotigny.

  12) Introduce devlink, which can be used to configure port link types
      (ethernet vs Infiniband, etc.), port splitting, and switch device
      level attributes as a whole.  From Jiri Pirko.

  13) Hardware offload support for flower classifiers, from Amir Vadai.

  14) Add "Local Checksum Offload".  Basically, for a tunneled packet
      the checksum of the outer header is 'constant' (because with the
      checksum field filled into the inner protocol header, the payload
      of the outer frame checksums to 'zero'), and we can take advantage
      of that in various ways.  From Edward Cree"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits)
  bonding: fix bond_get_stats()
  net: bcmgenet: fix dma api length mismatch
  net/mlx4_core: Fix backward compatibility on VFs
  phy: mdio-thunder: Fix some Kconfig typos
  lan78xx: add ndo_get_stats64
  lan78xx: handle statistics counter rollover
  RDS: TCP: Remove unused constant
  RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket
  net: smc911x: convert pxa dma to dmaengine
  team: remove duplicate set of flag IFF_MULTICAST
  bonding: remove duplicate set of flag IFF_MULTICAST
  net: fix a comment typo
  ethernet: micrel: fix some error codes
  ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it
  bpf, dst: add and use dst_tclassid helper
  bpf: make skb->tc_classid also readable
  net: mvneta: bm: clarify dependencies
  cls_bpf: reset class and reuse major in da
  ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c
  ldmvsw: Add ldmvsw.c driver code
  ...
 2016-03-19 10:05:34 -07:00
Linus Torvalds
814a2bf957 Merge branch 'akpm' (patches from Andrew) 
Merge second patch-bomb from Andrew Morton:

 - a couple of hotfixes

 - the rest of MM

 - a new timer slack control in procfs

 - a couple of procfs fixes

 - a few misc things

 - some printk tweaks

 - lib/ updates, notably to radix-tree.

 - add my and Nick Piggin's old userspace radix-tree test harness to
   tools/testing/radix-tree/.  Matthew said it was a godsend during the
   radix-tree work he did.

 - a few code-size improvements, switching to __always_inline where gcc
   screwed up.

 - partially implement character sets in sscanf

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
  sscanf: implement basic character sets
  lib/bug.c: use common WARN helper
  param: convert some "on"/"off" users to strtobool
  lib: add "on"/"off" support to kstrtobool
  lib: update single-char callers of strtobool()
  lib: move strtobool() to kstrtobool()
  include/linux/unaligned: force inlining of byteswap operations
  include/uapi/linux/byteorder, swab: force inlining of some byteswap operations
  include/asm-generic/atomic-long.h: force inlining of some atomic_long operations
  usb: common: convert to use match_string() helper
  ide: hpt366: convert to use match_string() helper
  ata: hpt366: convert to use match_string() helper
  power: ab8500: convert to use match_string() helper
  power: charger_manager: convert to use match_string() helper
  drm/edid: convert to use match_string() helper
  pinctrl: convert to use match_string() helper
  device property: convert to use match_string() helper
  lib/string: introduce match_string() helper
  radix-tree tests: add test for radix_tree_iter_next
  radix-tree tests: add regression3 test
  ...
 2016-03-18 19:26:54 -07:00
Masahiro Yamada
413b321b32 ARM: dts: uniphier: add pinmux node for I2C ch4 
This will be needed for UniPhier PH1-LD11 and PH1-LD20 SoCs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
 2016-03-18 17:42:29 +01:00
Masahiro Yamada
090f41f406 ARM: dts: uniphier: add @{address} to EEPROM node 
Just for consistent coding style.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:40:50 +01:00
Masahiro Yamada
4f8b8c60ec ARM: dts: uniphier: add PH1-Pro4 Sanji board support 
Initial commit for PH1-Pro4 Sanji board support.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:39:27 +01:00
Masahiro Yamada
d2522f9731 ARM: dts: uniphier: add PH1-Pro4 Ace board support 
Initial commit for PH1-Pro4 Ace board support.

Note:
There are two variants for the amount of DDR memory; 1GB or 2GB.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:39:21 +01:00
Masahiro Yamada
4755723992 ARM: dts: uniphier: enable I2C channel 2 of ProXstream2 Gentil board 
This is used for on-board inter-connection.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:39:16 +01:00
Masahiro Yamada
3bdf9e4271 ARM: dts: uniphier: add EEPROM node for ProXstream2 Gentil board 
This board has an EEPROM (STMicroelectronics M24C64-WMN6TP) connected
to the I2C channel 0 of the SoC.  Its slave address is 0x54.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:39:12 +01:00
Masahiro Yamada
61f838c7fa ARM: dts: uniphier: add reference clock nodes 
Add master clock nodes generated by crystal oscillators.

  PH1-sLD3, PH1-LD4: 24.576 MHz
  PH1-Pro4, ProXstream2: 25.000 MHz
  PH1-Pro5: 20.000 MHz

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:39:04 +01:00
Masahiro Yamada
14bae133b8 ARM: dts: uniphier: rework UniPhier System Bus nodes 
During the review process of the UniPhier System Bus driver
(drivers/bus/uniphier.c), the current binding of the System Bus
Controller turned out to be no good.  In order to make the driver
really usable, we have to switch over to the new binding defined by
Documentation/devicetree/bindings/bus/uniphier-system-bus.txt.
The old binding will be still supported for a while to keep the
backward compatibility.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:37:52 +01:00
Masahiro Yamada
5c5154e429 ARM: dts: uniphier: factor out ranges property of support card 
This property is used in common by several boards.  Move it to the
common place (uniphier-support-card.dtsi).  If necessary, each board
can still override the property.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:37:45 +01:00
Masahiro Yamada
307d40c56b ARM: uniphier: rework SMP code to support new System Bus binding 
During the review process of the UniPhier System Bus driver
(drivers/bus/uniphier.c), the current binding of the System Bus
Controller turned out to be no good.  In order to use the driver,
some nodes in the device trees must be tweaked.  It would also have
impacts on the SMP code because the SMP related registers are
located in the System Bus Controller block.  This commit reworks
the smp_operations to support the new binding, but still supports
the old binding, too.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:36:37 +01:00
Masahiro Yamada
9eca796ee3 ARM: uniphier: add missing of_node_put() 
This node pointer is allocated by of_find_compatible_node() in this
function.  It should be put before exitting this function.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-18 17:36:26 +01:00
Linus Torvalds
10fdfee7f7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 
Pull input updates from Dmitry Torokhov:
 "The most notable item is addition of support for Synaptics RMI4
  protocol which is native protocol for all current Synaptics devices
  (touchscreens, touchpads).  In later releases we'll switch devices
  using HID and PS/2 protocol emulation to RMI4.

  You will also get:
   - BYD PS/2 touchpad protocol support for psmouse
   - MELFAS MIP4 Touchscreen driver
   - rotary encoder was moved away from legacy platform data and to
     generic device properties API, devm_* API, and can now handle
     encoders using more than 2 GPIOs
   - Cypress touchpad driver was switched to devm_* API and device
     properties
   - other assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props
  Input: synaptics-rmi4 - using logical instead of bitwise AND
  Input: powermate - fix oops with malicious USB descriptors
  Input: snvs_pwrkey - fix returned value check of syscon_regmap_lookup_by_phandle()
  MAINTAINERS: add devicetree bindings to Input Drivers section
  Input: synaptics-rmi4 - add device tree support to the SPI transport driver
  Input: synaptics-rmi4 - add SPI transport driver
  Input: synaptics-rmi4 - add support for F30
  Input: synaptics-rmi4 - add support for F12
  Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
  Input: synaptics-rmi4 - add support for 2D sensors and F11
  Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
  Input: synaptics-rmi4 - add I2C transport driver
  Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
  Input: ad7879 - add device tree support
  Input: ad7879 - fix default x/y axis assignment
  Input: ad7879 - move header to platform_data directory
  Input: ts4800 - add hardware dependency
  Input: cyapa - fix for losing events during device power transitions
  Input: sh_keysc - remove dependency on SUPERH
  ...
 2016-03-17 21:51:52 -07:00
Linus Torvalds
1a46712aa9 This is the bulk of GPIO changes for kernel v4.6: 
Core changes:
 
 - The gpio_chip is now a *real device*. Until now the gpio chips
   were just piggybacking the parent device or (gasp) floating in
   space outside of the device model. We now finally make GPIO chips
   devices. The gpio_chip will create a gpio_device which contains
   a struct device, and this gpio_device struct is kept private.
   Anything that needs to be kept private from the rest of the kernel
   will gradually be moved over to the gpio_device.
 
 - As a result of making the gpio_device a real device, we have added
   resource management, so devm_gpiochip_add_data() will cut down on
   overhead and reduce code lines. A huge slew of patches convert
   almost all drivers in the subsystem to use this.
 
 - Building on making the GPIO a real device, we add the first step
   of a new userspace ABI: the GPIO character device. We take small
   steps here, so we first add a pure *information* ABI and the tool
   "lsgpio" that will list all GPIO devices on the system and all
   lines on these devices. We can now discover GPIOs properly from
   userspace. We still have not come up with a way to actually *use*
   GPIOs from userspace.
 
 - To encourage people to use the character device for the future,
   we have it always-enabled when using GPIO. The old sysfs ABI is
   still opt-in (and can be used in parallel), but is marked as
   deprecated. We will keep it around for the foreseeable future,
   but it will not be extended to cover ever more use cases.
 
 Cleanup:
 
 - Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
   includes. This dates back to when GPIO was an opt-in feature and
   no shared library even existed: just a header file with proper
   prototypes was provided and all semantics were up to the arch to
   implement. These patches make the GPIO chip even more a proper
   device and cleans out leftovers of the old in-kernel API here
   and there. Still some cruft is left but it's very little now.
 
 - There is still some clamping of return values for .get() going
   on, but we now return sane values in the vast majority of drivers
   and the errorpath is sanitized. Some patches for powerpc, blackfin
   and unicore still drop in.
 
 - We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
   implementations to use gpiochip_add_data() and cut down on code
   lines.
 
 - MPC8xxx is converted to use the generic GPIO helpers.
 
 - ATH79 is converted to use the generic GPIO helpers.
 
 New drivers:
 
 - WinSystems WS16C48
 
 - Acces 104-DIO-48E
 
 - F81866 (a F7188x variant)
 
 - Qoric (a MPC8xxx variant)
 
 - TS-4800
 
 - SPI serializers (pisosr): simple 74xx shift registers connected
   to SPI to obtain a dirt-cheap output-only GPIO expander.
 
 - Texas Instruments TPIC2810
 
 - Texas Instruments TPS65218
 
 - Texas Instruments TPS65912
 
 - X-Gene (ARM64) standby GPIO controller
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Merge tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for kernel v4.6.  There is quite a
  lot of interesting stuff going on.

  The patches to other subsystems and arch-wide are ACKed as far as
  possible, though I consider things like per-arch <asm/gpio.h> as
  essentially a part of the GPIO subsystem so it should not be needed.

  Core changes:

   - The gpio_chip is now a *real device*.  Until now the gpio chips
     were just piggybacking the parent device or (gasp) floating in
     space outside of the device model.

     We now finally make GPIO chips devices.  The gpio_chip will create
     a gpio_device which contains a struct device, and this gpio_device
     struct is kept private.  Anything that needs to be kept private
     from the rest of the kernel will gradually be moved over to the
     gpio_device.

   - As a result of making the gpio_device a real device, we have added
     resource management, so devm_gpiochip_add_data() will cut down on
     overhead and reduce code lines.  A huge slew of patches convert
     almost all drivers in the subsystem to use this.

   - Building on making the GPIO a real device, we add the first step of
     a new userspace ABI: the GPIO character device.  We take small
     steps here, so we first add a pure *information* ABI and the tool
     "lsgpio" that will list all GPIO devices on the system and all
     lines on these devices.

     We can now discover GPIOs properly from userspace.  We still have
     not come up with a way to actually *use* GPIOs from userspace.

   - To encourage people to use the character device for the future, we
     have it always-enabled when using GPIO.  The old sysfs ABI is still
     opt-in (and can be used in parallel), but is marked as deprecated.

     We will keep it around for the foreseeable future, but it will not
     be extended to cover ever more use cases.

  Cleanup:

   - Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
     includes.

     This dates back to when GPIO was an opt-in feature and no shared
     library even existed: just a header file with proper prototypes was
     provided and all semantics were up to the arch to implement.  These
     patches make the GPIO chip even more a proper device and cleans out
     leftovers of the old in-kernel API here and there.

     Still some cruft is left but it's very little now.

   - There is still some clamping of return values for .get() going on,
     but we now return sane values in the vast majority of drivers and
     the errorpath is sanitized.  Some patches for powerpc, blackfin and
     unicore still drop in.

   - We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
     implementations to use gpiochip_add_data() and cut down on code
     lines.

   - MPC8xxx is converted to use the generic GPIO helpers.

   - ATH79 is converted to use the generic GPIO helpers.

  New drivers:

   - WinSystems WS16C48

   - Acces 104-DIO-48E

   - F81866 (a F7188x variant)

   - Qoric (a MPC8xxx variant)

   - TS-4800

   - SPI serializers (pisosr): simple 74xx shift registers connected to
     SPI to obtain a dirt-cheap output-only GPIO expander.

   - Texas Instruments TPIC2810

   - Texas Instruments TPS65218

   - Texas Instruments TPS65912

   - X-Gene (ARM64) standby GPIO controller"

* tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits)
  Revert "Share upstreaming patches"
  gpio: mcp23s08: Fix clearing of interrupt.
  gpiolib: Fix comment referring to gpio_*() in gpiod_*()
  gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit
  gpio: xgene: Fix kconfig for standby GIPO contoller
  gpio: Add generic serializer DT binding
  gpio: uapi: use 0xB4 as ioctl() major
  gpio: tps65912: fix bad merge
  Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"
  gpio: omap: drop dev field from gpio_bank structure
  gpio: mpc8xxx: Slightly update the code for better readability
  gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip
  gpio: mpc8xxx: Fixup setting gpio direction output
  gpio: mcp23s08: Add support for mcp23s18
  dt-bindings: gpio: altera: Fix altr,interrupt-type property
  gpio: add driver for MEN 16Z127 GPIO controller
  gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free
  gpio: timberdale: Switch to devm_ioremap_resource()
  gpio: ts4800: Add IMX51 dependency
  gpiolib: rewrite gpiodev_add_to_list
  ...
 2016-03-17 21:05:32 -07:00
Linus Torvalds
588ab3f9af arm64 updates for 4.6: 
- Initial page table creation reworked to avoid breaking large block
   mappings (huge pages) into smaller ones. The ARM architecture requires
   break-before-make in such cases to avoid TLB conflicts but that's not
   always possible on live page tables
 
 - Kernel virtual memory layout: the kernel image is no longer linked to
   the bottom of the linear mapping (PAGE_OFFSET) but at the bottom of
   the vmalloc space, allowing the kernel to be loaded (nearly) anywhere
   in physical RAM
 
 - Kernel ASLR: position independent kernel Image and modules being
   randomly mapped in the vmalloc space with the randomness is provided
   by UEFI (efi_get_random_bytes() patches merged via the arm64 tree,
   acked by Matt Fleming)
 
 - Implement relative exception tables for arm64, required by KASLR
   (initial code for ARCH_HAS_RELATIVE_EXTABLE added to lib/extable.c but
   actual x86 conversion to deferred to 4.7 because of the merge
   dependencies)
 
 - Support for the User Access Override feature of ARMv8.2: this allows
   uaccess functions (get_user etc.) to be implemented using LDTR/STTR
   instructions. Such instructions, when run by the kernel, perform
   unprivileged accesses adding an extra level of protection. The
   set_fs() macro is used to "upgrade" such instruction to privileged
   accesses via the UAO bit
 
 - Half-precision floating point support (part of ARMv8.2)
 
 - Optimisations for CPUs with or without a hardware prefetcher (using
   run-time code patching)
 
 - copy_page performance improvement to deal with 128 bytes at a time
 
 - Sanity checks on the CPU capabilities (via CPUID) to prevent
   incompatible secondary CPUs from being brought up (e.g. weird
   big.LITTLE configurations)
 
 - valid_user_regs() reworked for better sanity check of the sigcontext
   information (restored pstate information)
 
 - ACPI parking protocol implementation
 
 - CONFIG_DEBUG_RODATA enabled by default
 
 - VDSO code marked as read-only
 
 - DEBUG_PAGEALLOC support
 
 - ARCH_HAS_UBSAN_SANITIZE_ALL enabled
 
 - Erratum workaround Cavium ThunderX SoC
 
 - set_pte_at() fix for PROT_NONE mappings
 
 - Code clean-ups
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:
 "Here are the main arm64 updates for 4.6.  There are some relatively
  intrusive changes to support KASLR, the reworking of the kernel
  virtual memory layout and initial page table creation.

  Summary:

   - Initial page table creation reworked to avoid breaking large block
     mappings (huge pages) into smaller ones.  The ARM architecture
     requires break-before-make in such cases to avoid TLB conflicts but
     that's not always possible on live page tables

   - Kernel virtual memory layout: the kernel image is no longer linked
     to the bottom of the linear mapping (PAGE_OFFSET) but at the bottom
     of the vmalloc space, allowing the kernel to be loaded (nearly)
     anywhere in physical RAM

   - Kernel ASLR: position independent kernel Image and modules being
     randomly mapped in the vmalloc space with the randomness is
     provided by UEFI (efi_get_random_bytes() patches merged via the
     arm64 tree, acked by Matt Fleming)

   - Implement relative exception tables for arm64, required by KASLR
     (initial code for ARCH_HAS_RELATIVE_EXTABLE added to lib/extable.c
     but actual x86 conversion to deferred to 4.7 because of the merge
     dependencies)

   - Support for the User Access Override feature of ARMv8.2: this
     allows uaccess functions (get_user etc.) to be implemented using
     LDTR/STTR instructions.  Such instructions, when run by the kernel,
     perform unprivileged accesses adding an extra level of protection.
     The set_fs() macro is used to "upgrade" such instruction to
     privileged accesses via the UAO bit

   - Half-precision floating point support (part of ARMv8.2)

   - Optimisations for CPUs with or without a hardware prefetcher (using
     run-time code patching)

   - copy_page performance improvement to deal with 128 bytes at a time

   - Sanity checks on the CPU capabilities (via CPUID) to prevent
     incompatible secondary CPUs from being brought up (e.g.  weird
     big.LITTLE configurations)

   - valid_user_regs() reworked for better sanity check of the
     sigcontext information (restored pstate information)

   - ACPI parking protocol implementation

   - CONFIG_DEBUG_RODATA enabled by default

   - VDSO code marked as read-only

   - DEBUG_PAGEALLOC support

   - ARCH_HAS_UBSAN_SANITIZE_ALL enabled

   - Erratum workaround Cavium ThunderX SoC

   - set_pte_at() fix for PROT_NONE mappings

   - Code clean-ups"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (99 commits)
  arm64: kasan: Fix zero shadow mapping overriding kernel image shadow
  arm64: kasan: Use actual memory node when populating the kernel image shadow
  arm64: Update PTE_RDONLY in set_pte_at() for PROT_NONE permission
  arm64: Fix misspellings in comments.
  arm64: efi: add missing frame pointer assignment
  arm64: make mrs_s prefixing implicit in read_cpuid
  arm64: enable CONFIG_DEBUG_RODATA by default
  arm64: Rework valid_user_regs
  arm64: mm: check at build time that PAGE_OFFSET divides the VA space evenly
  arm64: KVM: Move kvm_call_hyp back to its original localtion
  arm64: mm: treat memstart_addr as a signed quantity
  arm64: mm: list kernel sections in order
  arm64: lse: deal with clobbered IP registers after branch via PLT
  arm64: mm: dump: Use VA_START directly instead of private LOWEST_ADDR
  arm64: kconfig: add submenu for 8.2 architectural features
  arm64: kernel: acpi: fix ioremap in ACPI parking protocol cpu_postboot
  arm64: Add support for Half precision floating point
  arm64: Remove fixmap include fragility
  arm64: Add workaround for Cavium erratum 27456
  arm64: mm: Mark .rodata as RO
  ...
 2016-03-17 20:03:47 -07:00
Jan Kara
0e8fb9312f mm: remove VM_FAULT_MINOR 
The define has a comment from Nick Piggin from 2007:

 /* For backwards compat. Remove me quickly. */

I guess 9 years should not be too hurried sense of 'quickly' even for
kernel measures.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2016-03-17 15:09:34 -07:00
Kirill A. Shutemov
3ed3a4f0dd mm: cleanup *pte_alloc* interfaces 
There are few things about *pte_alloc*() helpers worth cleaning up:

 - 'vma' argument is unused, let's drop it;

 - most __pte_alloc() callers do speculative check for pmd_none(),
   before taking ptl: let's introduce pte_alloc() macro which does
   the check.

   The only direct user of __pte_alloc left is userfaultfd, which has
   different expectation about atomicity wrt pmd.

 - pte_alloc_map() and pte_alloc_map_lock() are redefined using
   pte_alloc().

[sudeep.holla@arm.com: fix build for arm64 hugetlbpage]
[sfr@canb.auug.org.au: fix arch/arm/mm/mmu.c some more]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2016-03-17 15:09:34 -07:00
Linus Torvalds
48d10bda1f USB patches for 4.6-rc1 
Here is the big USB patchset for 4.6-rc1.
 
 The normal mess is here, gadget and xhci fixes and updates, and lots of
 other driver updates and cleanups as well.  Full details are in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB patchset for 4.6-rc1.

  The normal mess is here, gadget and xhci fixes and updates, and lots
  of other driver updates and cleanups as well.  Full details are in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (266 commits)
  USB: core: let USB device know device node
  usb: devio: Add ioctl to disallow detaching kernel USB drivers.
  usb: gadget: f_acm: Fix configfs attr name
  usb: udc: lpc32xx: remove USB PLL and USB OTG clock management
  usb: udc: lpc32xx: remove direct access to clock controller registers
  usb: udc: lpc32xx: switch to clock prepare/unprepare model
  usb: renesas_usbhs: gadget: fix giveback status code in usbhsg_pipe_disable()
  usb: gadget: renesas_usb3: Use ARCH_RENESAS
  usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()
  usb: dwc2: Add support for Lantiq ARX and XRX SoCs
  usb: phy: generic: Handle late registration of gadget
  usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
  usb: musb: core: added missing const qualifier to musb_hdrc_platform_data::config
  usb: dwc2: Move host-specific core functions into hcd.c
  usb: dwc2: Move register save and restore functions
  usb: dwc2: Use kmem_cache_free()
  usb: dwc2: host: If using uframe scheduler, end splits better
  usb: dwc2: host: Totally redo the microframe scheduler
  usb: dwc2: host: Properly set even/odd frame
  usb: dwc2: host: Add dwc2_hcd_get_future_frame_number() call
  ...
 2016-03-17 14:24:26 -07:00
Linus Torvalds
96b9b1c956 TTY/Serial patches for 4.6-rc1 
Here's the big tty/serial driver pull request for 4.6-rc1.
 
 Lots of changes in here, Peter has been on a tear again, with lots of
 refactoring and bugs fixes, many thanks to the great work he has been
 doing.  Lots of driver updates and fixes as well, full details in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here's the big tty/serial driver pull request for 4.6-rc1.

  Lots of changes in here, Peter has been on a tear again, with lots of
  refactoring and bugs fixes, many thanks to the great work he has been
  doing.  Lots of driver updates and fixes as well, full details in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (220 commits)
  serial: 8250: describe CONFIG_SERIAL_8250_RSA
  serial: samsung: optimize UART rx fifo access routine
  serial: pl011: add mark/space parity support
  serial: sa1100: make sa1100_register_uart_fns a function
  tty: serial: 8250: add MOXA Smartio MUE boards support
  serial: 8250: convert drivers to use up_to_u8250p()
  serial: 8250/mediatek: fix building with SERIAL_8250=m
  serial: 8250/ingenic: fix building with SERIAL_8250=m
  serial: 8250/uniphier: fix modular build
  Revert "drivers/tty/serial: make 8250/8250_ingenic.c explicitly non-modular"
  Revert "drivers/tty/serial: make 8250/8250_mtk.c explicitly non-modular"
  serial: mvebu-uart: initial support for Armada-3700 serial port
  serial: mctrl_gpio: Add missing module license
  serial: ifx6x60: avoid uninitialized variable use
  tty/serial: at91: fix bad offset for UART timeout register
  tty/serial: at91: restore dynamic driver binding
  serial: 8250: Add hardware dependency to RT288X option
  TTY, devpts: document pty count limiting
  tty: goldfish: support platform_device with id -1
  drivers: tty: goldfish: Add device tree bindings
  ...
 2016-03-17 13:53:25 -07:00
Linus Torvalds
8eee93e257 Char/Misc patches for 4.6-rc1 
Here is the big char/misc driver update for 4.6-rc1.
 
 The majority of the patches here is hwtracing and some new mic drivers,
 but there's a lot of other driver updates as well.  Full details in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here is the big char/misc driver update for 4.6-rc1.

  The majority of the patches here is hwtracing and some new mic
  drivers, but there's a lot of other driver updates as well.  Full
  details in the shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (238 commits)
  goldfish: Fix build error of missing ioremap on UM
  nvmem: mediatek: Fix later provider initialization
  nvmem: imx-ocotp: Fix return value of imx_ocotp_read
  nvmem: Fix dependencies for !HAS_IOMEM archs
  char: genrtc: replace blacklist with whitelist
  drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular
  drivers: char: mem: fix IS_ERROR_VALUE usage
  char: xillybus: Fix internal data structure initialization
  pch_phub: return -ENODATA if ROM can't be mapped
  Drivers: hv: vmbus: Support kexec on ws2012 r2 and above
  Drivers: hv: vmbus: Support handling messages on multiple CPUs
  Drivers: hv: utils: Remove util transport handler from list if registration fails
  Drivers: hv: util: Pass the channel information during the init call
  Drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbus_wait_for_unload()
  Drivers: hv: vmbus: remove code duplication in message handling
  Drivers: hv: vmbus: avoid wait_for_completion() on crash
  Drivers: hv: vmbus: don't loose HVMSG_TIMER_EXPIRED messages
  misc: at24: replace memory_accessor with nvmem_device_read
  eeprom: 93xx46: extend driver to plug into the NVMEM framework
  eeprom: at25: extend driver to plug into the NVMEM framework
  ...
 2016-03-17 13:47:50 -07:00
Linus Torvalds
9cc984e4bc power supply and reset changes for the v4.6 series 
* add types for USB Type C and PD chargers
  * add act8945a charger driver
  * add ACPI/DT bindings for goldfish-battery
  * add support for versatile reset controller
  * misc. fixes
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Merge tag 'for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset changes from Sebastian Reichel:
 - add types for USB Type C and PD chargers
 - add act8945a charger driver
 - add ACPI/DT bindings for goldfish-battery
 - add support for versatile reset controller
 - misc fixes

* tag 'for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (24 commits)
  power: pm2301-charger: use __maybe_unused to hide pm functions
  power: ipaq-micro-battery: use __maybe_unused to hide pm functions
  power_supply: 88pm860x_charger: do not pass NULL to power_supply_put
  jz4740-battery: Correct voltage change check
  power_supply: lp8788-charger: initialize boolean 'found'
  goldfish: Enable ACPI-based enumeration for goldfish battery
  power: goldfish_battery: add devicetree bindings
  power: act8945a: add charger driver for ACT8945A
  power: add documentation for ACT8945A's charger DT bindings
  ARM: dts: n900: Rename isp1704 to isp1707 to match correct name
  power_supply: bq27xxx_battery: Add of modalias and match table when CONFIG_OF is enabled
  power_supply: bq2415x_charger: Add of modalias and match table when CONFIG_OF is enabled
  power_supply: bq2415x_charger: Do not add acpi modalias when CONFIG_ACPI is not enabled
  power_supply: isp1704_charger: Add compatible of match for nxp,isp1707
  power_supply: isp1704_charger: Error messages when probe fail
  power_supply: Add types for USB Type C and PD chargers
  power: bq24735-charger: add 'ti,external-control' option
  power: bq24735-charger: document 'ti,external-control' option
  power: bq24735-charger: fix failed i2c with ac-detect
  power: reset: Fix dependencies for !HAS_IOMEM archs
  ...
 2016-03-17 12:50:55 -07:00
Linus Torvalds
bb7aeae3d6 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 
Pull security layer updates from James Morris:
 "There are a bunch of fixes to the TPM, IMA, and Keys code, with minor
  fixes scattered across the subsystem.

  IMA now requires signed policy, and that policy is also now measured
  and appraised"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (67 commits)
  X.509: Make algo identifiers text instead of enum
  akcipher: Move the RSA DER encoding check to the crypto layer
  crypto: Add hash param to pkcs1pad
  sign-file: fix build with CMS support disabled
  MAINTAINERS: update tpmdd urls
  MODSIGN: linux/string.h should be #included to get memcpy()
  certs: Fix misaligned data in extra certificate list
  X.509: Handle midnight alternative notation in GeneralizedTime
  X.509: Support leap seconds
  Handle ISO 8601 leap seconds and encodings of midnight in mktime64()
  X.509: Fix leap year handling again
  PKCS#7: fix unitialized boolean 'want'
  firmware: change kernel read fail to dev_dbg()
  KEYS: Use the symbol value for list size, updated by scripts/insert-sys-cert
  KEYS: Reserve an extra certificate symbol for inserting without recompiling
  modsign: hide openssl output in silent builds
  tpm_tis: fix build warning with tpm_tis_resume
  ima: require signed IMA policy
  ima: measure and appraise the IMA policy itself
  ima: load policy using path
  ...
 2016-03-17 11:33:45 -07:00
Linus Torvalds
70477371dc Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 
Pull crypto update from Herbert Xu:
 "Here is the crypto update for 4.6:

  API:
   - Convert remaining crypto_hash users to shash or ahash, also convert
     blkcipher/ablkcipher users to skcipher.
   - Remove crypto_hash interface.
   - Remove crypto_pcomp interface.
   - Add crypto engine for async cipher drivers.
   - Add akcipher documentation.
   - Add skcipher documentation.

  Algorithms:
   - Rename crypto/crc32 to avoid name clash with lib/crc32.
   - Fix bug in keywrap where we zero the wrong pointer.

  Drivers:
   - Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver.
   - Add PIC32 hwrng driver.
   - Support BCM6368 in bcm63xx hwrng driver.
   - Pack structs for 32-bit compat users in qat.
   - Use crypto engine in omap-aes.
   - Add support for sama5d2x SoCs in atmel-sha.
   - Make atmel-sha available again.
   - Make sahara hashing available again.
   - Make ccp hashing available again.
   - Make sha1-mb available again.
   - Add support for multiple devices in ccp.
   - Improve DMA performance in caam.
   - Add hashing support to rockchip"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits)
  crypto: qat - remove redundant arbiter configuration
  crypto: ux500 - fix checks of error code returned by devm_ioremap_resource()
  crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
  crypto: qat - Change the definition of icp_qat_uof_regtype
  hwrng: exynos - use __maybe_unused to hide pm functions
  crypto: ccp - Add abstraction for device-specific calls
  crypto: ccp - CCP versioning support
  crypto: ccp - Support for multiple CCPs
  crypto: ccp - Remove check for x86 family and model
  crypto: ccp - memset request context to zero during import
  lib/mpi: use "static inline" instead of "extern inline"
  lib/mpi: avoid assembler warning
  hwrng: bcm63xx - fix non device tree compatibility
  crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode.
  crypto: qat - The AE id should be less than the maximal AE number
  lib/mpi: Endianness fix
  crypto: rockchip - add hash support for crypto engine in rk3288
  crypto: xts - fix compile errors
  crypto: doc - add skcipher API documentation
  crypto: doc - update AEAD AD handling
  ...
 2016-03-17 11:22:54 -07:00
Xing Zheng
af671e7bd9 ARM: dts: rockchip: add to support emac for rk3036 SoCs 
This patch adds the emac device node for rk3036 SoCs.
We need to let mac clock under the DPLL which is able to provide
the accurate 50MHz what mac_ref need, since that will cause some
unstable things if the cpufreq is working.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: linux-rockchip@lists.infradead.org
Cc: Xing Zheng <zhengxing@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-16 19:28:02 -04:00
Linus Torvalds
63e30271b0 PCI changes for the v4.6 merge window: 
Enumeration
     Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas)
     Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas
 
   Resource management
     Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
     Don't assign or reassign immutable resources (Bjorn Helgaas)
     Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas)
     Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas)
     Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas)
     ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas)
     ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
     MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
     Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas)
     Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas)
     rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
     designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
 
   Virtualization
     Wait for up to 1000ms after FLR reset (Alex Williamson)
     Support SR-IOV on any function type (Kelly Zytaruk)
     Add ACS quirk for all Cavium devices (Manish Jaggi)
 
   AER
     Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas)
     Restore pci_ops pointer while calling original pci_ops (David Daney)
     Fix aer_inject error codes (Jean Delvare)
     Use dev_warn() in aer_inject (Jean Delvare)
     Log actual error causes in aer_inject (Jean Delvare)
     Log aer_inject error injections (Jean Delvare)
 
   VPD
     Prevent VPD access for buggy devices (Babu Moger)
     Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas)
     Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas)
     Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas)
     Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas)
     Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas)
     Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas)
     Update VPD definitions (Hannes Reinecke)
     Allow access to VPD attributes with size 0 (Hannes Reinecke)
     Determine actual VPD size on first access (Hannes Reinecke)
 
   Generic host bridge driver
     Move structure definitions to separate header file (David Daney)
     Add pci_host_common_probe(), based on gen_pci_probe() (David Daney)
     Expose pci_host_common_probe() for use by other drivers (David Daney)
 
   Altera host bridge driver
     Fix altera_pcie_link_is_up() (Ley Foon Tan)
 
   Cavium ThunderX host bridge driver
     Add PCIe host driver for ThunderX processors (David Daney)
     Add driver for ThunderX-pass{1,2} on-chip devices (David Daney)
 
   Freescale i.MX6 host bridge driver
     Add DT bindings to configure PHY Tx driver settings (Justin Waters)
     Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach)
     Move PHY reset into imx6_pcie_establish_link() (Lucas Stach)
     Remove broken Gen2 workaround (Lucas Stach)
     Move link up check into imx6_pcie_wait_for_link() (Lucas Stach)
 
   Freescale Layerscape host bridge driver
     Add "fsl,ls2085a-pcie" compatible ID (Yang Shi)
 
   Intel VMD host bridge driver
     Attach VMD resources to parent domain's resource tree (Jon Derrick)
     Set bus resource start to 0 (Keith Busch)
 
   Microsoft Hyper-V host bridge driver
     Add fwnode_handle to x86 pci_sysdata (Jake Oshins)
     Look up IRQ domain by fwnode_handle (Jake Oshins)
     Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins)
 
   NVIDIA Tegra host bridge driver
     Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding)
     Implement ->{add,remove}_bus() callbacks (Thierry Reding)
     Remove unused struct tegra_pcie.num_ports field (Thierry Reding)
     Track bus -> CPU mapping (Thierry Reding)
     Remove misleading PHYS_OFFSET (Thierry Reding)
 
   Renesas R-Car host bridge driver
     Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman)
 
   Synopsys DesignWare host bridge driver
     ARC: Add PCI support (Joao Pinto)
     Add generic dw_pcie_wait_for_link() (Joao Pinto)
     Add default link up check if sub-driver doesn't override (Joao Pinto)
     Add driver for prototyping kits based on ARC SDP (Joao Pinto)
 
   TI Keystone host bridge driver
     Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin)
 
   Xilinx AXI host bridge driver
     Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada)
     Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada)
     Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada)
     Update Zynq binding with Microblaze node (Bharat Kumar Gogada)
     microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada)
 
   Xilinx NWL host bridge driver
     Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada)
 
   Miscellaneous
     Check device_attach() return value always (Bjorn Helgaas)
     Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas)
     Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas)
     ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas)
     Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas)
     Remove includes of asm/pci-bridge.h (Bjorn Helgaas)
     Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas)
     unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas)
     Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler)
     Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas)
     Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa)
     frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig)
     Move pci_dma_* helpers to common code (Christoph Hellwig)
     Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus)
     Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson)
     Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)
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Merge tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for v4.6:

  Enumeration:
   - Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas)
   - Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas

  Resource management:
   - Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
   - Don't assign or reassign immutable resources (Bjorn Helgaas)
   - Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas)
   - Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas)
   - Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas)
   - ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas)
   - ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
   - MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
   - Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas)
   - Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas)
   - rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
   - designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)

  Virtualization:
   - Wait for up to 1000ms after FLR reset (Alex Williamson)
   - Support SR-IOV on any function type (Kelly Zytaruk)
   - Add ACS quirk for all Cavium devices (Manish Jaggi)

  AER:
   - Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas)
   - Restore pci_ops pointer while calling original pci_ops (David Daney)
   - Fix aer_inject error codes (Jean Delvare)
   - Use dev_warn() in aer_inject (Jean Delvare)
   - Log actual error causes in aer_inject (Jean Delvare)
   - Log aer_inject error injections (Jean Delvare)

  VPD:
   - Prevent VPD access for buggy devices (Babu Moger)
   - Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas)
   - Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas)
   - Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas)
   - Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas)
   - Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas)
   - Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas)
   - Update VPD definitions (Hannes Reinecke)
   - Allow access to VPD attributes with size 0 (Hannes Reinecke)
   - Determine actual VPD size on first access (Hannes Reinecke)

  Generic host bridge driver:
   - Move structure definitions to separate header file (David Daney)
   - Add pci_host_common_probe(), based on gen_pci_probe() (David Daney)
   - Expose pci_host_common_probe() for use by other drivers (David Daney)

  Altera host bridge driver:
   - Fix altera_pcie_link_is_up() (Ley Foon Tan)

  Cavium ThunderX host bridge driver:
   - Add PCIe host driver for ThunderX processors (David Daney)
   - Add driver for ThunderX-pass{1,2} on-chip devices (David Daney)

  Freescale i.MX6 host bridge driver:
   - Add DT bindings to configure PHY Tx driver settings (Justin Waters)
   - Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach)
   - Move PHY reset into imx6_pcie_establish_link() (Lucas Stach)
   - Remove broken Gen2 workaround (Lucas Stach)
   - Move link up check into imx6_pcie_wait_for_link() (Lucas Stach)

  Freescale Layerscape host bridge driver:
   - Add "fsl,ls2085a-pcie" compatible ID (Yang Shi)

  Intel VMD host bridge driver:
   - Attach VMD resources to parent domain's resource tree (Jon Derrick)
   - Set bus resource start to 0 (Keith Busch)

  Microsoft Hyper-V host bridge driver:
   - Add fwnode_handle to x86 pci_sysdata (Jake Oshins)
   - Look up IRQ domain by fwnode_handle (Jake Oshins)
   - Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins)

  NVIDIA Tegra host bridge driver:
   - Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding)
   - Implement ->{add,remove}_bus() callbacks (Thierry Reding)
   - Remove unused struct tegra_pcie.num_ports field (Thierry Reding)
   - Track bus -> CPU mapping (Thierry Reding)
   - Remove misleading PHYS_OFFSET (Thierry Reding)

  Renesas R-Car host bridge driver:
   - Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman)

  Synopsys DesignWare host bridge driver:
   - ARC: Add PCI support (Joao Pinto)
   - Add generic dw_pcie_wait_for_link() (Joao Pinto)
   - Add default link up check if sub-driver doesn't override (Joao Pinto)
   - Add driver for prototyping kits based on ARC SDP (Joao Pinto)

  TI Keystone host bridge driver:
   - Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin)

  Xilinx AXI host bridge driver:
   - Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada)
   - Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada)
   - Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada)
   - Update Zynq binding with Microblaze node (Bharat Kumar Gogada)
   - microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada)

  Xilinx NWL host bridge driver:
   - Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada)

  Miscellaneous:
   - Check device_attach() return value always (Bjorn Helgaas)
   - Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas)
   - Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas)
   - ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas)
   - Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas)
   - Remove includes of asm/pci-bridge.h (Bjorn Helgaas)
   - Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas)
   - unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas)
   - Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler)
   - Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas)
   - Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa)
   - frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig)
   - Move pci_dma_* helpers to common code (Christoph Hellwig)
   - Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus)
   - Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson)
   - Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)"

* tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
  PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition
  PCI: designware: Add driver for prototyping kits based on ARC SDP
  PCI: designware: Add default link up check if sub-driver doesn't override
  PCI: designware: Add generic dw_pcie_wait_for_link()
  PCI: Cleanup pci/pcie/Kconfig whitespace
  PCI: Simplify pci_create_attr() control flow
  PCI: Don't leak memory if sysfs_create_bin_file() fails
  PCI: Simplify sysfs ROM cleanup
  PCI: Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY
  MIPS: Loongson 3: Keep CPU physical (not virtual) addresses in shadow ROM resource
  MIPS: Loongson 3: Use temporary struct resource * to avoid repetition
  ia64/PCI: Keep CPU physical (not virtual) addresses in shadow ROM resource
  ia64/PCI: Use ioremap() instead of open-coded equivalent
  ia64/PCI: Use temporary struct resource * to avoid repetition
  PCI: Clean up pci_map_rom() whitespace
  PCI: Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs
  PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices
  PCI: thunder: Add PCIe host driver for ThunderX processors
  PCI: generic: Expose pci_host_common_probe() for use by other drivers
  PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe()
  ...
 2016-03-16 14:45:55 -07:00
Linus Torvalds
277edbabf6 Power management and ACPI material for v4.6-rc1, part 1 
- Redesign of cpufreq governors and the intel_pstate driver to
    make them use callbacks invoked by the scheduler to trigger CPU
    frequency evaluation instead of using per-CPU deferrable timers
    for that purpose (Rafael Wysocki).
 
  - Reorganization and cleanup of cpufreq governor code to make it
    more straightforward and fix some concurrency problems in it
    (Rafael Wysocki, Viresh Kumar).
 
  - Cleanup and improvements of locking in the cpufreq core (Viresh
    Kumar).
 
  - Assorted cleanups in the cpufreq core (Rafael Wysocki, Viresh
    Kumar, Eric Biggers).
 
  - intel_pstate driver updates including fixes, optimizations and a
    modification to make it enable enable hardware-coordinated P-state
    selection (HWP) by default if supported by the processor (Philippe
    Longepe, Srinivas Pandruvada, Rafael Wysocki, Viresh Kumar, Felipe
    Franciosi).
 
  - Operating Performance Points (OPP) framework updates to improve
    its handling of voltage regulators and device clocks and updates
    of the cpufreq-dt driver on top of that (Viresh Kumar, Jon Hunter).
 
  - Updates of the powernv cpufreq driver to fix initialization
    and cleanup problems in it and correct its worker thread handling
    with respect to CPU offline, new powernv_throttle tracepoint
    (Shilpasri Bhat).
 
  - ACPI cpufreq driver optimization and cleanup (Rafael Wysocki).
 
  - ACPICA updates including one fix for a regression introduced
    by previos changes in the ACPICA code (Bob Moore, Lv Zheng,
    David Box, Colin Ian King).
 
  - Support for installing ACPI tables from initrd (Lv Zheng).
 
  - Optimizations of the ACPI CPPC code (Prashanth Prakash, Ashwin
    Chaugule).
 
  - Support for _HID(ACPI0010) devices (ACPI processor containers)
    and ACPI processor driver cleanups (Sudeep Holla).
 
  - Support for ACPI-based enumeration of the AMBA bus (Graeme Gregory,
    Aleksey Makarov).
 
  - Modification of the ACPI PCI IRQ management code to make it treat
    255 in the Interrupt Line register as "not connected" on x86 (as
    per the specification) and avoid attempts to use that value as
    a valid interrupt vector (Chen Fan).
 
  - ACPI APEI fixes related to resource leaks (Josh Hunt).
 
  - Removal of modularity from a few ACPI drivers (BGRT, GHES,
    intel_pmic_crc) that cannot be built as modules in practice (Paul
    Gortmaker).
 
  - PNP framework update to make it treat ACPI_RESOURCE_TYPE_SERIAL_BUS
    as a valid resource type (Harb Abdulhamid).
 
  - New device ID (future AMD I2C controller) in the ACPI driver for
    AMD SoCs (APD) and in the designware I2C driver (Xiangliang Yu).
 
  - Assorted ACPI cleanups (Colin Ian King, Kaiyen Chang, Oleg Drokin).
 
  - cpuidle menu governor optimization to avoid a square root
    computation in it (Rasmus Villemoes).
 
  - Fix for potential use-after-free in the generic device properties
    framework (Heikki Krogerus).
 
  - Updates of the generic power domains (genpd) framework including
    support for multiple power states of a domain, fixes and debugfs
    output improvements (Axel Haslam, Jon Hunter, Laurent Pinchart,
    Geert Uytterhoeven).
 
  - Intel RAPL power capping driver updates to reduce IPI overhead in
    it (Jacob Pan).
 
  - System suspend/hibernation code cleanups (Eric Biggers, Saurabh
    Sengar).
 
  - Year 2038 fix for the process freezer (Abhilash Jindal).
 
  - turbostat utility updates including new features (decoding of more
    registers and CPUID fields, sub-second intervals support, GFX MHz
    and RC6 printout, --out command line option), fixes (syscall jitter
    detection and workaround, reductioin of the number of syscalls made,
    fixes related to Xeon x200 processors, compiler warning fixes) and
    cleanups (Len Brown, Hubert Chrzaniuk, Chen Yu).
 
 /
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Merge tag 'pm+acpi-4.6-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "This time the majority of changes go into cpufreq and they are
  significant.

  First off, the way CPU frequency updates are triggered is different
  now.  Instead of having to set up and manage a deferrable timer for
  each CPU in the system to evaluate and possibly change its frequency
  periodically, cpufreq governors set up callbacks to be invoked by the
  scheduler on a regular basis (basically on utilization updates).  The
  "old" governors, "ondemand" and "conservative", still do all of their
  work in process context (although that is triggered by the scheduler
  now), but intel_pstate does it all in the callback invoked by the
  scheduler with no need for any additional asynchronous processing.

  Of course, this eliminates the overhead related to the management of
  all those timers, but also it allows the cpufreq governor code to be
  simplified quite a bit.  On top of that, the common code and data
  structures used by the "ondemand" and "conservative" governors are
  cleaned up and made more straightforward and some long-standing and
  quite annoying problems are addressed.  In particular, the handling of
  governor sysfs attributes is modified and the related locking becomes
  more fine grained which allows some concurrency problems to be avoided
  (particularly deadlocks with the core cpufreq code).

  In principle, the new mechanism for triggering frequency updates
  allows utilization information to be passed from the scheduler to
  cpufreq.  Although the current code doesn't make use of it, in the
  works is a new cpufreq governor that will make decisions based on the
  scheduler's utilization data.  That should allow the scheduler and
  cpufreq to work more closely together in the long run.

  In addition to the core and governor changes, cpufreq drivers are
  updated too.  Fixes and optimizations go into intel_pstate, the
  cpufreq-dt driver is updated on top of some modification in the
  Operating Performance Points (OPP) framework and there are fixes and
  other updates in the powernv cpufreq driver.

  Apart from the cpufreq updates there is some new ACPICA material,
  including a fix for a problem introduced by previous ACPICA updates,
  and some less significant changes in the ACPI code, like CPPC code
  optimizations, ACPI processor driver cleanups and support for loading
  ACPI tables from initrd.

  Also updated are the generic power domains framework, the Intel RAPL
  power capping driver and the turbostat utility and we have a bunch of
  traditional assorted fixes and cleanups.

  Specifics:

   - Redesign of cpufreq governors and the intel_pstate driver to make
     them use callbacks invoked by the scheduler to trigger CPU
     frequency evaluation instead of using per-CPU deferrable timers for
     that purpose (Rafael Wysocki).

   - Reorganization and cleanup of cpufreq governor code to make it more
     straightforward and fix some concurrency problems in it (Rafael
     Wysocki, Viresh Kumar).

   - Cleanup and improvements of locking in the cpufreq core (Viresh
     Kumar).

   - Assorted cleanups in the cpufreq core (Rafael Wysocki, Viresh
     Kumar, Eric Biggers).

   - intel_pstate driver updates including fixes, optimizations and a
     modification to make it enable enable hardware-coordinated P-state
     selection (HWP) by default if supported by the processor (Philippe
     Longepe, Srinivas Pandruvada, Rafael Wysocki, Viresh Kumar, Felipe
     Franciosi).

   - Operating Performance Points (OPP) framework updates to improve its
     handling of voltage regulators and device clocks and updates of the
     cpufreq-dt driver on top of that (Viresh Kumar, Jon Hunter).

   - Updates of the powernv cpufreq driver to fix initialization and
     cleanup problems in it and correct its worker thread handling with
     respect to CPU offline, new powernv_throttle tracepoint (Shilpasri
     Bhat).

   - ACPI cpufreq driver optimization and cleanup (Rafael Wysocki).

   - ACPICA updates including one fix for a regression introduced by
     previos changes in the ACPICA code (Bob Moore, Lv Zheng, David Box,
     Colin Ian King).

   - Support for installing ACPI tables from initrd (Lv Zheng).

   - Optimizations of the ACPI CPPC code (Prashanth Prakash, Ashwin
     Chaugule).

   - Support for _HID(ACPI0010) devices (ACPI processor containers) and
     ACPI processor driver cleanups (Sudeep Holla).

   - Support for ACPI-based enumeration of the AMBA bus (Graeme Gregory,
     Aleksey Makarov).

   - Modification of the ACPI PCI IRQ management code to make it treat
     255 in the Interrupt Line register as "not connected" on x86 (as
     per the specification) and avoid attempts to use that value as a
     valid interrupt vector (Chen Fan).

   - ACPI APEI fixes related to resource leaks (Josh Hunt).

   - Removal of modularity from a few ACPI drivers (BGRT, GHES,
     intel_pmic_crc) that cannot be built as modules in practice (Paul
     Gortmaker).

   - PNP framework update to make it treat ACPI_RESOURCE_TYPE_SERIAL_BUS
     as a valid resource type (Harb Abdulhamid).

   - New device ID (future AMD I2C controller) in the ACPI driver for
     AMD SoCs (APD) and in the designware I2C driver (Xiangliang Yu).

   - Assorted ACPI cleanups (Colin Ian King, Kaiyen Chang, Oleg Drokin).

   - cpuidle menu governor optimization to avoid a square root
     computation in it (Rasmus Villemoes).

   - Fix for potential use-after-free in the generic device properties
     framework (Heikki Krogerus).

   - Updates of the generic power domains (genpd) framework including
     support for multiple power states of a domain, fixes and debugfs
     output improvements (Axel Haslam, Jon Hunter, Laurent Pinchart,
     Geert Uytterhoeven).

   - Intel RAPL power capping driver updates to reduce IPI overhead in
     it (Jacob Pan).

   - System suspend/hibernation code cleanups (Eric Biggers, Saurabh
     Sengar).

   - Year 2038 fix for the process freezer (Abhilash Jindal).

   - turbostat utility updates including new features (decoding of more
     registers and CPUID fields, sub-second intervals support, GFX MHz
     and RC6 printout, --out command line option), fixes (syscall jitter
     detection and workaround, reductioin of the number of syscalls
     made, fixes related to Xeon x200 processors, compiler warning
     fixes) and cleanups (Len Brown, Hubert Chrzaniuk, Chen Yu)"

* tag 'pm+acpi-4.6-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (182 commits)
  tools/power turbostat: bugfix: TDP MSRs print bits fixing
  tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump
  tools/power turbostat: call __cpuid() instead of __get_cpuid()
  tools/power turbostat: indicate SMX and SGX support
  tools/power turbostat: detect and work around syscall jitter
  tools/power turbostat: show GFX%rc6
  tools/power turbostat: show GFXMHz
  tools/power turbostat: show IRQs per CPU
  tools/power turbostat: make fewer systems calls
  tools/power turbostat: fix compiler warnings
  tools/power turbostat: add --out option for saving output in a file
  tools/power turbostat: re-name "%Busy" field to "Busy%"
  tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding
  tools/power turbostat: Intel Xeon x200: fix erroneous bclk value
  tools/power turbostat: allow sub-sec intervals
  ACPI / APEI: ERST: Fixed leaked resources in erst_init
  ACPI / APEI: Fix leaked resources
  intel_pstate: Do not skip samples partially
  intel_pstate: Remove freq calculation from intel_pstate_calc_busy()
  intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance()
  ...
 2016-03-16 14:10:53 -07:00
Sylvain Lemieux
e21f56219b arm: lpc32xx: remove restart handler 
Remove the restart handler from "mach-lpc32xx";
this functionality is now available in the
pnx4008 watchdog driver.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
 2016-03-16 21:09:44 +01:00
Sylvain Lemieux
0a25345743 arm: lpc32xx: phy3250 remove restart hook 
Remove the restart hook assignment from phy3250;
this functionality is now managed by
the pnx4008 watchdog driver.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
 2016-03-16 21:09:43 +01:00
Linus Torvalds
10dc374766 One of the largest releases for KVM... Hardly any generic improvement, 
but lots of architecture-specific changes.
 
 * ARM:
 - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
 - PMU support for guests
 - 32bit world switch rewritten in C
 - various optimizations to the vgic save/restore code.
 
 * PPC:
 - enabled KVM-VFIO integration ("VFIO device")
 - optimizations to speed up IPIs between vcpus
 - in-kernel handling of IOMMU hypercalls
 - support for dynamic DMA windows (DDW).
 
 * s390:
 - provide the floating point registers via sync regs;
 - separated instruction vs. data accesses
 - dirty log improvements for huge guests
 - bugfixes and documentation improvements.
 
 * x86:
 - Hyper-V VMBus hypercall userspace exit
 - alternative implementation of lowest-priority interrupts using vector
 hashing (for better VT-d posted interrupt support)
 - fixed guest debugging with nested virtualizations
 - improved interrupt tracking in the in-kernel IOAPIC
 - generic infrastructure for tracking writes to guest memory---currently
 its only use is to speedup the legacy shadow paging (pre-EPT) case, but
 in the future it will be used for virtual GPUs as well
 - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "One of the largest releases for KVM...  Hardly any generic
  changes, but lots of architecture-specific updates.

  ARM:
   - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
   - PMU support for guests
   - 32bit world switch rewritten in C
   - various optimizations to the vgic save/restore code.

  PPC:
   - enabled KVM-VFIO integration ("VFIO device")
   - optimizations to speed up IPIs between vcpus
   - in-kernel handling of IOMMU hypercalls
   - support for dynamic DMA windows (DDW).

  s390:
   - provide the floating point registers via sync regs;
   - separated instruction vs.  data accesses
   - dirty log improvements for huge guests
   - bugfixes and documentation improvements.

  x86:
   - Hyper-V VMBus hypercall userspace exit
   - alternative implementation of lowest-priority interrupts using
     vector hashing (for better VT-d posted interrupt support)
   - fixed guest debugging with nested virtualizations
   - improved interrupt tracking in the in-kernel IOAPIC
   - generic infrastructure for tracking writes to guest
     memory - currently its only use is to speedup the legacy shadow
     paging (pre-EPT) case, but in the future it will be used for
     virtual GPUs as well
   - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (217 commits)
  KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch
  KVM: x86: disable MPX if host did not enable MPX XSAVE features
  arm64: KVM: vgic-v3: Only wipe LRs on vcpu exit
  arm64: KVM: vgic-v3: Reset LRs at boot time
  arm64: KVM: vgic-v3: Do not save an LR known to be empty
  arm64: KVM: vgic-v3: Save maintenance interrupt state only if required
  arm64: KVM: vgic-v3: Avoid accessing ICH registers
  KVM: arm/arm64: vgic-v2: Make GICD_SGIR quicker to hit
  KVM: arm/arm64: vgic-v2: Only wipe LRs on vcpu exit
  KVM: arm/arm64: vgic-v2: Reset LRs at boot time
  KVM: arm/arm64: vgic-v2: Do not save an LR known to be empty
  KVM: arm/arm64: vgic-v2: Move GICH_ELRSR saving to its own function
  KVM: arm/arm64: vgic-v2: Save maintenance interrupt state only if required
  KVM: arm/arm64: vgic-v2: Avoid accessing GICH registers
  KVM: s390: allocate only one DMA page per VM
  KVM: s390: enable STFLE interpretation only if enabled for the guest
  KVM: s390: wake up when the VCPU cpu timer expires
  KVM: s390: step the VCPU timer while in enabled wait
  KVM: s390: protect VCPU cpu timer with a seqcount
  KVM: s390: step VCPU cpu timer during kvm_run ioctl
  ...
 2016-03-16 09:55:35 -07:00
Linus Torvalds
047486d8e7 EDAC queue for 4.6 
* Altera: L2 cache and On-Chip RAM support (Thor Thayer).
 
 * EDAC: Workqueue handling cleanups (Borislav Petkov).
 
 * Xgene: Register bus error handling (Loc Ho).
 
 * Misc small fixes.
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Merge tag 'edac_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - Altera: L2 cache and On-Chip RAM support (Thor Thayer).

 - EDAC: Workqueue handling cleanups (Borislav Petkov).

 - Xgene: Register bus error handling (Loc Ho).

 - Misc small fixes.

* tag 'edac_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  ARM: socfpga: Enable OCRAM ECC on startup
  ARM: socfpga: Enable L2 cache ECC on startup
  ARM: dts: Add Altera L2 Cache and OCRAM EDAC entries
  EDAC, altera: Add Altera L2 cache and OCRAM support
  EDAC: Use edac_debugfs_remove_recursive() in edac_debugfs_exit()
  EDAC, mpc85xx: Silence unused variable warning
  EDAC: Cleanup/sync workqueue functions
  EDAC: Kill workqueue setup/teardown functions
  EDAC: Balance workqueue setup and teardown
  arm64: Update the APM X-Gene EDAC node with the RB register resource
  EDAC, xgene: Add missing SoC register bus error handling
  Documentation, EDAC: Update xgene binding for missing register bus
  EDAC, amd64_edac: Shift wrapping issue in f1x_get_norm_dct_addr()
 2016-03-16 08:36:55 -07:00
Linus Torvalds
f0718cea47 hwmon updates for v4.5: 
- New drivers for NSA320 and LTC2990
 - Added support for ADM1278 to adm1275 driver
 - Added support for ncpXXxh103 to ntc_thermistor driver
 - Renamed vexpress hwmon implementation
 - Minor cleanups and improvements
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Merge tag 'hwmon-for-linus-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 - New drivers for NSA320 and LTC2990
 - Added support for ADM1278 to adm1275 driver
 - Added support for ncpXXxh103 to ntc_thermistor driver
 - Renamed vexpress hwmon implementation
 - Minor cleanups and improvements

* tag 'hwmon-for-linus-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: Create an NSA320 hardware monitoring driver
  hwmon: Define binding for the nsa320-hwmon driver
  hwmon: (adm1275) Add support for ADM1278
  hwmon: (ntc_thermistor) Add support for ncpXXxh103
  Doc: hwmon: Fix typo "montoring" in hwmon
  ARM: dts: vfxxx: Add iio_hwmon node for ADC temperature channel
  ARM: dts: Change iio_hwmon nodes to use hypen in node names
  hwmon: (iio_hwmon) Allow the driver to accept hypen in device tree node names
  hwmon: Add LTC2990 sensor driver
  hwmon: (vexpress) rename vexpress hwmon implementation
 2016-03-15 21:44:47 -07:00
Linus Torvalds
5ca5446ec5 Pin control changes for kernel v4.6: 
An almost purely driver related set of changes with no
 major changes to the framework, only one patch adding
 an unlocked version of the pinctrl_find_gpio_range_from_pin()
 library call.
 
 New drivers:
 - ST Microelectronics STM32 MCU support: this is a non-MMU
   low-end platform for IoT things (etc).
 - Microchip PIC32 MCU support: same story as for STM32.
 
 New subdrivers:
 - Allwinner SunXi H3 R_PIO controller support.
 - Qualcomm IPQ4019 support.
 - MediaTek MT2701 and MT7623.
 - Allwinner A64
 
 Non-critical fixes:
 - gpio_disable_free() for the Vybrid.
 - pinctrl single: use a separate lockdep class.
 
 Misc:
 - Substantial cleanups and rewrites for the Super-H PFC
   driver and subdrivers.
 - Various fixes and cleanups, especially Paul Gortmakers
   work to make nonmodular drivers nonmodular.
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Merge tag 'pinctrl-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "An almost purely driver related set of changes with no major changes
  to the framework, only one patch adding an unlocked version of the
  pinctrl_find_gpio_range_from_pin() library call.

  New drivers:
   - ST Microelectronics STM32 MCU support: this is a non-MMU low-end
     platform for IoT things (etc).
   - Microchip PIC32 MCU support: same story as for STM32.

  New subdrivers:
   - Allwinner SunXi H3 R_PIO controller support.
   - Qualcomm IPQ4019 support.
   - MediaTek MT2701 and MT7623.
   - Allwinner A64

  Non-critical fixes:
   - gpio_disable_free() for the Vybrid.
   - pinctrl single: use a separate lockdep class.

  Misc:
   - Substantial cleanups and rewrites for the Super-H PFC driver and
     subdrivers.
   - Various fixes and cleanups, especially Paul Gortmakers work to make
     nonmodular drivers nonmodular"

* tag 'pinctrl-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits)
  pinctrl: single: Use a separate lockdep class
  drivers: pinctrl: add driver for Allwinner A64 SoC
  pinctrl: Broadcom Northstar2 pinctrl device tree bindings
  pinctrl: amlogic: Make driver independent from two-domain configuration
  pinctrl: amlogic: Separate some pin functions for Meson8 / Meson8b
  pinctrl: at91: use __maybe_unused to hide pm functions
  pinctrl: sh-pfc: core: don't open code of_device_get_match_data()
  pinctrl: uniphier: rename CONFIG options and file names
  pinctrl: sunxi: make A80 explicitly non-modular
  pinctrl: stm32: make explicitly non-modular
  pinctrl: sh-pfc: make explicitly non-modular
  pinctrl: meson: make explicitly non-modular
  pinctrl: pinctrl-mt6397 driver explicitly non-modular
  pinctrl: sunxi: does not need module.h
  pinctrl: pxa2xx: export symbols
  pinctrl: sunxi: Change mux setting on PI irq pins
  pinctrl: sunxi: Remove non existing irq's
  pinctrl: imx: attach iomuxc device to gpr syscon
  pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsing
  pinctrl: lpc1850-scu: document nxp,gpio-pin-interrupt
  ...
 2016-03-15 20:23:13 -07:00
Simon Horman
09c32427c9 clk: renesas: Rename header file renesas.h 
This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Along with the above mentioned Kconfig changes it seems appropriate
to also rename files.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
 2016-03-15 18:12:14 -07:00
Arnd Bergmann
4d2508a559 ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props 
gcc-6.0 notices that the use of the property_entry in this file that
was recently introduced cannot work right, as we initialize the wrong
field:

raumfeld.c:387:3: error: the address of 'raumfeld_rotary_encoder_steps' will always evaluate as 'true' [-Werror=address]
   DEV_PROP_U32, 1, &raumfeld_rotary_encoder_steps, },
   ^~~~~~~~~~~~
raumfeld.c:389:3: error: the address of 'raumfeld_rotary_encoder_axis' will always evaluate as 'true' [-Werror=address]
   DEV_PROP_U32, 1, &raumfeld_rotary_encoder_axis, },
   ^~~~~~~~~~~~
raumfeld.c:391:3: error: the address of 'raumfeld_rotary_encoder_relative_axis' will always evaluate as 'true' [-Werror=address]
   DEV_PROP_U32, 1, &raumfeld_rotary_encoder_relative_axis, },
   ^~~~~~~~~~~~

The problem appears to stem from relying on an old definition of
'struct property', but it has changed several times since the code
could have last been correct.

This changes the code to use the PROPERTY_ENTRY_INTEGER() macro instead,
which works fine for the current definition and is a safer way of doing
the initialization.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: a9e340dce3 ("Input: rotary_encoder - move away from platform data structure")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 2016-03-15 16:56:46 -07:00
Dmitry Torokhov
245f0db0de Linux 4.5 
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Merge tag 'v4.5' into next

Merge with Linux 4.5 to get PROPERTY_ENTRY_INTEGER() that is needed to
fix pxa/raumfeld rotary encoder properties.
 2016-03-15 16:54:45 -07:00
Linus Torvalds
710d60cbf1 Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull cpu hotplug updates from Thomas Gleixner:
 "This is the first part of the ongoing cpu hotplug rework:

   - Initial implementation of the state machine

   - Runs all online and prepare down callbacks on the plugged cpu and
     not on some random processor

   - Replaces busy loop waiting with completions

   - Adds tracepoints so the states can be followed"

More detailed commentary on this work from an earlier email:
 "What's wrong with the current cpu hotplug infrastructure?

   - Asymmetry

     The hotplug notifier mechanism is asymmetric versus the bringup and
     teardown.  This is mostly caused by the notifier mechanism.

   - Largely undocumented dependencies

     While some notifiers use explicitely defined notifier priorities,
     we have quite some notifiers which use numerical priorities to
     express dependencies without any documentation why.

   - Control processor driven

     Most of the bringup/teardown of a cpu is driven by a control
     processor.  While it is understandable, that preperatory steps,
     like idle thread creation, memory allocation for and initialization
     of essential facilities needs to be done before a cpu can boot,
     there is no reason why everything else must run on a control
     processor.  Before this patch series, bringup looks like this:

       Control CPU                     Booting CPU

       do preparatory steps
       kick cpu into life

                                       do low level init

       sync with booting cpu           sync with control cpu

       bring the rest up

   - All or nothing approach

     There is no way to do partial bringups.  That's something which is
     really desired because we waste e.g.  at boot substantial amount of
     time just busy waiting that the cpu comes to life.  That's stupid
     as we could very well do preparatory steps and the initial IPI for
     other cpus and then go back and do the necessary low level
     synchronization with the freshly booted cpu.

   - Minimal debuggability

     Due to the notifier based design, it's impossible to switch between
     two stages of the bringup/teardown back and forth in order to test
     the correctness.  So in many hotplug notifiers the cancel
     mechanisms are either not existant or completely untested.

   - Notifier [un]registering is tedious

     To [un]register notifiers we need to protect against hotplug at
     every callsite.  There is no mechanism that bringup/teardown
     callbacks are issued on the online cpus, so every caller needs to
     do it itself.  That also includes error rollback.

  What's the new design?

     The base of the new design is a symmetric state machine, where both
     the control processor and the booting/dying cpu execute a well
     defined set of states.  Each state is symmetric in the end, except
     for some well defined exceptions, and the bringup/teardown can be
     stopped and reversed at almost all states.

     So the bringup of a cpu will look like this in the future:

       Control CPU                     Booting CPU

       do preparatory steps
       kick cpu into life

                                       do low level init

       sync with booting cpu           sync with control cpu

                                       bring itself up

     The synchronization step does not require the control cpu to wait.
     That mechanism can be done asynchronously via a worker or some
     other mechanism.

     The teardown can be made very similar, so that the dying cpu cleans
     up and brings itself down.  Cleanups which need to be done after
     the cpu is gone, can be scheduled asynchronously as well.

  There is a long way to this, as we need to refactor the notion when a
  cpu is available.  Today we set the cpu online right after it comes
  out of the low level bringup, which is not really correct.

  The proper mechanism is to set it to available, i.e. cpu local
  threads, like softirqd, hotplug thread etc. can be scheduled on that
  cpu, and once it finished all booting steps, it's set to online, so
  general workloads can be scheduled on it.  The reverse happens on
  teardown.  First thing to do is to forbid scheduling of general
  workloads, then teardown all the per cpu resources and finally shut it
  off completely.

  This patch series implements the basic infrastructure for this at the
  core level.  This includes the following:

   - Basic state machine implementation with well defined states, so
     ordering and prioritization can be expressed.

   - Interfaces to [un]register state callbacks

     This invokes the bringup/teardown callback on all online cpus with
     the proper protection in place and [un]installs the callbacks in
     the state machine array.

     For callbacks which have no particular ordering requirement we have
     a dynamic state space, so that drivers don't have to register an
     explicit hotplug state.

     If a callback fails, the code automatically does a rollback to the
     previous state.

   - Sysfs interface to drive the state machine to a particular step.

     This is only partially functional today.  Full functionality and
     therefor testability will be achieved once we converted all
     existing hotplug notifiers over to the new scheme.

   - Run all CPU_ONLINE/DOWN_PREPARE notifiers on the booting/dying
     processor:

       Control CPU                     Booting CPU

       do preparatory steps
       kick cpu into life

                                       do low level init

       sync with booting cpu           sync with control cpu
       wait for boot
                                       bring itself up

                                       Signal completion to control cpu

     In a previous step of this work we've done a full tree mechanical
     conversion of all hotplug notifiers to the new scheme.  The balance
     is a net removal of about 4000 lines of code.

     This is not included in this series, as we decided to take a
     different approach.  Instead of mechanically converting everything
     over, we will do a proper overhaul of the usage sites one by one so
     they nicely fit into the symmetric callback scheme.

     I decided to do that after I looked at the ugliness of some of the
     converted sites and figured out that their hotplug mechanism is
     completely buggered anyway.  So there is no point to do a
     mechanical conversion first as we need to go through the usage
     sites one by one again in order to achieve a full symmetric and
     testable behaviour"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  cpu/hotplug: Document states better
  cpu/hotplug: Fix smpboot thread ordering
  cpu/hotplug: Remove redundant state check
  cpu/hotplug: Plug death reporting race
  rcu: Make CPU_DYING_IDLE an explicit call
  cpu/hotplug: Make wait for dead cpu completion based
  cpu/hotplug: Let upcoming cpu bring itself fully up
  arch/hotplug: Call into idle with a proper state
  cpu/hotplug: Move online calls to hotplugged cpu
  cpu/hotplug: Create hotplug threads
  cpu/hotplug: Split out the state walk into functions
  cpu/hotplug: Unpark smpboot threads from the state machine
  cpu/hotplug: Move scheduler cpu_online notifier to hotplug core
  cpu/hotplug: Implement setup/removal interface
  cpu/hotplug: Make target state writeable
  cpu/hotplug: Add sysfs state interface
  cpu/hotplug: Hand in target state to _cpu_up/down
  cpu/hotplug: Convert the hotplugged cpu work to a state machine
  cpu/hotplug: Convert to a state machine for the control processor
  cpu/hotplug: Add tracepoints
  ...
 2016-03-15 13:50:29 -07:00
Linus Torvalds
df2e37c814 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull irq updates from Thomas Gleixner:
 "The 4.6 pile of irq updates contains:

   - Support for IPI irqdomains to support proper integration of IPIs to
     and from coprocessors.  The first user of this new facility is
     MIPS.  The relevant MIPS patches come with the core to avoid merge
     ordering issues and have been acked by Ralf.

   - A new command line option to set the default interrupt affinity
     mask at boot time.

   - Support for some more new ARM and MIPS interrupt controllers:
     tango, alpine-msix and bcm6345-l1

   - Two small cleanups for x86/apic which we merged into irq/core to
     avoid yet another branch in x86 with two tiny commits.

   - The usual set of updates, cleanups in drivers/irqchip.  Mostly in
     the area of ARM-GIC, arada-37-xp and atmel chips.  Nothing
     outstanding here"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits)
  irqchip/irq-alpine-msi: Release the correct domain on error
  irqchip/mxs: Fix error check of of_io_request_and_map()
  irqchip/sunxi-nmi: Fix error check of of_io_request_and_map()
  genirq: Export IRQ functions for module use
  irqchip/gic/realview: Support more RealView DCC variants
  Documentation/bindings: Document the Alpine MSIX driver
  irqchip: Add the Alpine MSIX interrupt controller
  irqchip/gic-v3: Always return IRQ_SET_MASK_OK_DONE in gic_set_affinity
  irqchip/gic-v3-its: Mark its_init() and its children as __init
  irqchip/gic-v3: Remove gic_root_node variable from the ITS code
  irqchip/gic-v3: ACPI: Add redistributor support via GICC structures
  irqchip/gic-v3: Add ACPI support for GICv3/4 initialization
  irqchip/gic-v3: Refactor gic_of_init() for GICv3 driver
  x86/apic: Deinline _flat_send_IPI_mask, save ~150 bytes
  x86/apic: Deinline __default_send_IPI_*, save ~200 bytes
  dt-bindings: interrupt-controller: Add SoC-specific compatible string to Marvell ODMI
  irqchip/mips-gic: Add new DT property to reserve IPIs
  MIPS: Delete smp-gic.c
  MIPS: Make smp CMP, CPS and MT use the new generic IPI functions
  MIPS: Add generic SMP IPI support
  ...
 2016-03-15 12:48:48 -07:00
Bjorn Helgaas
18e5e6913b Merge branches 'pci/aer', 'pci/enumeration', 'pci/kconfig', 'pci/misc', 'pci/virtualization' and 'pci/vpd' into next 
* pci/aer:
  PCI/AER: Log aer_inject error injections
  PCI/AER: Log actual error causes in aer_inject
  PCI/AER: Use dev_warn() in aer_inject
  PCI/AER: Fix aer_inject error codes

* pci/enumeration:
  PCI: Fix broken URL for Dell biosdevname

* pci/kconfig:
  PCI: Cleanup pci/pcie/Kconfig whitespace
  PCI: Include pci/hotplug Kconfig directly from pci/Kconfig
  PCI: Include pci/pcie/Kconfig directly from pci/Kconfig

* pci/misc:
  PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition
  PCI: Add QEMU top-level IDs for (sub)vendor & device
  unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition
  PCI: Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h
  PCI: Move pci_dma_* helpers to common code
  frv/PCI: Remove stray pci_{alloc,free}_consistent() declaration

* pci/virtualization:
  PCI: Wait for up to 1000ms after FLR reset
  PCI: Support SR-IOV on any function type

* pci/vpd:
  PCI: Prevent VPD access for buggy devices
  PCI: Sleep rather than busy-wait for VPD access completion
  PCI: Fold struct pci_vpd_pci22 into struct pci_vpd
  PCI: Rename VPD symbols to remove unnecessary "pci22"
  PCI: Remove struct pci_vpd_ops.release function pointer
  PCI: Move pci_vpd_release() from header file to pci/access.c
  PCI: Move pci_read_vpd() and pci_write_vpd() close to other VPD code
  PCI: Determine actual VPD size on first access
  PCI: Use bitfield instead of bool for struct pci_vpd_pci22.busy
  PCI: Allow access to VPD attributes with size 0
  PCI: Update VPD definitions
 2016-03-15 08:55:02 -05:00
Linus Torvalds
d4e796152a Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull scheduler updates from Ingo Molnar:
 "The main changes in this cycle are:

   - Make schedstats a runtime tunable (disabled by default) and
     optimize it via static keys.

     As most distributions enable CONFIG_SCHEDSTATS=y due to its
     instrumentation value, this is a nice performance enhancement.
     (Mel Gorman)

   - Implement 'simple waitqueues' (swait): these are just pure
     waitqueues without any of the more complex features of full-blown
     waitqueues (callbacks, wake flags, wake keys, etc.).  Simple
     waitqueues have less memory overhead and are faster.

     Use simple waitqueues in the RCU code (in 4 different places) and
     for handling KVM vCPU wakeups.

     (Peter Zijlstra, Daniel Wagner, Thomas Gleixner, Paul Gortmaker,
     Marcelo Tosatti)

   - sched/numa enhancements (Rik van Riel)

   - NOHZ performance enhancements (Rik van Riel)

   - Various sched/deadline enhancements (Steven Rostedt)

   - Various fixes (Peter Zijlstra)

   - ... and a number of other fixes, cleanups and smaller enhancements"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
  sched/cputime: Fix steal_account_process_tick() to always return jiffies
  sched/deadline: Remove dl_new from struct sched_dl_entity
  Revert "kbuild: Add option to turn incompatible pointer check into error"
  sched/deadline: Remove superfluous call to switched_to_dl()
  sched/debug: Fix preempt_disable_ip recording for preempt_disable()
  sched, time: Switch VIRT_CPU_ACCOUNTING_GEN to jiffy granularity
  time, acct: Drop irq save & restore from __acct_update_integrals()
  acct, time: Change indentation in __acct_update_integrals()
  sched, time: Remove non-power-of-two divides from __acct_update_integrals()
  sched/rt: Kick RT bandwidth timer immediately on start up
  sched/debug: Add deadline scheduler bandwidth ratio to /proc/sched_debug
  sched/debug: Move sched_domain_sysctl to debug.c
  sched/debug: Move the /sys/kernel/debug/sched_features file setup into debug.c
  sched/rt: Fix PI handling vs. sched_setscheduler()
  sched/core: Remove duplicated sched_group_set_shares() prototype
  sched/fair: Consolidate nohz CPU load update code
  sched/fair: Avoid using decay_load_missed() with a negative value
  sched/deadline: Always calculate end of period on sched_yield()
  sched/cgroup: Fix cgroup entity load tracking tear-down
  rcu: Use simple wait queues where possible in rcutree
  ...
 2016-03-14 19:14:06 -07:00
Linus Torvalds
d09e356ad0 Merge branch 'mm-readonly-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull read-only kernel memory updates from Ingo Molnar:
 "This tree adds two (security related) enhancements to the kernel's
  handling of read-only kernel memory:

   - extend read-only kernel memory to a new class of formerly writable
     kernel data: 'post-init read-only memory' via the __ro_after_init
     attribute, and mark the ARM and x86 vDSO as such read-only memory.

     This kind of attribute can be used for data that requires a once
     per bootup initialization sequence, but is otherwise never modified
     after that point.

     This feature was based on the work by PaX Team and Brad Spengler.

     (by Kees Cook, the ARM vDSO bits by David Brown.)

   - make CONFIG_DEBUG_RODATA always enabled on x86 and remove the
     Kconfig option.  This simplifies the kernel and also signals that
     read-only memory is the default model and a first-class citizen.
     (Kees Cook)"

* 'mm-readonly-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ARM/vdso: Mark the vDSO code read-only after init
  x86/vdso: Mark the vDSO code read-only after init
  lkdtm: Verify that '__ro_after_init' works correctly
  arch: Introduce post-init read-only memory
  x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
  mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings
  asm-generic: Consolidate mark_rodata_ro()
 2016-03-14 16:58:50 -07:00
Linus Torvalds
5ec942463b Merge branch 'mm-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull dma_*_writecombine rename from Ingo Molnar:
 "Rename dma_*_writecombine() to dma_*_wc()

  This is a tree-wide API rename, to move the dma_*() write-combining
  APIs closer in name to their usual API families.  (The old API names
  are kept as compatibility wrappers to not introduce extra breakage.)

  The patch was Coccinelle generated"

* 'mm-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
 2016-03-14 16:31:41 -07:00
Linus Torvalds
d37a14bb5f Merge branch 'core-resources-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull ram resource handling changes from Ingo Molnar:
 "Core kernel resource handling changes to support NVDIMM error
  injection.

  This tree introduces a new I/O resource type, IORESOURCE_SYSTEM_RAM,
  for System RAM while keeping the current IORESOURCE_MEM type bit set
  for all memory-mapped ranges (including System RAM) for backward
  compatibility.

  With this resource flag it no longer takes a strcmp() loop through the
  resource tree to find "System RAM" resources.

  The new resource type is then used to extend ACPI/APEI error injection
  facility to also support NVDIMM"

* 'core-resources-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ACPI/EINJ: Allow memory error injection to NVDIMM
  resource: Kill walk_iomem_res()
  x86/kexec: Remove walk_iomem_res() call with GART type
  x86, kexec, nvdimm: Use walk_iomem_res_desc() for iomem search
  resource: Add walk_iomem_res_desc()
  memremap: Change region_intersects() to take @flags and @desc
  arm/samsung: Change s3c_pm_run_res() to use System RAM type
  resource: Change walk_system_ram() to use System RAM type
  drivers: Initialize resource entry to zero
  xen, mm: Set IORESOURCE_SYSTEM_RAM to System RAM
  kexec: Set IORESOURCE_SYSTEM_RAM for System RAM
  arch: Set IORESOURCE_SYSTEM_RAM flag for System RAM
  ia64: Set System RAM type and descriptor
  x86/e820: Set System RAM type and descriptor
  resource: Add I/O resource descriptor
  resource: Handle resource flags properly
  resource: Add System RAM resource type
 2016-03-14 15:15:51 -07:00
Andrew Lunn
ca3dfa51e6 dsa: Rename mv88e6123_61_65 to mv88e6123 to be consistent 
All the drivers support multiple chips, but mv88e6123_61_65 is the
only one that reflects this in its naming. Change it to be consistent
with the other drivers.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-14 15:43:10 -04:00
Gregory CLEMENT
293fdc24fc ARM: dts: armada-xp-openblocks-ax3-4: Add BM support 
Allow Openblock AX3 using hardware buffer management with mvneta.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-14 12:19:46 -04:00
Marcin Wojtas
9dd7a57e2c ARM: dts: armada-xp: enable buffer manager support on Armada XP boards 
Since mvneta driver supports using hardware buffer management (BM), in
order to use it, board files have to be adjusted accordingly. This commit
enables BM on AXP-DB and AXP-GP in same manner - because number of ports
on those boards is the same as number of possible pools, each port is
supposed to use single pool for all kind of packets.

Moreover appropriate entry is added to 'soc' node ranges, as well as "okay"
status for 'bm' and 'bm-bppi' (internal SRAM) nodes.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-14 12:19:45 -04:00
Marcin Wojtas
ebae1376fd ARM: dts: armada-xp: add buffer manager nodes 
Armada XP network controller supports hardware buffer management (BM).
Since it is now enabled in mvneta driver, appropriate nodes can be added
to armada-xp.dtsi - for the actual common BM unit (bm@c0000) and its
internal SRAM (bm-bppi), which is used for indirect access to buffer
pointer ring residing in DRAM.

Pools - ports mapping, bm-bppi entry in 'soc' node's ranges and optional
parameters are supposed to be set in board files.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-14 12:19:45 -04:00
Marcin Wojtas
c49e99c2b2 ARM: dts: armada-38x: enable buffer manager support on Armada 38x boards 
Since mvneta driver supports using hardware buffer management (BM), in
order to use it, board files have to be adjusted accordingly. This commit
enables BM on:
* A385-DB-AP - each port has its own pool for long and common pool for
short packets,
* A388-ClearFog - same as above,
* A388-DB - to each port unique 'short' and 'long' pools are mapped,
* A388-GP - same as above.

Moreover appropriate entry is added to 'soc' node ranges, as well as "okay"
status for 'bm' and 'bm-bppi' (internal SRAM) nodes.

[gregory.clement@free-electrons.com: add suppport for the ClearFog board]

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-14 12:19:45 -04:00
Marcin Wojtas
4a547a5a46 ARM: dts: armada-38x: add buffer manager nodes 
Armada 38x network controller supports hardware buffer management (BM).
Since it is now enabled in mvneta driver, appropriate nodes can be added
to armada-38x.dtsi - for the actual common BM unit (bm@c8000) and its
internal SRAM (bm-bppi), which is used for indirect access to buffer
pointer ring residing in DRAM.

Pools - ports mapping, bm-bppi entry in 'soc' node's ranges and optional
parameters are supposed to be set in board files.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-14 12:19:45 -04:00
Rafael J. Wysocki
93dffd03b3 Merge branches 'pm-cpuidle', 'pm-sleep' and 'pm-domains' 
* pm-cpuidle:
  cpuidle: menu: help gcc generate slightly better code
  cpuidle: menu: avoid expensive square root computation

* pm-sleep:
  PM / suspend: replacing printk
  PM/freezer: y2038, use boottime to compare tstamps
  PM / sleep: declare __tracedata symbols as char[] rather than char

* pm-domains:
  PM / Domains: Fix potential NULL pointer dereference
  PM / Domains: Fix removal of a subdomain
  PM / Domains: Propagate start and restore errors during runtime resume
  PM / Domains: Join state name and index in debugfs output
  PM / Domains: Restore alignment of slaves in debugfs output
  PM / Domains: remove old power on/off latencies
  ARM: imx6: pm: declare pm domain latency on power_state struct
  PM / Domains: Support for multiple states
 2016-03-14 14:22:22 +01:00
Alexander Duyck
1e94082963 ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short 
This patch updates csum_ipv6_magic so that it correctly recognizes that
protocol is a unsigned 8 bit value.

This will allow us to better understand what limitations may or may not be
present in how we handle the data.  For example there are a number of
places that call htonl on the protocol value.  This is likely not necessary
and can be replaced with a multiplication by ntohl(1) which will be
converted to a shift by the compiler.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-13 23:55:13 -04:00
Alexander Duyck
01cfbad79a ipv4: Update parameters for csum_tcpudp_magic to their original types 
This patch updates all instances of csum_tcpudp_magic and
csum_tcpudp_nofold to reflect the types that are usually used as the source
inputs.  For example the protocol field is populated based on nexthdr which
is actually an unsigned 8 bit value.  The length is usually populated based
on skb->len which is an unsigned integer.

This addresses an issue in which the IPv6 function csum_ipv6_magic was
generating a checksum using the full 32b of skb->len while
csum_tcpudp_magic was only using the lower 16 bits.  As a result we could
run into issues when attempting to adjust the checksum as there was no
protocol agnostic way to update it.

With this change the value is still truncated as many architectures use
"(len + proto) << 8", however this truncation only occurs for values
greater than 16776960 in length and as such is unlikely to occur as we stop
the inner headers at ~64K in size.

I did have to make a few minor changes in the arm, mn10300, nios2, and
score versions of the function in order to support these changes as they
were either using things such as an OR to combine the protocol and length,
or were using ntohs to convert the length which would have truncated the
value.

I also updated a few spots in terms of whitespace and type differences for
the addresses.  Most of this was just to make sure all of the definitions
were in sync going forward.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-13 23:55:13 -04:00
Masahiro Yamada
2ef7d5f342 ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus" 
The compatible string "simple-bus" is well defined in ePAPR, while
I see no documentation for the "arm,amba-bus" arnywhere in ePAPR or
Documentation/devicetree/.

DT is also used by other projects than Linux kernel.  It is not a
good idea to rely on such an unofficial binding.

This commit
  - replaces "arm,amba-bus" with "simple-bus"
  - drops "arm,amba-bus" where it is used along with "simple-bus"

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-12 17:40:34 -08:00
Olof Johansson
c7e1d89b34 Samsung Exynos ARM64 improvements for v4.6: 
1. Remove separate ARCH_EXYNOS7 symbol and consolidate it into
    one ARCH_EXYNOS.
    This depends on clk tree: removal of last presence of ARCH_EXYNOS7.
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Merge tag 'samsung-soc64-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/arm64

Samsung Exynos ARM64 improvements for v4.6:
1. Remove separate ARCH_EXYNOS7 symbol and consolidate it into
   one ARCH_EXYNOS.

This depends on clk tree: removal of last presence of ARCH_EXYNOS7.

* tag 'samsung-soc64-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into ARCH_EXYNOS
  clk: samsung: Don't build ARMv8 clock drivers on ARMv7
  clk: samsung: Enable COMPILE_TEST for Samsung clocks
  clk: Move vendor's Kconfig into CCF menu section
  clk: mediatek: Fix memory leak on clock init fail
  clk: move the common clock's to_clk_*(_hw) macros to clk-provider.h
  clk: xgene: Remove return from void function
  clk: xgene: Add SoC and PMD PLL clocks with v2 hardware
  Documentation: Update APM X-Gene clock binding for v2 hardware
  clk: s2mps11: remove redundant code
  clk: s2mps11: remove redundant static variables declaration
  clk: s2mps11: allocate only one structure for clock init
  clk: s2mps11: merge two for loops in one
  clk-divider: make sure read-only dividers do not write to their register
  clk: tango4: rename ARCH_TANGOX to ARCH_TANGO
  clk: scpi: Fix checking return value of platform_device_register_simple()
  clk: mvebu: Mark ioremapped memory as __iomem

Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-12 17:13:34 -08:00
Olof Johansson
2a993a587e Samsung Exynos (and older platforms) improvements for v4.6: 
1. Split out Exynos PMU driver implementation from arm/mach-exynos
    to the drivers/soc/samsung which will allow re-use of it on ARM64.
 2. Use generic DT cpufreq driver on Exynos542x/5800.
 3. Minor cleanups.
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Merge tag 'samsung-soc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/soc

Samsung Exynos (and older platforms) improvements for v4.6:
1. Split out Exynos PMU driver implementation from arm/mach-exynos
   to the drivers/soc/samsung which will allow re-use of it on ARM64.
2. Use generic DT cpufreq driver on Exynos542x/5800.
3. Minor cleanups.

* tag 'samsung-soc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: s3c24xx: Avoid warning for inb/outb
  ARM: SAMSUNG: Remove unused register offset definition
  ARM: EXYNOS: Cleanup header files inclusion
  drivers: soc: samsung: Enable COMPILE_TEST
  MAINTAINERS: Add maintainers entry for drivers/soc/samsung
  drivers: soc: Add support for Exynos PMU driver
  ARM: EXYNOS: Split up exynos5420 SoC specific PMU data
  ARM: EXYNOS: Split up exynos5250 SoC specific PMU data
  ARM: EXYNOS: Split up exynos4 SoC specific PMU data
  ARM: EXYNOS: Split up exynos3250 SoC specific PMU data
  ARM: EXYNOS: Move pmu specific headers under "linux/soc/samsung"
  ARM: EXYNOS: Correct header comment in Kconfig file
  ARM: EXYNOS: Use generic cpufreq driver for Exynos5422/5800
  ARM: EXYNOS: Use generic cpufreq driver for Exynos5420
  ARM: s3c64xx: use "depends on" instead of "if" after prompt
  ARM: plat-samsung: use to_platform_device()
  ARM: EXYNOS: Code cleanup in map.h
  ARM: EXYNOS: Remove unused static mapping of CMU for exynos5

Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-12 17:10:20 -08:00
Krzysztof Halasa
88e9da9a2a CNS3xxx: Fix PCI cns3xxx_write_config() 
The "where" offset was added twice, fix it.

Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Fixes: 498a92d425 ("ARM: cns3xxx: pci: avoid potential stack overflow")
Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-12 17:02:06 -08:00
Lars Persson
b2af8e58a0 ARM: dts: artpec: dual-license on artpec6.dtsi 
Relaxed the license on the dtsi to permit use in other projects.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-12 16:15:47 -08:00
Linus Walleij
7ad86d612b ARM: dts: ux500: add synaptics RMI4 for Ux500 TVK DT 
This adds the Synaptics RMI4 touchscreen to the Ux500 TVK
user interface board. Tested on the U8500 HREFv60plus with
the TVK UIB.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-12 16:15:46 -08:00
Linus Torvalds
2a4fb270da ARM: SoC fixes 
Two more fixes for 4.5:
 
  - One is a fix for OMAP that is urgently needed to avoid DRA7xx chips from
    premature aging, by always keeping the Ethernet clock enabled.
 
  - The other solves a I/O memory layout issue on Armada, where SROM and PCI
    memory windows were conflicting in some configurations.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Two more fixes for 4.5:

   - One is a fix for OMAP that is urgently needed to avoid DRA7xx chips
     from premature aging, by always keeping the Ethernet clock enabled.

   - The other solves a I/O memory layout issue on Armada, where SROM
     and PCI memory windows were conflicting in some configurations"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
 2016-03-11 12:35:54 -08:00
Thomas Petazzoni
d7d5a43c0d ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window 
When the Crypto SRAM mappings were added to the Device Tree files
describing the Armada XP boards in commit c466d997bb ("ARM: mvebu:
define crypto SRAM ranges for all armada-xp boards"), the fact that
those mappings were overlaping with the PCIe memory aperture was
overlooked. Due to this, we currently have for all Armada XP platforms
a situation that looks like this:

Memory mapping on Armada XP boards with internal registers at
0xf1000000:

 - 0x00000000 -> 0xf0000000	3.75G 	RAM
 - 0xf0000000 -> 0xf1000000	16M	NOR flashes (AXP GP / AXP DB)
 - 0xf1000000 -> 0xf1100000	1M	internal registers
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory aperture
 - 0xf8100000 -> 0xf8110000	64KB	Crypto SRAM #0	=> OVERLAPS WITH PCIE !
 - 0xf8110000 -> 0xf8120000	64KB	Crypto SRAM #1	=> OVERLAPS WITH PCIE !
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O aperture
 - 0xfff0000  -> 0xffffffff	1M	BootROM

The overlap means that when PCIe devices are added, depending on their
memory window needs, they might or might not be mapped into the
physical address space. Indeed, they will not be mapped if the area
allocated in the PCIe memory aperture by the PCI core overlaps with
one of the Crypto SRAM. Typically, a Intel IGB PCIe NIC that needs 8MB
of PCIe memory will see its PCIe memory window allocated from
0xf80000000 for 8MB, which overlaps with the Crypto SRAM windows. Due
to this, the PCIe window is not created, and any attempt to access the
PCIe window makes the kernel explode:

[    3.302213] igb: Copyright (c) 2007-2014 Intel Corporation.
[    3.307841] pci 0000:00:09.0: enabling device (0140 -> 0143)
[    3.313539] mvebu_mbus: cannot add window '4:f8', conflicts with another window
[    3.320870] mvebu-pcie soc:pcie-controller: Could not create MBus window at [mem 0xf8000000-0xf87fffff]: -22
[    3.330811] Unhandled fault: external abort on non-linefetch (0x1008) at 0xf08c0018

This problem does not occur on Armada 370 boards, because we use the
following memory mapping (for boards that have internal registers at
0xf1000000):

 - 0x00000000 -> 0xf0000000	3.75G 	RAM
 - 0xf0000000 -> 0xf1000000	16M	NOR flashes (AXP GP / AXP DB)
 - 0xf1000000 -> 0xf1100000	1M	internal registers
 - 0xf1100000 -> 0xf1110000	64KB	Crypto SRAM #0 => OK !
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O
 - 0xfff0000  -> 0xffffffff	1M	BootROM

Obviously, the solution is to align the location of the Crypto SRAM
mappings of Armada XP to be similar with the ones on Armada 370, i.e
have them between the "internal registers" area and the beginning of
the PCIe aperture.

However, we have a special case with the OpenBlocks AX3-4 platform,
which has a 128 MB NOR flash. Currently, this NOR flash is mapped from
0xf0000000 to 0xf8000000. This is possible because on OpenBlocks
AX3-4, the internal registers are not at 0xf1000000. And this explains
why the Crypto SRAM mappings were not configured at the same place on
Armada XP.

Hence, the solution is two-fold:

 (1) Move the NOR flash mapping on Armada XP OpenBlocks AX3-4 from
     0xe8000000 to 0xf0000000. This frees the 0xf0000000 ->
     0xf80000000 space.

 (2) Move the Crypto SRAM mappings on Armada XP to be similar to
     Armada 370 (except of course that Armada XP has two Crypto SRAM
     and not one).

After this patch, the memory mapping on Armada XP boards with
registers at 0xf1 is:

 - 0x00000000 -> 0xf0000000	3.75G 	RAM
 - 0xf0000000 -> 0xf1000000	16M	NOR flashes (AXP GP / AXP DB)
 - 0xf1000000 -> 0xf1100000	1M	internal registers
 - 0xf1100000 -> 0xf1110000	64KB	Crypto SRAM #0
 - 0xf1110000 -> 0xf1120000	64KB	Crypto SRAM #1
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O
 - 0xfff0000  -> 0xffffffff	1M	BootROM

And the memory mapping for the special case of the OpenBlocks AX3-4
(internal registers at 0xd0000000, NOR of 128 MB):

 - 0x00000000 -> 0xc0000000	3G 	RAM
 - 0xd0000000 -> 0xd1000000	1M	internal registers
 - 0xe800000  -> 0xf0000000	128M	NOR flash
 - 0xf1100000 -> 0xf1110000	64KB	Crypto SRAM #0
 - 0xf1110000 -> 0xf1120000	64KB	Crypto SRAM #1
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O
 - 0xfff0000  -> 0xffffffff	1M	BootROM

Fixes: c466d997bb ("ARM: mvebu: define crypto SRAM ranges for all armada-xp boards")
Reported-by: Phil Sutter <phil@nwl.cc>
Cc: Phil Sutter <phil@nwl.cc>
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-11 11:49:55 -08:00
Linus Walleij
cc998d8bc7 Linux 4.5-rc5 
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Merge tag 'v4.5-rc5' into devel

Linux 4.5-rc5
 2016-03-10 09:29:25 +07:00
Olof Johansson
1dea581f86 ARM: OMAP2+: critical DRA7xx fix for v4.5-rc 
Force the DRA7xx Ethernet internal clock source to stay enabled
 per TI erratum i877:
 
 http://www.ti.com/lit/er/sprz429h/sprz429h.pdf
 
 Otherwise, if the Ethernet internal clock source is disabled, the
 chip will age prematurely, and the RGMII I/O timing will soon
 fail to meet the delay time and skew specifications for 1000Mbps
 Ethernet.
 
 This fix should go in as soon as possible.
 
 Basic build, boot, and PM test results are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/
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Merge tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

ARM: OMAP2+: critical DRA7xx fix for v4.5-rc

Force the DRA7xx Ethernet internal clock source to stay enabled
per TI erratum i877:

http://www.ti.com/lit/er/sprz429h/sprz429h.pdf

Otherwise, if the Ethernet internal clock source is disabled, the
chip will age prematurely, and the RGMII I/O timing will soon
fail to meet the delay time and skew specifications for 1000Mbps
Ethernet.

This fix should go in as soon as possible.

Basic build, boot, and PM test results are available here:

http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/

* tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property

Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-03-09 14:15:31 -08:00
Luis R. Rodriguez
f6e45661f9 dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc() 
Rename dma_*_writecombine() to dma_*_wc(), so that the naming
is coherent across the various write-combining APIs. Keep the
old names for compatibility for a while, these can be removed
at a later time. A guard is left to enable backporting of the
rename, and later remove of the old mapping defines seemlessly.

Build tested successfully with allmodconfig.

The following Coccinelle SmPL patch was used for this simple
transformation:

@ rename_dma_alloc_writecombine @
expression dev, size, dma_addr, gfp;
@@

-dma_alloc_writecombine(dev, size, dma_addr, gfp)
+dma_alloc_wc(dev, size, dma_addr, gfp)

@ rename_dma_free_writecombine @
expression dev, size, cpu_addr, dma_addr;
@@

-dma_free_writecombine(dev, size, cpu_addr, dma_addr)
+dma_free_wc(dev, size, cpu_addr, dma_addr)

@ rename_dma_mmap_writecombine @
expression dev, vma, cpu_addr, dma_addr, size;
@@

-dma_mmap_writecombine(dev, vma, cpu_addr, dma_addr, size)
+dma_mmap_wc(dev, vma, cpu_addr, dma_addr, size)

We also keep the old names as compatibility helpers, and
guard against their definition to make backporting easier.

Generated-by: Coccinelle SmPL
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: airlied@linux.ie
Cc: akpm@linux-foundation.org
Cc: benh@kernel.crashing.org
Cc: bhelgaas@google.com
Cc: bp@suse.de
Cc: dan.j.williams@intel.com
Cc: daniel.vetter@ffwll.ch
Cc: dhowells@redhat.com
Cc: julia.lawall@lip6.fr
Cc: konrad.wilk@oracle.com
Cc: linux-fbdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: luto@amacapital.net
Cc: mst@redhat.com
Cc: tomi.valkeinen@ti.com
Cc: toshi.kani@hp.com
Cc: vinod.koul@intel.com
Cc: xen-devel@lists.xensource.com
Link: http://lkml.kernel.org/r/1453516462-4844-1-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2016-03-09 14:57:51 +01:00
Linus Walleij
0bae2f1732 Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel 2016-03-09 17:40:37 +07:00
Bogicevic Sasa
5f8fc43217 PCI: Include pci/pcie/Kconfig directly from pci/Kconfig 
Include pci/pcie/Kconfig directly from pci/Kconfig, so arches don't
have to source both pci/Kconfig and pci/pcie/Kconfig.

Note that this effectively adds pci/pcie/Kconfig to the following
arches, because they already sourced drivers/pci/Kconfig but they
previously did not source drivers/pci/pcie/Kconfig:

  alpha
  avr32
  blackfin
  frv
  m32r
  m68k
  microblaze
  mn10300
  parisc
  sparc
  unicore32
  xtensa

[bhelgaas: changelog, source pci/pcie/Kconfig at top of pci/Kconfig, whitespace]
Signed-off-by: Sasa Bogicevic <brutallesale@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2016-03-08 14:36:48 -06:00
David S. Miller
810813c47a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Several cases of overlapping changes, as well as one instance
(vxlan) of a bug fix in 'net' overlapping with code movement
in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-08 12:34:12 -05:00
Ingo Molnar
fe36d8912c Merge branch 'linus' into irq/core, to pick up fixes 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2016-03-08 12:26:07 +01:00
Christoph Hellwig
bc4b024a8b PCI: Move pci_dma_* helpers to common code 
For a long time all architectures implement the pci_dma_* functions using
the generic DMA API, and they all use the same header to do so.

Move this header, pci-dma-compat.h, to include/linux and include it from
the generic pci.h instead of having each arch duplicate this include.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2016-03-07 10:40:02 -06:00
Mugunthan V N
0f514e6907 ARM: dts: dra7: do not gate cpsw clock due to errata i877 
Errata id: i877

Description:
------------
The RGMII 1000 Mbps Transmit timing is based on the output clock
(rgmiin_txc) being driven relative to the rising edge of an internal
clock and the output control/data (rgmiin_txctl/txd) being driven relative
to the falling edge of an internal clock source. If the internal clock
source is allowed to be static low (i.e., disabled) for an extended period
of time then when the clock is actually enabled the timing delta between
the rising edge and falling edge can change over the lifetime of the
device. This can result in the device switching characteristics degrading
over time, and eventually failing to meet the Data Manual Delay Time/Skew
specs.
To maintain RGMII 1000 Mbps IO Timings, SW should minimize the
duration that the Ethernet internal clock source is disabled. Note that
the device reset state for the Ethernet clock is "disabled".
Other RGMII modes (10 Mbps, 100Mbps) are not affected

Workaround:
-----------
If the SoC Ethernet interface(s) are used in RGMII mode at 1000 Mbps,
SW should minimize the time the Ethernet internal clock source is disabled
to a maximum of 200 hours in a device life cycle. This is done by enabling
the clock as early as possible in IPL (QNX) or SPL/u-boot (Linux/Android)
by setting the register CM_GMAC_CLKSTCTRL[1:0]CLKTRCTRL = 0x2:SW_WKUP.

So, do not allow to gate the cpsw clocks using ti,no-idle property in
cpsw node assuming 1000 Mbps is being used all the time. If someone does
not need 1000 Mbps and wants to gate clocks to cpsw, this property needs
to be deleted in their respective board files.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
 2016-03-07 01:41:22 -07:00
Lokesh Vutla
2e18f5a1bc ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property 
Introduce a dt property, ti,no-idle, that prevents an IP to idle at any
point. This is to handle Errata i877, which tells that GMAC clocks
cannot be disabled.

Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
 2016-03-07 01:41:21 -07:00
Linus Torvalds
d55e08c844 ARM: SoC fixes 
Tiny fixes branch this week, in fact only one patch.
 
 Turns out the USB support for a Renesas board was developed on a pre-release
 board that ended up being changed before shipping. To avoid breakage on those
 boards, and avoid confusion, it's a reasonable idea to patch now instead of
 later. There are no known users of the pre-release variant any more.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fix from Olof Johansson:
 "Tiny fixes branch this week, in fact only one patch.

  Turns out the USB support for a Renesas board was developed on a
  pre-release board that ended up being changed before shipping.  To
  avoid breakage on those boards, and avoid confusion, it's a reasonable
  idea to patch now instead of later.  There are no known users of the
  pre-release variant any more"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: porter: remove enable prop from HS-USB device node
 2016-03-06 14:14:54 -08:00
Linus Torvalds
dd273a8071 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 
Pull ARM fixes from Russell King:
 "Just two ARM fixes this time: one to fix the hyp-stub for older ARM
  CPUs, and another to fix the set_memory_xx() permission functions to
  deal with zero sizes correctly"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8544/1: set_memory_xx fixes
  ARM: 8534/1: virt: fix hyp-stub build for pre-ARMv7 CPUs
 2016-03-06 13:51:27 -08:00
Sanchayan Maity
0aa8a99680 ARM: dts: vfxxx: Add iio_hwmon node for ADC temperature channel 
Add iio-hwmon node to expose the temperature channel on Vybrid as
hardware monitor device using the iio_hwmon driver.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
 2016-03-05 06:25:34 -08:00
Sanchayan Maity
0b452ccca6 ARM: dts: Change iio_hwmon nodes to use hypen in node names 
Change iio_hwmon nodes to use hypen in node names instead of
underscore.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
 2016-03-05 06:25:34 -08:00
Russell King
1b3bf84797 Merge branches 'amba', 'fixes', 'misc' and 'tauros2' into for-next 2016-03-04 23:36:02 +00:00
Rabin Vincent
b426867612 ARM: 8546/1: dma-mapping: refactor to fix coherent+cma+gfp=0 
Given a device which uses arm_coherent_dma_ops and on which
dev_get_cma_area(dev) returns non-NULL, the following usage of the DMA
API with gfp=0 results in memory corruption and a memory leak.

 p = dma_alloc_coherent(dev, sz, &dma, 0);
 if (p)
 	dma_free_coherent(dev, sz, p, dma);

The memory leak is because the alloc allocates using
__alloc_simple_buffer() but the free attempts
dma_release_from_contiguous() which does not do free anything since the
page is not in the CMA area.

The memory corruption is because the free calls __dma_remap() on a page
which is backed by only first level page tables.  The
apply_to_page_range() + __dma_update_pte() loop ends up interpreting the
section mapping as an addresses to a second level page table and writing
the new PTE to memory which is not used by page tables.

We don't have access to the GFP flags used for allocation in the free
function.  Fix this by adding allocator backends and using this
information in the free function so that we always use the correct
release routine.

Fixes: 21caf3a7 ("ARM: 8398/1: arm DMA: Fix allocation from CMA for coherent DMA")
Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2016-03-04 23:35:17 +00:00
Rabin Vincent
19e6e5e539 ARM: 8547/1: dma-mapping: store buffer information 
Keep a list of allocated DMA buffers so that we can store metadata in
alloc() which we later need in free().

Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2016-03-04 23:35:17 +00:00
Mika Penttilä
f474c8c857 ARM: 8544/1: set_memory_xx fixes 
Allow zero size updates. This makes set_memory_xx() consistent with x86, s390 and arm64 and makes apply_to_page_range() not to BUG() when loading modules.

Signed-off-by: Mika Penttilä mika.penttila@nextfour.com
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2016-03-04 23:32:45 +00:00
Arnd Bergmann
c5418a0b98 usb: gadget: pxa25x_udc: move register definitions from arch 
ixp4xx and pxa25x both use this driver and provide a slightly
different set of register definitions for it. Aside from that,
the definition in the ixp4xx-regs.h header conflicts with the
on in the pxa27x device driver when compile-testing that:

In file included from ../drivers/usb/gadget/udc/pxa27x_udc.c:37:0:
../drivers/usb/gadget/udc/pxa27x_udc.h:26:0: warning: "UDCCR" redefined
 #define UDCCR  0x0000  /* UDC Control Register */
 ^
In file included from ../arch/arm/mach-ixp4xx/include/mach/hardware.h:27:0,
                 from ../arch/arm/mach-ixp4xx/include/mach/io.h:18,
                 from ../arch/arm/include/asm/io.h:194,
                 from ../include/linux/io.h:25,
                 from ../include/linux/irq.h:24,
                 from ../drivers/usb/gadget/udc/pxa27x_udc.c:23:
../arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h:415:0: note: this is the location of the previous definition
 #define UDCCR  IXP4XX_USB_REG(IXP4XX_USB_BASE_VIRT+0x0000)

This addresses both issues by moving all the definitions into the
pxa25x_udc driver itself. It turns out the only difference between
them was 'UDCCS_IO_ROF', and that could well be a mistake when it
was incorrectly copied from pxa25x to ixp4xx.

Acked-by: Krzysztof Halasa <khalasa@piap.pl>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
 2016-03-04 15:14:28 +02:00
Ingo Molnar
bc94b99636 Linux 4.5-rc6 
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Merge tag 'v4.5-rc6' into core/resources, to resolve conflict

Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2016-03-04 12:12:08 +01:00
Linus Torvalds
c2687cf950 * ARM/MIPS: Fixes for ioctls when copy_from_user returns nonzero 
* x86: Small fix for Skylake TSC scaling
 * x86: Improved fix for last week's missed hardware breakpoint bug
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 - ARM/MIPS: Fixes for ioctls when copy_from_user returns nonzero
 - x86: Small fix for Skylake TSC scaling
 - x86: Improved fix for last week's missed hardware breakpoint bug

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: x86: Update tsc multiplier on change.
  mips/kvm: fix ioctl error handling
  arm/arm64: KVM: Fix ioctl error handling
  KVM: x86: fix root cause for missed hardware breakpoints
 2016-03-03 11:54:56 -08:00
Dmitry Torokhov
a9e340dce3 Input: rotary_encoder - move away from platform data structure 
Drop support for platform data passed via a C-structure and switch to
device properties instead, which should make the driver compatible with all
platforms: OF, ACPI and static boards. Static boards should use property
sets to communicate device parameters to the driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 2016-03-02 15:48:05 -08:00
Arnd Bergmann
0d8ec17ca3 Highlights: 
-----------
  - Add a new stm32f469 SoC
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Merge tag 'stm32-soc-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32 into next/soc

Merge "STM32 SoC updates for v4.6 #2" from Maxime Coquelin:

Highlights:
-----------
 - Add a new stm32f469 SoC

* tag 'stm32-soc-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32:
  ARM: stm32: Identify a new SoC - STM32F469
 2016-03-02 23:36:17 +01:00
Arnd Bergmann
3fcb230d14 SoC related changes for omaps for v4.6 merge window: 
- Enable runtime revision detection for dra7 to avoid multiple dts
   files for various variants
 
 - Add dma_slave_map for omap1/2/3 legacy mode booting
 
 - Add RTC interconnect target data for ti81xx and am43x
 
 - Add custom reset handler for PCIeSS
 
 - Add eDMA interconnect target data for dra7
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Merge tag 'omap-for-v4.6/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Merge "omap soc changes for v4.6 merge window" from Tony Lindgren:

SoC related changes for omaps for v4.6 merge window:

- Enable runtime revision detection for dra7 to avoid multiple dts
  files for various variants

- Add dma_slave_map for omap1/2/3 legacy mode booting

- Add RTC interconnect target data for ti81xx and am43x

- Add custom reset handler for PCIeSS

- Add eDMA interconnect target data for dra7

* tag 'omap-for-v4.6/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
  ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
  ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
  ARM: OMAP2+: DMA: Provide dma_slave_map to omap-dma for legacy boot
  ARM: OMAP1: DMA: Provide dma_slave_map to omap-dma
  ARM: OMAP: DRA7: Make use of omap_revision information for soc_is* calls
  ARM: AM43XX: hwmod: Add rtc hwmod
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ARM: OMAP2+: hwmod data: Add SSI data for omap36xx
 2016-03-02 23:32:24 +01:00
Arnd Bergmann
f3a186fbfd The i.MX SoC update for 4.6: 
- Enable big endian mode support for i.MX platform
 - Add support for i.MX6QP SoC which is the latest i.MX6 family addition
 - Add basic suspend/resume support for i.MX25
 - A couple of i.MX7D support updates
 - A few random code cleanups
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Merge tag 'imx-soc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

Merge "i.MX SoC update for 4.6" from Shawn Guo:

- Enable big endian mode support for i.MX platform
- Add support for i.MX6QP SoC which is the latest i.MX6 family addition
- Add basic suspend/resume support for i.MX25
- A couple of i.MX7D support updates
- A few random code cleanups

* tag 'imx-soc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: Make reset_control_ops const
  ARM: imx: Do L2 errata only if the L2 cache isn't enabled
  ARM: imx: select ARM_CPU_SUSPEND only for imx6
  ARM: mx25: Add basic suspend/resume support
  ARM: imx: Add msl code support for imx6qp
  ARM: imx: enable big endian mode
  ARM: imx: use endian-safe readl/readw/writel/writew
  ARM: imx7d: correct chip version information
  ARM: imx: select HAVE_ARM_ARCH_TIMER if selected i.MX7D
  ARM: imx6: fix cleanup path in imx6q_suspend_init()
 2016-03-02 23:30:17 +01:00
Arnd Bergmann
452d9a0feb Fixes for omaps for v4.6 merge window that are not urgent 
for the v4.5-rc cycle:
 
 - Add back optimized cpuidle parameters for 34xx that were
   incorrecly removed earlier with cpuidle cleanup
 
 - Fix SSI for omap36xx to get modem working on N950/N9
 
 - A series of omap hwmod fixes via Paul Walmsley <paul@pwsan.com>
   to fix SSI for omap36xx for modem on N950/N9, fix for
   OCP2SCP sysconfig idle mode, and reset data for PCIe on
   dra7
 
 - Fix out of range register access for omap3 control module
   if syscon max_register is initialized like v4.6 will be
   doing
 
 - Fix l4_ls interconnect clocks for 81xx, it should always
   be sysclk6_ck
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Merge tag 'omap-for-v4.6/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "omap non-urgent fixes for v4.6 merge window" from Tony Lindgren:

Fixes for omaps for v4.6 merge window that are not urgent
for the v4.5-rc cycle:

- Add back optimized cpuidle parameters for 34xx that were
  incorrecly removed earlier with cpuidle cleanup

- Fix SSI for omap36xx to get modem working on N950/N9

- A series of omap hwmod fixes via Paul Walmsley <paul@pwsan.com>
  to fix SSI for omap36xx for modem on N950/N9, fix for
  OCP2SCP sysconfig idle mode, and reset data for PCIe on
  dra7

- Fix out of range register access for omap3 control module
  if syscon max_register is initialized like v4.6 will be
  doing

- Fix l4_ls interconnect clocks for 81xx, it should always
  be sysclk6_ck

* tag 'omap-for-v4.6/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix hwmod clock for l4_ls
  ARM: OMAP2+: Fix out of range register access with syscon_config.max_register
  ARM: OMAP3: Add cpuidle parameters table for omap3430
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ARM: OMAP2+: hwmod data: Add SSI data for omap36xx
 2016-03-02 23:28:38 +01:00
Arnd Bergmann
f3c87e99f4 Second Round of Renesas ARM Based SoC DT Fixes for v4.5 
* remove enable prop from HS-USB device node on porter board
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Merge tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Second Round of Renesas ARM Based SoC DT Fixes for v4.5" from Simon Horman:

* remove enable prop from HS-USB device node on porter board

* tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: dts: porter: remove enable prop from HS-USB device node
 2016-03-02 23:24:33 +01:00
Arnd Bergmann
d36694b659 Second Round of Renesas ARM Based SoC DT Fixes for v4.5 
* remove enable prop from HS-USB device node on porter board
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Merge tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt

Merge "Second Round of Renesas ARM Based SoC DT Fixes for v4.5" from Simon Horman:

* remove enable prop from HS-USB device node on porter board

* tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: dts: porter: remove enable prop from HS-USB device node
 2016-03-02 23:23:22 +01:00
Arnd Bergmann
fa54ae137a Highlights: 
-----------
  - Enable GPIO led driver in stm32_defconfig
  - Introduce a config fragment to override RAM base address
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Merge tag 'stm32-defconfig-for-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32 into next/defconfig

Merge "STM32 defconfig updates for v4.6 #1" from Maxime Coquelin:

Highlights:
-----------
 - Enable GPIO led driver in stm32_defconfig
 - Introduce a config fragment to override RAM base address

* tag 'stm32-defconfig-for-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32:
  ARM: configs: Add new config fragment to change RAM start point
  ARM: config: Enable GPIO Led driver in stm32_defconfig
 2016-03-02 23:20:32 +01:00
Arnd Bergmann
4a6f791c35 Defconfig changes for omap2plus_defconfig and multi_v7_defconfig 
for v4.6 merge window:
 
 - Enable IOMMU and omap3isp so we can enable TVP5150/1 video
   decoder
 
 - Enable at24 eeprom for revision detection on beagle-x15
 
 - Enable LP872x regulator for both omap2plus_defconfig and
   multi_v7_defconfig as it's needed at least by LG Optimus
   Black
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Merge tag 'omap-for-v4.6/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/defconfig

Merge "omap defconfig changes for v4.6 merge window" from Tony Lindgren:

Defconfig changes for omap2plus_defconfig and multi_v7_defconfig
for v4.6 merge window:

- Enable IOMMU and omap3isp so we can enable TVP5150/1 video
  decoder

- Enable at24 eeprom for revision detection on beagle-x15

- Enable LP872x regulator for both omap2plus_defconfig and
  multi_v7_defconfig as it's needed at least by LG Optimus
  Black

* tag 'omap-for-v4.6/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: multi_v7_defconfig: Enable LP872x regulator support
  ARM: omap2plus_defconfig: Enable LP872x regulator support
  ARM: omap2plus_defconfig: Enable AT24 eeprom
  ARM: omap2plus_defconfig: Enable TI TVP5150 video decoder support
  ARM: omap2plus_defconfig: Enable ISP support and dependencies
  ARM: omap2plus_defconfig: Enable OMAP IOMMU support
 2016-03-02 23:19:17 +01:00
Arnd Bergmann
620a60075b The i.MX defconfig update for 4.6: 
- Enable i.MX25 Touchscreen controller and ADC support
 - Enable NVMEM OCOTP driver support
 - Clean up mxs_defconfig and imx_v4_v5_defconfig
 - Enable initramfs support
 - Enable PSCI, SAHARA and more Vybrid driver support
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Merge tag 'imx-defconfig-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/defconfig

Merge "i.MX defconfig update for 4.6" from Shawn Guo:

- Enable i.MX25 Touchscreen controller and ADC support
- Enable NVMEM OCOTP driver support
- Clean up mxs_defconfig and imx_v4_v5_defconfig
- Enable initramfs support
- Enable PSCI, SAHARA and more Vybrid driver support

* tag 'imx-defconfig-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx_v4_v5_defconfig: Enable initramfs support
  ARM: imx_v4_v5_defconfig: Cleanup imx_v4_v5_defconfig
  ARM: mxs_defconfig: Enable initramfs support
  ARM: mxs_defconfig: Cleanup mxs_defconfig
  ARM: imx_v6_v7_defconfig: enable useful configurations for Vybrid
  ARM: imx_v6_v7_defconfig: Select CONFIG_CRYPTO_DEV_SAHARA
  ARM: imx_v4_v5_defconfig: Add I.MX25 Touchscreen controller and ADC support.
  ARM: mxs_defconfig: Select CONFIG_NVMEM_MXS_OCOTP
  ARM: imx_v6_v7_defconfig: Select CONFIG_NVMEM_IMX_OCOTP
  ARM: imx_v6_v7_defconfig: enable psci default
 2016-03-02 23:18:02 +01:00
Arnd Bergmann
c88f7e6a52 ARM64 defconfig changes for Exynos based boards for v4.6: 
1. We want thermal for Exynos7 TMU unit to monitor the temperature.
 2. Enable the drivers for PMIC used on Exynos7-based Espresso board.
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Merge tag 'samsung-defconfig-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/arm64

Merge "ARM64 defconfig changes for Exynos based boards for v4.6" from Krzysztof Kozlowski:

1. We want thermal for Exynos7 TMU unit to monitor the temperature.
2. Enable the drivers for PMIC used on Exynos7-based Espresso board.

* tag 'samsung-defconfig-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: defconfig: Enable Samsung MFD and related configs
  arm64: defconfig: Enable exynos thermal config
  ARM: multi_v7_defconfig: Remove MAX77802 RTC Kconfig symbol
  ARM: exynos_defconfig: Remove MAX77802 RTC Kconfig symbol
  rtc: max77686: Cleanup and reduce dmesg output
  rtc: Remove Maxim 77802 driver
  rtc: max77686: Properly handle regmap_irq_get_virq() error code
  rtc: max77686: Fix unsupported year message
  rtc: max77686: Add max77802 support
  rtc: max77686: Add an indirection level to access RTC registers
  rtc: max77686: Use a driver data struct instead hard-coded values
  rtc: max77686: Use usleep_range() instead of msleep()
  rtc: max77686: Use ARRAY_SIZE() instead of current array length
  rtc: max77686: Fix max77686_rtc_read_alarm() return value
  ARM: exynos_defconfig: Enable s5p-secss driver
  ARM: exynos_defconfig: Enable NEON, accelerated crypto and cpufreq stats

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2016-03-02 23:15:48 +01:00
Arnd Bergmann
9c8add4c4a Second 4.6 DT series, all patches for sama5d2 and its Xplained board: 
- addition of the NAND flash node
 - addition of the dma properties for UART/USART nodes
 - one update of the sama5d2 Xplained phy node
 - addition of USB pinmux, button and leds
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Merge tag 'at91-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt

Merge "at91: dt for 4.6 #2" from Nicolas Ferre:

Second 4.6 DT series, all patches for sama5d2 and its Xplained board:
- addition of the NAND flash node
- addition of the dma properties for UART/USART nodes
- one update of the sama5d2 Xplained phy node
- addition of USB pinmux, button and leds

* tag 'at91-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: dts: at91: sama5d2 Xplained: add leds node
  ARM: dts: at91: sama5d2 Xplained: add user push button
  ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
  ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
  ARM: dts: at91: sama5d2: add dma properties to UART nodes
  ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
 2016-03-02 21:45:58 +01:00
Arnd Bergmann
e3c739e129 Highlights: 
-----------
  - Fix clock references in GPIO nodes
  - Add early support to stm32f469 MCU
  - Add USB HS support in host mdoe to stm32429-eval board
  - Add Ethernet support to stm32429-eval board
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Merge tag 'stm32-dt-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32 into next/dt

Merge "STM32 DT updates for v4.6 #2" from Maxime Coquelin:

Highlights:
-----------
 - Fix clock references in GPIO nodes
 - Add early support to stm32f469 MCU
 - Add USB HS support in host mdoe to stm32429-eval board
 - Add Ethernet support to stm32429-eval board

* tag 'stm32-dt-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32:
  ARM: dts: stm32f429: Enable Ethernet on Eval board
  ARM: dts: stm32f429: Add Ethernet support
  ARM: dts: stm32f429: Add system config bank node
  ARM: dts: stm32429i-eval: Add USB HS host mode support
  ARM: dts: stm32f429: Fix clocks referenced by GPIO banks
  ARM: stm32: Supply a DTS file for the STM32F469 Discovery board
 2016-03-02 21:44:10 +01:00
Arnd Bergmann
4615b4e0e6 Part 2 of device tree changes for omaps for v4.6 merge window: 
- A series of GPMC related interrupt changes from
   Rogeq Quadros <rogerq@ti.com> to prepare adding interrupt
   support to the NAND driver
 
 - Add RTC support for ti81xx
 
 - Correct LogicPD Torpedo mode description
 
 - Add basic support for LG Optimus Black phone in several
   patches by Paul Kocialkowski <contact@paulk.fr>
 
 - Change address-cells for dra7 for LPAE
 
 - Add TBCLK for PWMSS on dra7
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Merge tag 'omap-for-v4.6/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Pull "Part 2 of device tree changes for omaps for v4.6 merge window" from Tony Lindgren:

- A series of GPMC related interrupt changes from
  Rogeq Quadros <rogerq@ti.com> to prepare adding interrupt
  support to the NAND driver

- Add RTC support for ti81xx

- Correct LogicPD Torpedo mode description

- Add basic support for LG Optimus Black phone in several
  patches by Paul Kocialkowski <contact@paulk.fr>

- Change address-cells for dra7 for LPAE

- Add TBCLK for PWMSS on dra7

* tag 'omap-for-v4.6/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (21 commits)
  ARM: dts: omap3-sniper: TWL4030 keypad support
  Revert "ARM: dts: DRA7: Add dt nodes for PWMSS"
  ARM: dts: dm814x: dra62x: Disable wait pin monitoring for NAND
  ARM: dts: dm814x: dra62x: Fix NAND device nodes
  ARM: dts: DRA7: Add dt nodes for PWMSS
  ARM: dts: DRA7: Add TBCLK for PWMSS
  ARM: dts: DRA7: change address-cells and size-cells
  ARM: dts: omap3-sniper: USB OTG support
  ARM: dts: LG Optimus Black codename sniper basic support
  ARM: dts: dm3730-torpedo-devkit: Add "Wireless" to model
  ARM: dts: Add RTC entry for dm816x
  ARM: dts: Add RTC entry for dm814x and dra62x
  ARM: dts: omap3: Fix NAND device nodes
  ARM: dts: dm8168-evm: ARM: dts: Disable wait pin monitoring for NAND
  ARM: dts: dm816x: Fix NAND device nodes
  ARM: dts: am335x: Disable wait pin monitoring for NAND
  ARM: dts: am335x: Fix NAND device nodes
  ARM: dts: am437x: Disable wait pin monitoring for NAND
  ARM: dts: am437x: Fix NAND device nodes
  ARM: dts: dra7: Remove redundant nand property
  ...
 2016-03-02 21:27:03 +01:00
Arnd Bergmann
aae31813d3 The i.MX device tree updates for 4.6: 
- New i.MX6 board support: NXP/Freescale imx6qp boards, Advantech/GE,
   Uniwest evi, Engicam IMX6 Q7, Toradex Apalis SoM and Ixora carrier
   boards
 - Relicense vf610 dts files under GPLv2/X11
 - A patch series from Stefan updating Vybrid Colibri board support with
   PMU, regulators and other devices enabled
 - Correct PWM pinmux for Ventana boards and add more pinmux for GW54xx
 - Clean up imx6q-tbs2910 dts file and add SATA PHY configuration
 - A series from Russell cleaning up hummingboard dts files
 - A series from Lothar updating Ka-Ro i.MX28, i.MX53 and i.MX6 boards
   to use better audio codec frequency and display configurations
 - Clean up whitespaces in i.MX6UL pinctrl header and add more devices
   support for the SoC
 - Other random dts updates to enable various devices
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Merge tag 'imx-dt-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt2

Merge "i.MX device tree updates for 4.6" from Shawn Guo:

- New i.MX6 board support: NXP/Freescale imx6qp boards, Advantech/GE,
  Uniwest evi, Engicam IMX6 Q7, Toradex Apalis SoM and Ixora carrier
  boards
- Relicense vf610 dts files under GPLv2/X11
- A patch series from Stefan updating Vybrid Colibri board support with
  PMU, regulators and other devices enabled
- Correct PWM pinmux for Ventana boards and add more pinmux for GW54xx
- Clean up imx6q-tbs2910 dts file and add SATA PHY configuration
- A series from Russell cleaning up hummingboard dts files
- A series from Lothar updating Ka-Ro i.MX28, i.MX53 and i.MX6 boards
  to use better audio codec frequency and display configurations
- Clean up whitespaces in i.MX6UL pinctrl header and add more devices
  support for the SoC
- Other random dts updates to enable various devices

* tag 'imx-dt-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (75 commits)
  ARM: dts: imx53-qsb: Fix gpio button polarity
  ARM: dts: vfxxx: Add DAC node for Vybrid SoC
  ARM: dts: imx6q: add missing links between ipu2 and mipi dsi
  ARM: dts: imx: Add support for Advantech/GE B850v3
  ARM: dts: imx: Add support for Advantech/GE B650v3
  ARM: dts: imx: Add support for Advantech/GE B450v3
  ARM: dts: imx: Add support for Advantech/GE Bx50v3
  ARM: dts: imx: Add Advantech BA-16 Qseven module
  of: Add vendor prefix for General Electric Company
  of: Add vendor prefix for Advantech Corporation
  ARM: dts: imx35.dtsi: change the clock information for usb
  ARM: dts: imx25.dtsi: change the clock information for usb
  ARM: dts: imx6ul: add kpp support
  ARM: dts: imx6ul: add gpmi support
  ARM: dts: imx6ul: add lcdif support
  ARM: dts: imx6ul: add sai support
  ARM: dts: imx6ul: add flexcan support
  ARM: dts: imx6ul: add sdma support
  ARM: dts: imx6ul: add pwm[1-4] nodes
  ARM: dts: imx6ul: disable PWMs by default
  ...
 2016-03-02 21:24:07 +01:00