Commit Graph

46745 Commits

Author SHA1 Message Date
Linus Torvalds
f76d9c61d9 Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Three relatively small fixes for ARM:

   - Roger noticed that dma_max_pfn() was calculating the upper limit
     wrongly, by adding the PFN offset of memory twice.

   - A fix from Robin to correct parsing of MPIDR values when the
     address size is larger than one BE32 unit.

   - A fix from Srinivas to ensure that we do not rely on the boot
     loader (or previous Linux kernel) setting the translation table
     base register a certain way in the decompressor, which can lead to
     crashes"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7
  ARM: 8617/1: dma: fix dma_max_pfn()
  ARM: 8616/1: dt: Respect property size when parsing CPUs
2016-10-02 15:23:00 -07:00
Srinivas Ramana
117e5e9c4c ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7
If the bootloader uses the long descriptor format and jumps to
kernel decompressor code, TTBCR may not be in a right state.
Before enabling the MMU, it is required to clear the TTBCR.PD0
field to use TTBR0 for translation table walks.

The commit dbece45894 ("ARM: 7501/1: decompressor:
reset ttbcr for VMSA ARMv7 cores") does the reset of TTBCR.N, but
doesn't consider all the bits for the size of TTBCR.N.

Clear TTBCR.PD0 field and reset all the three bits of TTBCR.N to
indicate the use of TTBR0 and the correct base address width.

Fixes: dbece45894 ("ARM: 7501/1: decompressor: reset ttbcr for VMSA ARMv7 cores")
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-10-02 20:05:14 +01:00
Roger Quadros
d248220f04 ARM: 8617/1: dma: fix dma_max_pfn()
Since commit 6ce0d20016 ("ARM: dma: Use dma_pfn_offset for dma address translation"),
dma_to_pfn() already returns the PFN with the physical memory start offset
so we don't need to add it again.

This fixes USB mass storage lock-up problem on systems that can't do DMA
over the entire physical memory range (e.g.) Keystone 2 systems with 4GB RAM
can only do DMA over the first 2GB. [K2E-EVM].

What happens there is that without this patch SCSI layer sets a wrong
bounce buffer limit in scsi_calculate_bounce_limit() for the USB mass
storage device. dma_max_pfn() evaluates to 0x8fffff and bounce_limit
is set to 0x8fffff000 whereas maximum DMA'ble physical memory on Keystone 2
is 0x87fffffff. This results in non DMA'ble pages being given to the
USB controller and hence the lock-up.

NOTE: in the above case, USB-SCSI-device's dma_pfn_offset was showing as 0.
This should have really been 0x780000 as on K2e, LOWMEM_START is 0x80000000
and HIGHMEM_START is 0x800000000. DMA zone is 2GB so dma_max_pfn should be
0x87ffff. The incorrect dma_pfn_offset for the USB storage device is because
USB devices are not correctly inheriting the dma_pfn_offset from the
USB host controller. This will be fixed by a separate patch.

Fixes: 6ce0d20016 ("ARM: dma: Use dma_pfn_offset for dma address translation")
Cc: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-09-29 16:57:44 +01:00
Robin Murphy
ba6dea4f7c ARM: 8616/1: dt: Respect property size when parsing CPUs
Whilst MPIDR values themselves are less than 32 bits, it is still
perfectly valid for a DT to have #address-cells > 1 in the CPUs node,
resulting in the "reg" property having leading zero cell(s). In that
situation, the big-endian nature of the data conspires with the current
behaviour of only reading the first cell to cause the kernel to think
all CPUs have ID 0, and become resoundingly unhappy as a consequence.

Take the full property length into account when parsing CPUs so as to
be correct under any circumstances.

Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-09-29 16:57:43 +01:00
Linus Torvalds
7bb91e0673 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes a potential weakness in IPsec CBC IV generation, as well as
  a number of issues that arose out of an OOM crash on ARM with CTR-mode
  AES"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: arm64/aes-ctr - fix NULL dereference in tail processing
  crypto: arm/aes-ctr - fix NULL dereference in tail processing
  crypto: skcipher - Fix blkcipher walk OOM crash
  crypto: echainiv - Replace chaining with multiplication
2016-09-19 12:58:34 -07:00
Linus Torvalds
008f08d64a ARM: SoC fixes
Here are a couple of bugfixes for v4.8-rc. Most of them have
 actually been around for a while this time but for some reason
 didn't get applied early on. The shmobile regulator fix is the
 only one that isn't completely obvious.
 
 device tree changes:
 - archtimer interrupts must be level triggered (multiple platforms)
 - fix for USB and MMC clocks on STiH410
 - fix split DT repository in case of raspberry-pi 3
 - A new use of skeleton.dtsi on arm64 has crept in after that
   was removed.
 
 defconfig updates:
 - xilinx vdma has a new Kconfig symbol name
 - keystone requires CONFIG_NOP_USB_XCEIV since v4.8-rc1
 
 code fixes:
 - fix regulator quirk on shmobile
 - suspend-to-ram regression on EXYNOS
 
 maintainer updates:
 - Javier Martinez Canillas is now a reviewer for Samsung EXYNOS
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Here are a couple of bugfixes for v4.8-rc.

  Most of them have actually been around for a while this time but for
  some reason didn't get applied early on.  The shmobile regulator fix
  is the only one that isn't completely obvious.

  Device tree changes:
   - archtimer interrupts must be level triggered (multiple platforms)
   - fix for USB and MMC clocks on STiH410
   - fix split DT repository in case of raspberry-pi 3
   - a new use of skeleton.dtsi on arm64 has crept in after that was
     removed.

  defconfig updates:
   - xilinx vdma has a new Kconfig symbol name
   - keystone requires CONFIG_NOP_USB_XCEIV since v4.8-rc1

  Code fixes:
   - fix regulator quirk on shmobile
   - suspend-to-ram regression on EXYNOS

  Maintainer updates:
   - Javier Martinez Canillas is now a reviewer for Samsung EXYNOS"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: keystone: defconfig: Fix USB configuration
  arm64: dts: Fix broken architected timer interrupt trigger
  ARM: multi_v7_defconfig: update XILINX_VDMA
  ARM64: dts: bcm: Use a symlink to R-Pi dtsi files from arch=arm
  ARM: dts: Remove use of skeleton.dtsi from bcm283x.dtsi
  ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI
  ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)
  ARM: shmobile: fix regulator quirk for Gen2
  ARM: EXYNOS: Clear OF_POPULATED flag from PMU node in IRQ init callback
  MAINTAINERS: Add myself as reviewer for Samsung Exynos support
2016-09-16 12:15:41 -07:00
Linus Torvalds
cac4662a88 Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Most of this update are fixes primarily discovered from testing on the
  older StrongARM 1110 and PXA systems, as a result of recent interest
  from several people in these platforms:

   - Locomo interrupt handling incorrectly stores the handler data in
     the chip's private data slot: when Locomo is combined with an
     interrupt controller who's chip uses the chip private data, this
     leads to an oops.

   - SA1111 was missing a call to clk_disable() to clean up after a
     failed probe.

   - SA1111 and PCMCIA suspend/resume was broken:

     The PCMCIA "ds" layer was using the legacy bus suspend/resume
     methods, which the core PM code is no longer calling as a result of
     device_pm_check_callbacks() introduced in commit aa8e54b559
     ("PM / sleep: Go direct_complete if driver has no callbacks").

     SA1111 was broken due to changes to PCMCIA which makes PCMCIA
     suspend itself later than the SA1111 code expects, and resume
     before the SA1111 code has initialised access to the pcmcia
     sub-device.

   - the default SA1111 interrupt mask polarity got messed up when it
     was converted to use a dynamic interrupt base number for its
     interrupts.

   - fix platform_get_irq() error code propagation, which was causing
     problems on platforms where the interrupt may not be available at
      probe time in DT setups.

   - fix the lack of clock to PCMCIA code on PXA platforms, which was
     omitted in conversions of PXA to CCF.

   - fix an oops in the PXA PCMCIA code caused by a previous commit not
     realising that Lubbock is different from the rest of the PXA PCMCIA
     drivers.

   - ensure that SA1111 low-level PCMCIA drivers propagate their error
     codes to the main probe function, rather than the driver silently
     accepting a failure.

   - fix the sa11xx debugfs reporting of timing information, which
     always indicated zero due to the clock being a factor of 1000 out.

   - fix the polarity of the status change signal reported from the
     sockets.

  Lastly, one ARM specific commit from Stefan Agner fixing the LPAE
  cache attributes"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: pxa/lubbock: add pcmcia clock
  ARM: locomo: fix locomo irq handling
  ARM: 8612/1: LPAE: initialize cache policy correctly
  ARM: sa1111: fix missing clk_disable()
  ARM: sa1111: fix pcmcia suspend/resume
  ARM: sa1111: fix pcmcia interrupt mask polarity
  ARM: sa1111: fix error code propagation in sa1111_probe()
  pcmcia: lubbock: fix sockets configuration
  pcmcia: sa1111: fix propagation of lowlevel board init return code
  pcmcia: soc_common: fix SS_STSCHG polarity
  pcmcia: sa11xx_base: add units to the timing information
  pcmcia: sa11xx_base: fix reporting of timing information
  pcmcia: ds: fix suspend/resume
2016-09-16 12:08:13 -07:00
Arnd Bergmann
6408649115 1. A recent change in populating irqchip devices from Device Tree
broke Suspend to RAM on Exynos boards due to lack of probing of
    PMU (Power Management Unit) driver.  Multiple drivers attach to
    the PMU's DT node: irqchip, clock controller and PMU platform
    driver for handling suspend.  The new irqchip code marked the
    PMU's DT node as OF_POPULATED but we need to attach to this
    node also PMU platform driver.
 
 2. Add Javier as additional reviewer for Exynos patches.
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Merge tag 'samsung-fixes-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes

Pull "ARM: exynos: Fixes for v4.8, secound round" from Krzysztof Kozłowski:

1. A recent change in populating irqchip devices from Device Tree
   broke Suspend to RAM on Exynos boards due to lack of probing of
   PMU (Power Management Unit) driver.  Multiple drivers attach to
   the PMU's DT node: irqchip, clock controller and PMU platform
   driver for handling suspend.  The new irqchip code marked the
   PMU's DT node as OF_POPULATED but we need to attach to this
   node also PMU platform driver.

2. Add Javier as additional reviewer for Exynos patches.

* tag 'samsung-fixes-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: EXYNOS: Clear OF_POPULATED flag from PMU node in IRQ init callback
  MAINTAINERS: Add myself as reviewer for Samsung Exynos support
2016-09-16 16:29:48 +02:00
Roger Quadros
a6805884e2 ARM: keystone: defconfig: Fix USB configuration
Simply enabling CONFIG_KEYSTONE_USB_PHY doesn't work anymore
as it depends on CONFIG_NOP_USB_XCEIV. We need to enable
that as well.

This fixes USB on Keystone boards from v4.8-rc1 onwards.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-15 11:46:12 +02:00
Fabian Frederick
7ccb8e633c ARM: multi_v7_defconfig: update XILINX_VDMA
Commit fde57a7c44
("dmaengine: xilinx: Rename driver and config")

renamed config XILINX_VDMA to config XILINX_DMA
Update defconfig accordingly.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-14 22:40:59 +02:00
Linus Torvalds
b8f26e880c xen: regression fix for 4.8-rc6
- Fix SMP boot in arm guests.
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Merge tag 'for-linus-4.8b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen regression fix from David Vrabel:
 "Fix SMP boot in arm guests"

* tag 'for-linus-4.8b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  arm/xen: fix SMP guests boot
2016-09-14 08:42:51 -07:00
Vitaly Kuznetsov
de75abbe01 arm/xen: fix SMP guests boot
Commit 88e957d6e4 ("xen: introduce xen_vcpu_id mapping") broke SMP
ARM guests on Xen. When FIFO-based event channels are in use (this is
the default), evtchn_fifo_alloc_control_block() is called on
CPU_UP_PREPARE event and this happens before we set up xen_vcpu_id
mapping in xen_starting_cpu. Temporary fix the issue by setting direct
Linux CPU id <-> Xen vCPU id mapping for all possible CPUs at boot. We
don't currently support kexec/kdump on Xen/ARM so these ids always
match.

In future, we have several ways to solve the issue, e.g.:

- Eliminate all hypercalls from CPU_UP_PREPARE, do them from the
  starting CPU. This can probably be done for both x86 and ARM and, if
  done, will allow us to get Xen's idea of vCPU id from CPUID/MPIDR on
  the starting CPU directly, no messing with ACPI/device tree
  required.

- Save vCPU id information from ACPI/device tree on ARM and use it to
  initialize xen_vcpu_id mapping. This is the same trick we currently
  do on x86.

Reported-by: Julien Grall <julien.grall@arm.com>
Tested-by: Wei Chen <Wei.Chen@arm.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2016-09-14 14:39:13 +01:00
Ard Biesheuvel
f82e90b286 crypto: arm/aes-ctr - fix NULL dereference in tail processing
The AES-CTR glue code avoids calling into the blkcipher API for the
tail portion of the walk, by comparing the remainder of walk.nbytes
modulo AES_BLOCK_SIZE with the residual nbytes, and jumping straight
into the tail processing block if they are equal. This tail processing
block checks whether nbytes != 0, and does nothing otherwise.

However, in case of an allocation failure in the blkcipher layer, we
may enter this code with walk.nbytes == 0, while nbytes > 0. In this
case, we should not dereference the source and destination pointers,
since they may be NULL. So instead of checking for nbytes != 0, check
for (walk.nbytes % AES_BLOCK_SIZE) != 0, which implies the former in
non-error conditions.

Fixes: 86464859cc ("crypto: arm - AES in ECB/CBC/CTR/XTS modes using ARMv8 Crypto Extensions")
Cc: stable@vger.kernel.org
Reported-by: xiakaixu <xiakaixu@huawei.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-13 18:44:59 +08:00
Linus Torvalds
ac059c4fa7 * s390: nested virt fixes (new 4.8 feature)
* x86: fixes for 4.8 regressions
 * ARM: two small bugfixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 - s390: nested virt fixes (new 4.8 feature)
 - x86: fixes for 4.8 regressions
 - ARM: two small bugfixes

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm-arm: Unmap shadow pagetables properly
  x86, clock: Fix kvm guest tsc initialization
  arm: KVM: Fix idmap overlap detection when the kernel is idmap'ed
  KVM: lapic: adjust preemption timer correctly when goes TSC backward
  KVM: s390: vsie: fix riccbd
  KVM: s390: don't use current->thread.fpu.* when accessing registers
2016-09-12 14:30:14 -07:00
Russell King
1a57c286d8 ARM: pxa/lubbock: add pcmcia clock
Add the required PCMCIA clock for the SA1111 "1800" device.  This clock
is used to compute timing information for the PCMCIA interface in the
SoC device, rather than the SA1111.  Hence, the provision of this clock
is a convenience for the driver and does not reflect the hardware, so
this must not be copied into DT.

Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 12:12:31 +01:00
Russell King
07f56e6646 ARM: locomo: fix locomo irq handling
Accidentally booting Collie on Assabet reveals that the locomo driver
incorrectly overwrites gpio-sa1100's chip data for its parent interrupt,
leading to oops in sa1100_gpio_unmask() and sa1100_update_edge_regs()
when "gpio: sa1100: convert to use IO accessors" is applied.  Fix locomo
to use the handler data rather than chip data for its parent interrupt.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 12:12:31 +01:00
Stefan Agner
6b3142b2b8 ARM: 8612/1: LPAE: initialize cache policy correctly
The cachepolicy variable gets initialized using a masked pmd
value. So far, the pmd has been masked with flags valid for the
2-page table format, but the 3-page table format requires a
different mask. On LPAE, this lead to a wrong assumption of what
initial cache policy has been used. Later a check forces the
cache policy to writealloc and prints the following warning:
Forcing write-allocate cache policy for SMP

This patch introduces a new definition PMD_SECT_CACHE_MASK for
both page table formats which masks in all cache flags in both
cases.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-09-12 12:12:30 +01:00
Russell King
87d5dd62c0 ARM: sa1111: fix missing clk_disable()
SA1111 forgets to call clk_disable() in the probe error cleanup path.
Add the necessary call.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 11:04:05 +01:00
Russell King
06dfe5cc0c ARM: sa1111: fix pcmcia suspend/resume
SA1111 PCMCIA was broken when PCMCIA switched to using dev_pm_ops for
the PCMCIA socket class.  PCMCIA used to handle suspend/resume via the
socket hosting device, which happened at normal device suspend/resume
time.

However, the referenced commit changed this: much of the resume now
happens much earlier, in the noirq resume handler of dev_pm_ops.

However, on SA1111, the PCMCIA device is not accessible as the SA1111
has not been resumed at _noirq time.  It's slightly worse than that,
because the SA1111 has already been put to sleep at _noirq time, so
suspend doesn't work properly.

Fix this by converting the core SA1111 code to use dev_pm_ops as well,
and performing its own suspend/resume at noirq time.

This fixes these errors in the kernel log:

pcmcia_socket pcmcia_socket0: time out after reset
pcmcia_socket pcmcia_socket1: time out after reset

and the resulting lack of PCMCIA cards after a S2RAM cycle.

Fixes: d7646f7632 ("pcmcia: use dev_pm_ops for class pcmcia_socket_class")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 11:04:05 +01:00
Russell King
7c0091ecea ARM: sa1111: fix pcmcia interrupt mask polarity
The polarity of the high IRQs was being calculated using
SA1111_IRQMASK_HI(), but this assumes a Linux interrupt number, not a
hardware interrupt number.  Hence, the resulting mask was incorrect.
Fix this.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 11:04:04 +01:00
Russell King
cb034407ec ARM: sa1111: fix error code propagation in sa1111_probe()
Ensure that we propagate the platform_get_irq() error code out of the
probe function.  This allows probe deferrals to work correctly should
platform_get_irq() not be able to resolve the interrupt in a DT
environment at probe time.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 11:04:03 +01:00
Arnd Bergmann
56fe27beeb Handle STiH410 interconnect clock required for EHCI/OHCI and SDHCI
With the introduction of critical-clock support in v4.8, our developers'
 default configuration is to run with 'clk_ignore_unused' removed.  This
 patch-set ensures they can achieve successful boot when a) booting from
 an SD Card and when b) booting using USB->Eth adaptors for NFS booting.
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Merge tag 'sti-dt-fixes-for-v4.8-rcs' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti into fixes

Pull "Handle STiH410 interconnect clock required for EHCI/OHCI and SDHCI" from Patrice Chotard:

With the introduction of critical-clock support in v4.8, our developers'
default configuration is to run with 'clk_ignore_unused' removed.  This
patch-set ensures they can achieve successful boot when a) booting from
an SD Card and when b) booting using USB->Eth adaptors for NFS booting.

* tag 'sti-dt-fixes-for-v4.8-rcs' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti:
  ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI
  ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)
2016-09-09 17:58:40 +02:00
Arnd Bergmann
d31449a59a Renesas ARM Based SoC Fixes for v4.8
* Correct R-Car Gen2 regulator quirk
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Merge tag 'renesas-fixes-for-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Renesas ARM Based SoC Fixes for v4.8" from Simon Horman:

* Correct R-Car Gen2 regulator quirk

* tag 'renesas-fixes-for-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: fix regulator quirk for Gen2
2016-09-09 17:56:40 +02:00
Ian Campbell
6b7b554d34 ARM: dts: Remove use of skeleton.dtsi from bcm283x.dtsi
This file is included from DTS files under arch/arm64 too (via
broadcom/bcm2837-rpi-3-b.dts and broadcom/bcm2837.dtsi). There is a desire
not to have skeleton.dtsi for ARM64. See commit 3ebee5a2e1 ("arm64: dts:
kill skeleton.dtsi") for rationale for its removal.

As well as the addition of #*-cells also requires adding the device_type to
the rpi memory node explicitly.

Note that this change results in the removal of an empty /aliases node from
bcm2835-rpi-a.dtb and bcm2835-rpi-a-plus.dtb. I have no hardware to check
if this is a problem or not.

It also results in some reordering of the nodes in the DTBs (the /aliases
and /memory nodes come later). This isn't supposed to matter but, again,
I've no hardware to check if it is true in this particular case.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rpi-kernel@lists.infradead.org
Cc: arm@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-09 17:46:18 +02:00
Linus Torvalds
53d5f1dcd1 Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "A few ARM fixes:

   - Robin Murphy noticed that the non-secure privileged entry was
     relying on undefined behaviour, which needed to be fixed.

   - Vladimir Murzin noticed that prov-v7 fails to build for MMUless
     configurations because a required header file wasn't included.

   - A bunch of fixes for StrongARM regressions found while testing
     4.8-rc on such platforms"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: sa1100: clear reset status prior to reboot
  ARM: 8600/1: Enforce some NS-SVC initialisation
  ARM: 8599/1: mm: pull asm/memory.h explicitly
  ARM: sa1100: register clocks early
  ARM: sa1100: fix 3.6864MHz clock
2016-09-09 08:32:10 -07:00
Suzuki K Poulose
293f293637 kvm-arm: Unmap shadow pagetables properly
On arm/arm64, we depend on the kvm_unmap_hva* callbacks (via
mmu_notifiers::invalidate_*) to unmap the stage2 pagetables when
the userspace buffer gets unmapped. However, when the Hypervisor
process exits without explicit unmap of the guest buffers, the only
notifier we get is kvm_arch_flush_shadow_all() (via mmu_notifier::release
) which does nothing on arm. Later this causes us to access pages that
were already released [via exit_mmap() -> unmap_vmas()] when we actually
get to unmap the stage2 pagetable [via kvm_arch_destroy_vm() ->
kvm_free_stage2_pgd()]. This triggers crashes with CONFIG_DEBUG_PAGEALLOC,
which unmaps any free'd pages from the linear map.

 [  757.644120] Unable to handle kernel paging request at virtual address
  ffff800661e00000
 [  757.652046] pgd = ffff20000b1a2000
 [  757.655471] [ffff800661e00000] *pgd=00000047fffe3003, *pud=00000047fcd8c003,
  *pmd=00000047fcc7c003, *pte=00e8004661e00712
 [  757.666492] Internal error: Oops: 96000147 [#3] PREEMPT SMP
 [  757.672041] Modules linked in:
 [  757.675100] CPU: 7 PID: 3630 Comm: qemu-system-aar Tainted: G      D
 4.8.0-rc1 #3
 [  757.683240] Hardware name: AppliedMicro X-Gene Mustang Board/X-Gene Mustang Board,
  BIOS 3.06.15 Aug 19 2016
 [  757.692938] task: ffff80069cdd3580 task.stack: ffff8006adb7c000
 [  757.698840] PC is at __flush_dcache_area+0x1c/0x40
 [  757.703613] LR is at kvm_flush_dcache_pmd+0x60/0x70
 [  757.708469] pc : [<ffff20000809dbdc>] lr : [<ffff2000080b4a70>] pstate: 20000145
 ...
 [  758.357249] [<ffff20000809dbdc>] __flush_dcache_area+0x1c/0x40
 [  758.363059] [<ffff2000080b6748>] unmap_stage2_range+0x458/0x5f0
 [  758.368954] [<ffff2000080b708c>] kvm_free_stage2_pgd+0x34/0x60
 [  758.374761] [<ffff2000080b2280>] kvm_arch_destroy_vm+0x20/0x68
 [  758.380570] [<ffff2000080aa330>] kvm_put_kvm+0x210/0x358
 [  758.385860] [<ffff2000080aa524>] kvm_vm_release+0x2c/0x40
 [  758.391239] [<ffff2000082ad234>] __fput+0x114/0x2e8
 [  758.396096] [<ffff2000082ad46c>] ____fput+0xc/0x18
 [  758.400869] [<ffff200008104658>] task_work_run+0x108/0x138
 [  758.406332] [<ffff2000080dc8ec>] do_exit+0x48c/0x10e8
 [  758.411363] [<ffff2000080dd5fc>] do_group_exit+0x6c/0x130
 [  758.416739] [<ffff2000080ed924>] get_signal+0x284/0xa18
 [  758.421943] [<ffff20000808a098>] do_signal+0x158/0x860
 [  758.427060] [<ffff20000808aad4>] do_notify_resume+0x6c/0x88
 [  758.432608] [<ffff200008083624>] work_pending+0x10/0x14
 [  758.437812] Code: 9ac32042 8b010001 d1000443 8a230000 (d50b7e20)

This patch fixes the issue by moving the kvm_free_stage2_pgd() to
kvm_arch_flush_shadow_all().

Cc: <stable@vger.kernel.org> # 3.9+
Tested-by: Itaru Kitayama <itaru.kitayama@riken.jp>
Reported-by: Itaru Kitayama <itaru.kitayama@riken.jp>
Reported-by: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2016-09-09 12:40:30 +02:00
Linus Torvalds
e8b3b45de8 ARM: SoC fixes
This is a slightly larger batch of fixes that we've been sitting on a few
 -rcs. Most of them are simple oneliners, but there are two sets that are
 slightly larger and worth pointing out:
 
  - A set of patches to OMAP to deal with hwmod for RTC on am33xx (beaglebone
    SoC, among others). It's the only clock that ever has a valid offset of 0,
    so a new flag needed introduction once this problem was discovered.
 
  - A collection of CCI fixes for performance counters discovered once people
    started using it on X-Gene CPUs.
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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:
 "This is a slightly larger batch of fixes that we've been sitting on a
  few -rcs.  Most of them are simple oneliners, but there are two sets
  that are slightly larger and worth pointing out:

   - A set of patches to OMAP to deal with hwmod for RTC on am33xx
     (beaglebone SoC, among others).  It's the only clock that ever has
     a valid offset of 0, so a new flag needed introduction once this
     problem was discovered.

   - A collection of CCI fixes for performance counters discovered once
     people started using it on X-Gene CPUs"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
  arm-cci: pmu: Fix typo in event name
  Revert "ARM: tegra: fix erroneous address in dts"
  ARM: dts: imx6qdl: Fix SPDIF regression
  ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx
  ARM: dts: imx7d-sdb: fix ti,x-plate-ohms property name
  ARM: dts: kirkwood: Fix PCIe label on OpenRD
  ARM: kirkwood: ib62x0: fix size of u-boot environment partition
  bus: arm-ccn: make event groups reliable
  bus: arm-ccn: fix hrtimer registration
  bus: arm-ccn: fix PMU interrupt flags
  ARM: tegra: Correct polarity for Tegra114 PMIC interrupt
  MAINTAINERS: add tree entry for ARM/UniPhier architecture
  ARM: sun5i: Fix typo in trip point temperature
  MAINTAINERS: Switch to kernel.org account for Krzysztof Kozlowski
  ARM: imx6ul: populates platform device at .init_machine
  bus: arm-ccn: Add missing event attribute exclusions for host/guest
  bus: arm-ccn: Correct required arguments for XP PMU events
  bus: arm-ccn: Fix XP watchpoint settings bitmask
  bus: arm-ccn: Do not attempt to configure XPs for cycle counter
  bus: arm-ccn: Fix PMU handling of MN
  ...
2016-09-08 12:05:15 -07:00
Lee Jones
78567f135d ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI
The STiH4{07,10} platform contains some interconnect clocks which are used
by various IPs.  If these clocks aren't handled correctly by ST's SDHCI
driver MMC will break and the following output can be observed:

[   13.916949] mmc0: Timeout waiting for hardware interrupt.
[   13.922349] sdhci: =========== REGISTER DUMP (mmc0)===========
[   13.928175] sdhci: Sys addr: 0x00000000 | Version:  0x00001002
[   13.933999] sdhci: Blk size: 0x00007040 | Blk cnt:  0x00000001
[   13.939825] sdhci: Argument: 0x00fffff0 | Trn mode: 0x00000013
[   13.945650] sdhci: Present:  0x1fff0206 | Host ctl: 0x00000011
[   13.951475] sdhci: Power:    0x0000000f | Blk gap:  0x00000080
[   13.957300] sdhci: Wake-up:  0x00000000 | Clock:    0x00003f07
[   13.963126] sdhci: Timeout:  0x00000004 | Int stat: 0x00000000
[   13.968952] sdhci: Int enab: 0x02ff008b | Sig enab: 0x02ff008b
[   13.974777] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[   13.980602] sdhci: Caps:     0x21ed3281 | Caps_1:   0x00000000
[   13.986428] sdhci: Cmd:      0x0000063a | Max curr: 0x00000000
[   13.992252] sdhci: Host ctl2: 0x00000000
[   13.996166] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x7c048200
[   14.001990] sdhci: ===========================================
[   14.009802] mmc0: Got data interrupt 0x02000000 even though no data operation was in progress.

Cc: stable@vger.kernel.org
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2016-09-08 15:51:12 +02:00
Lee Jones
7e9d2850a8 ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)
The STiH4{07,10} platform contains some interconnect clocks which are used
by various IPs.  If this clock isn't handled correctly by ST's EHCI/OHCI
drivers, their hub won't be found, the following error be shown and the
result will be non-working USB:

  [   97.221963] hub 2-1:1.0: hub_ext_port_status failed (err = -110)

Cc: stable@vger.kernel.org
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2016-09-08 15:51:01 +02:00
Olof Johansson
95390e3290 Allwinner fixes for 4.8
A single patch fixing a typo in the temperature trip points in the A13
 DTSI.
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Merge tag 'sunxi-fixes-for-4.8' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Allwinner fixes for 4.8

A single patch fixing a typo in the temperature trip points in the A13
DTSI.

* tag 'sunxi-fixes-for-4.8' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sun5i: Fix typo in trip point temperature

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-09-07 21:25:08 -07:00
Olof Johansson
28fa991736 i.MX fixes for 4.8, 2nd round:
- Fix misspelled "ti,x-plate-ohms" property name of touchscreen
    controller for imx7d-sdb DTS.
  - Add missing BM_CLPCR_BYPASS_PMIC_READY setting for i.MX6SX to get
    suspend/resume work properly.
  - Fix SPDIF regression on imx6qdl which caused by a clock update on
    spdif device node.
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Merge tag 'imx-fixes-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.8, 2nd round:
 - Fix misspelled "ti,x-plate-ohms" property name of touchscreen
   controller for imx7d-sdb DTS.
 - Add missing BM_CLPCR_BYPASS_PMIC_READY setting for i.MX6SX to get
   suspend/resume work properly.
 - Fix SPDIF regression on imx6qdl which caused by a clock update on
   spdif device node.

* tag 'imx-fixes-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6qdl: Fix SPDIF regression
  ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx
  ARM: dts: imx7d-sdb: fix ti,x-plate-ohms property name

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-09-07 21:24:22 -07:00
Olof Johansson
d8b795f5e3 Revert "ARM: tegra: fix erroneous address in dts"
This reverts commit b5c86b7496.

This is no longer needed due to other changes going into 4.8 to rename
the unit addresses on a large number of device nodes. So it was picked up
for v4.8-rc1 in error.

Reported-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-09-07 21:16:40 -07:00
Marc Zyngier
d2896d4b55 arm: KVM: Fix idmap overlap detection when the kernel is idmap'ed
We're trying hard to detect when the HYP idmap overlaps with the
HYP va, as it makes the teardown of a cpu dangerous. But there is
one case where an overlap is completely safe, which is when the
whole of the kernel is idmap'ed, which is likely to happen on 32bit
when RAM is at 0x8000000 and we're using a 2G/2G VA split.

In that case, we can proceed safely.

Reported-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2016-09-06 13:09:31 +02:00
Fabio Estevam
f065e9e4ad ARM: dts: imx6qdl: Fix SPDIF regression
Commit 833f2cbf70 ("ARM: dts: imx6: change the core clock of spdif")
changed many more clocks than only the SPDIF core clock as stated in
the commit message.

The MLB clock has been added and this causes SPDIF regression as
reported by Xavi Drudis Ferran and also in this forum post:
https://forum.digikey.com/thread/34240

The MX6Q Reference Manual does not mention that MLB is a clock related
to SPDIF, so change it back to a dummy clock to restore SPDIF
functionality.

Thanks to Ambika for providing the fix at:
https://community.nxp.com/thread/387131

Fixes: 833f2cbf70 ("ARM: dts: imx6: change the core clock of spdif")
Cc: <stable@vger.kernel.org> # 4.4.x
Reported-by: Xavi Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by:  Xavi Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-09-05 10:30:58 +08:00
Linus Torvalds
018c81b827 Staging/IIO driver fixes for 4.8-rc5
Here are a number of small fixes for staging and IIO drivers that
 resolve reported problems.
 
 Full details are in the shortlog.  All of these have been in linux-next
 with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO driver fixes from Greg KH:
 "Here are a number of small fixes for staging and IIO drivers that
  resolve reported problems.

  Full details are in the shortlog.  All of these have been in
  linux-next with no reported issues"

* tag 'staging-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (35 commits)
  arm: dts: rockchip: add reset node for the exist saradc SoCs
  arm64: dts: rockchip: add reset saradc node for rk3368 SoCs
  iio: adc: rockchip_saradc: reset saradc controller before programming it
  iio: accel: kxsd9: Fix raw read return
  iio: adc: ti_am335x_adc: Increase timeout value waiting for ADC sample
  iio: adc: ti_am335x_adc: Protect FIFO1 from concurrent access
  include/linux: fix excess fence.h kernel-doc notation
  staging: wilc1000: correctly check if associatedsta has not been found
  staging: wilc1000: NULL dereference on error
  staging: wilc1000: txq_event: Fix coding error
  MAINTAINERS: Add file patterns for ion device tree bindings
  MAINTAINERS: Update maintainer entry for wilc1000
  iio: chemical: atlas-ph-sensor: fix typo in val assignment
  iio: fix sched WARNING "do not call blocking ops when !TASK_RUNNING"
  staging: comedi: ni_mio_common: fix AO inttrig backwards compatibility
  staging: comedi: dt2811: fix a precedence bug
  staging: comedi: adv_pci1760: Do not return EINVAL for CMDF_ROUND_DOWN.
  staging: comedi: ni_mio_common: fix wrong insn_write handler
  staging: comedi: comedi_test: fix timer race conditions
  staging: comedi: daqboard2000: bug fix board type matching code
  ...
2016-09-03 11:33:33 -07:00
Arnd Bergmann
982098a9f7 Merge tag 'mvebu-fixes-4.8-2' of git://git.infradead.org/linux-mvebu into fixes
Merge "mvebu fixes for 4.8 (part 1)" from Gregory CLEMENT:

Few device tree fix on kirkwood:
- enable PCIe on OpenRD
- use correct u-boot environment partition size on ib62x0

* tag 'mvebu-fixes-4.8-2' of git://git.infradead.org/linux-mvebu:
  ARM: dts: kirkwood: Fix PCIe label on OpenRD
  ARM: kirkwood: ib62x0: fix size of u-boot environment partition
2016-09-02 16:09:44 +02:00
Wolfram Sang
c2f321126e ARM: shmobile: fix regulator quirk for Gen2
The current implementation only works if the da9xxx devices are added
before their drivers are registered. Only then it can apply the fixes to
both devices. Otherwise, the driver for the first device gets probed
before the fix for the second device can be applied. This is what
fails when using the IP core switcher or when having the i2c master
driver as a module.

So, we need to disable both da9xxx once we detected one of them. We now
use i2c_transfer with hardcoded i2c_messages and device addresses, so we
don't need the da9xxx client devices to be instantiated. Because the
fixup is used on specific boards only, the addresses are not going to
change.

Fixes: 663fbb5215 ("ARM: shmobile: R-Car Gen2: Add da9063/da9210 regulator quirk")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> (r8a7791/koelsch)
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2016-09-02 10:15:38 +02:00
Anson Huang
8aade778f7 ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx
i.MX6SX has bypass PMIC ready function, as this function
is normally NOT enabled on the board design, so we need
to bypass the PMIC ready pin check during DSM mode resume
flow, otherwise, the internal DSM resume logic will be
waiting for this signal to be ready forever and cause
resume fail.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Fixes: ff843d621b ("ARM: imx: add suspend support for i.mx6sx")
Cc: <stable@vger.kernel.org>
Tested-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-08-30 19:23:17 +08:00
Javier Martinez Canillas
b030485220 ARM: EXYNOS: Clear OF_POPULATED flag from PMU node in IRQ init callback
The Exynos PMU node is an interrupt, clock and PMU (Power Management Unit)
controller, and these functionalities are supported by different drivers
that matches the same compatible strings.

Since commit 15cc2ed6dc ("of/irq: Mark initialised interrupt controllers
as populated") the OF core flags interrupt controllers registered with the
IRQCHIP_DECLARE() macro as OF_POPULATED, so platform devices with the same
compatible string as the interrupt controller will not be registered.

This prevents the PMU platform device to be registered so the Exynos PMU
driver is never probed. This breaks (among other things) Suspend-to-RAM.

Fix this by clearing the OF_POPULATED flag in the PMU IRQ init callback,
to allow the Exynos PMU platform driver to be probed. The patch is based
on Philipp Zabel's "ARM: imx6: mark GPC node as not populated after irq
init to probe pm domain driver".

Fixes: 15cc2ed6dc ("of/irq: Mark initialised interrupt controllers as populated")
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2016-08-30 10:49:18 +02:00
Linus Torvalds
1f6a563ee0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Segregate namespaces properly in conntrack dumps, from Liping Zhang.

 2) tcp listener refcount fix in netfilter tproxy, from Eric Dumazet.

 3) Fix timeouts in qed driver due to xmit_more, from Yuval Mintz.

 4) Fix use-after-free in tcp_xmit_retransmit_queue().

 5) Userspace header fixups (use of __u32, missing includes, etc.) from
    Mikko Rapeli.

 6) Further refinements to fragmentation wrt gso and tunnels, from
    Shmulik Ladkani.

 7) Trigger poll correctly for zero length UDP packets, from Eric
    Dumazet.

 8) TCP window scaling fix, also from Eric Dumazet.

 9) SLAB_DESTROY_BY_RCU is not relevant any more for UDP sockets.

10) Module refcount leak in qdisc_create_dflt(), from Eric Dumazet.

11) Fix deadlock in cp_rx_poll() of 8139cp driver, from Gao Feng.

12) Memory leak in rhashtable's alloc_bucket_locks(), from Eric Dumazet.

13) Add new device ID to alx driver, from Owen Lin.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (83 commits)
  Add Killer E2500 device ID in alx driver.
  net: smc91x: fix SMC accesses
  Documentation: networking: dsa: Remove platform device TODO
  net/mlx5: Increase number of ethtool steering priorities
  net/mlx5: Add error prints when validate ETS failed
  net/mlx5e: Fix memory leak if refreshing TIRs fails
  net/mlx5e: Add ethtool counter for TX xmit_more
  net/mlx5e: Fix ethtool -g/G rx ring parameter report with striding RQ
  net/mlx5e: Don't wait for SQ completions on close
  net/mlx5e: Don't post fragmented MPWQE when RQ is disabled
  net/mlx5e: Don't wait for RQ completions on close
  net/mlx5e: Limit UMR length to the device's limitation
  rhashtable: fix a memory leak in alloc_bucket_locks()
  sfc: fix potential stack corruption from running past stat bitmask
  team: loadbalance: push lacpdus to exact delivery
  net: hns: dereference ppe_cb->ppe_common_cb if it is non-null
  8139cp: Fix one possible deadloop in cp_rx_poll
  i40e: Change some init flow for the client
  Revert "phy: IRQ cannot be shared"
  net: dsa: bcm_sf2: Fix race condition while unmasking interrupts
  ...
2016-08-29 12:29:13 -07:00
Vladimir Zapolskiy
f7d3586f2d ARM: dts: imx7d-sdb: fix ti,x-plate-ohms property name
Fix misspelled "ti,x-plate-ohms" property name of TI TSC2046
touchscreen controller.

Fixes: d09e6beafa ("ARM: dts: imx7d-sdb: Add support for touchscreen")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-08-29 22:19:56 +08:00
Russell King
2fb04fdf30 net: smc91x: fix SMC accesses
Commit b70661c708 ("net: smc91x: use run-time configuration on all ARM
machines") broke some ARM platforms through several mistakes.  Firstly,
the access size must correspond to the following rule:

(a) at least one of 16-bit or 8-bit access size must be supported
(b) 32-bit accesses are optional, and may be enabled in addition to
    the above.

Secondly, it provides no emulation of 16-bit accesses, instead blindly
making 16-bit accesses even when the platform specifies that only 8-bit
is supported.

Reorganise smc91x.h so we can make use of the existing 16-bit access
emulation already provided - if 16-bit accesses are supported, use
16-bit accesses directly, otherwise if 8-bit accesses are supported,
use the provided 16-bit access emulation.  If neither, BUG().  This
exactly reflects the driver behaviour prior to the commit being fixed.

Since the conversion incorrectly cut down the available access sizes on
several platforms, we also need to go through every platform and fix up
the overly-restrictive access size: Arnd assumed that if a platform can
perform 32-bit, 16-bit and 8-bit accesses, then only a 32-bit access
size needed to be specified - not so, all available access sizes must
be specified.

This likely fixes some performance regressions in doing this: if a
platform does not support 8-bit accesses, 8-bit accesses have been
emulated by performing a 16-bit read-modify-write access.

Tested on the Intel Assabet/Neponset platform, which supports only 8-bit
accesses, which was broken by the original commit.

Fixes: b70661c708 ("net: smc91x: use run-time configuration on all ARM machines")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-28 23:44:55 -04:00
Linus Torvalds
af56ff27eb * ARM fixes:
** fixes for ITS init issues, error handling, IRQ leakage, race conditions
 ** An erratum workaround for timers
 ** Some removal of misleading use of errors and comments
 ** A fix for GICv3 on 32-bit guests
 * MIPS fix where the guest could wrongly map the first page of physical memory
 * x86 nested virtualization fixes
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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:
   - fixes for ITS init issues, error handling, IRQ leakage, race
     conditions
   - an erratum workaround for timers
   - some removal of misleading use of errors and comments
   - a fix for GICv3 on 32-bit guests

  MIPS:
   - fix for where the guest could wrongly map the first page of
     physical memory

  x86:
   - nested virtualization fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  MIPS: KVM: Check for pfn noslot case
  kvm: nVMX: fix nested tsc scaling
  KVM: nVMX: postpone VMCS changes on MSR_IA32_APICBASE write
  KVM: nVMX: fix msr bitmaps to prevent L2 from accessing L0 x2APIC
  arm64: KVM: report configured SRE value to 32-bit world
  arm64: KVM: remove misleading comment on pmu status
  KVM: arm/arm64: timer: Workaround misconfigured timer interrupt
  arm64: Document workaround for Cortex-A72 erratum #853709
  KVM: arm/arm64: Change misleading use of is_error_pfn
  KVM: arm64: ITS: avoid re-mapping LPIs
  KVM: arm64: check for ITS device on MSI injection
  KVM: arm64: ITS: move ITS registration into first VCPU run
  KVM: arm64: vgic-its: Make updates to propbaser/pendbaser atomic
  KVM: arm64: vgic-its: Plug race in vgic_put_irq
  KVM: arm64: vgic-its: Handle errors from vgic_add_lpi
  KVM: arm64: ITS: return 1 on successful MSI injection
2016-08-27 15:51:50 -07:00
Russell King
da60626e7d ARM: sa1100: clear reset status prior to reboot
Clear the current reset status prior to rebooting the platform.  This
adds the bit missing from 04fef228fb ("[ARM] pxa: introduce
reset_status and clear_reset_status for driver's usage").

Fixes: 04fef228fb ("[ARM] pxa: introduce reset_status and clear_reset_status for driver's usage")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-08-26 15:09:24 +01:00
Gregory CLEMENT
c721da1d05 ARM: dts: kirkwood: Fix PCIe label on OpenRD
While converting PCIe node on kirkwood by using label, the following
commit eb13cf8345 ("ARM: dts: kirkwood: Fixup pcie DT warnings")
introduced a regression on the OpenRD boards: the PCIe didn't work
anymore. As reported by Aaro Koskinen, the display/framebuffer was
lost. This commit adds the forgotten label.

Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Fixes: eb13cf8345 ("ARM: dts: kirkwood: Fixup pcie DT warnings")
Cc: stable@vger.kernel.org
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-08-26 11:33:16 +02:00
Simon Baatz
a778937888 ARM: kirkwood: ib62x0: fix size of u-boot environment partition
Commit 148c274ea6 ("ARM: kirkwood: ib62x0: add u-boot environment
partition") split the "u-boot" partition into "u-boot" and "u-boot
environment".  However, instead of the size of the environment, an offset
was given, resulting in overlapping partitions.

Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Fixes: 148c274ea6 ("ARM: kirkwood: ib62x0: add u-boot environment partition")
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Luka Perkov <luka@openwrt.org>
Cc: stable@vger.kernel.org # 3.13+
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-08-26 11:30:51 +02:00
Jon Hunter
0a10e85b6c ARM: tegra: Correct polarity for Tegra114 PMIC interrupt
The ARM GIC only supports interrupts with either level-high or
rising-edge types for SPIs. The interrupt type for the Palmas PMIC used
for Tegra114 boards is specified as level-low which is invalid for the
GIC. This has gone undetected because until recently, failures to set
the interrupt type when the interrupts are mapped via firmware (such as
device-tree) have not been reported. Since commits 4b357daed6
("genirq: Look-up trigger type if not specified by caller") and
1e2a7d7849 ("irqdomain: Don't set type when mapping an IRQ"), failure
to set the interrupt type will cause the requesting of the interrupt to
fail and exposing incorrectly configured interrupts.

Please note that although the interrupt type was never being set for the
Palmas PMIC, it was still working fine, because the default type setting
for the interrupt, 'level-high', happen to match the correct type for
the interrupt.

Finally, it should be noted that the Palmas interrupt from the PMIC is
actually 'level-low', however, this interrupt signal is inverted by the
Tegra PMC and so the GIC actually sees a 'level-high' interrupt which is
what should be specified in the device-tree interrupt specifier.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-08-25 17:31:30 -07:00
Olof Johansson
633af91ddb Fix for v4.8-rc1:
1. Select proper eMMC HighSpeed mode on Odroid XU.  DTS was mixing
    "samsung,exynos5250-dw-mshc" compatible (with HS200 as fastest mode)
    with a property "mmc-hs400-1_8v" thus leading to failures during
    probe.
 
 2. Update Krzysztof Kozlowski's email address in maintainers.
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Merge tag 'samsung-fixes-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes

Fix for v4.8-rc1:
1. Select proper eMMC HighSpeed mode on Odroid XU.  DTS was mixing
   "samsung,exynos5250-dw-mshc" compatible (with HS200 as fastest mode)
   with a property "mmc-hs400-1_8v" thus leading to failures during
   probe.

2. Update Krzysztof Kozlowski's email address in maintainers.

* tag 'samsung-fixes-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  MAINTAINERS: Switch to kernel.org account for Krzysztof Kozlowski
  ARM: dts: exynos: Properly select eMMC HighSpeed mode on Odroid XU

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-08-25 17:29:32 -07:00
Olof Johansson
1ce3b12f43 The i.MX fixes for 4.8:
- Fix typo in imx6sx-sabreauto board wakeup property
  - Fix i.MX6UL suspend-to-standby support by adding the
    BM_CLPCR_BYP_MMDC_CH0_LPM_HS handling
  - Fix a i.MX6UL regression on suspend support, which is caused by
    commit 850bea2335 ("arm: Remove unnecessary of_platform_populate
    with default match table")
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Merge tag 'imx-fixes-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

The i.MX fixes for 4.8:
 - Fix typo in imx6sx-sabreauto board wakeup property
 - Fix i.MX6UL suspend-to-standby support by adding the
   BM_CLPCR_BYP_MMDC_CH0_LPM_HS handling
 - Fix a i.MX6UL regression on suspend support, which is caused by
   commit 850bea2335 ("arm: Remove unnecessary of_platform_populate
   with default match table")

* tag 'imx-fixes-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx6ul: populates platform device at .init_machine
  ARM: imx6: add missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul
  ARM: dts: imx6sx-sabreauto: Fix misspelled property

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-08-25 17:21:37 -07:00
Olof Johansson
fd03819797 Fixes for omaps for v4.8-rc cycle, mostly a series of four fixes for
am335x RTC zero offset for clkctrl register. Also few other fixes:
 
 - Add missing sysc information for DSI as at least n950 needs it for
   the working display
 
 - Fix old elm-id properties that cause nand boot to not work
 
 - Fix overo gpmc nand cs0 range
 
 - FIx overo gpmc nand on boards with ethernet
 
 - Fix logicpd torpedo nand ready pin nand interrupt configuration
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Merge tag 'omap-for-v4.8/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for v4.8-rc cycle, mostly a series of four fixes for
am335x RTC zero offset for clkctrl register. Also few other fixes:

- Add missing sysc information for DSI as at least n950 needs it for
  the working display

- Fix old elm-id properties that cause nand boot to not work

- Fix overo gpmc nand cs0 range

- FIx overo gpmc nand on boards with ethernet

- Fix logicpd torpedo nand ready pin nand interrupt configuration

* tag 'omap-for-v4.8/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: logicpd-somlv: Fix NAND device nodes
  ARM: dts: logicpd-torpedo-som: Provide NAND ready pin
  ARM: dts: overo: fix gpmc nand on boards with ethernet
  ARM: dts: overo: fix gpmc nand cs0 range
  ARM: dts: am335x: Update elm phandle binding
  ARM: OMAP4+: CM: Remove redundant checks for clkctrl_offs of zero
  ARM: OMAP4+: Have _omap4_wait_target_* check for valid clkctrl_offs
  ARM: OMAP2+: AM33XX: Add HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET flag to rtc hwmod
  ARM: OMAP4+: hwmod: Add hwmod flag for HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET
  ARM: OMAP3: hwmod data: Add sysc information for DSI

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-08-25 17:12:23 -07:00