Commit Graph

35 Commits

Author SHA1 Message Date
Baolin Wang
0419a75b18 arm64: dts: sprd: Remove wildcard compatible string
Remove wildcard compatible string.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-18 11:33:57 +01:00
Baolin Wang
02643475a8 arm64: dts: sprd: Add SC27XX fuel gauge device
Add Spreadtrum SC27XX fuel gauge device node to calculate the
battery capacity.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-18 11:33:21 +01:00
Baolin Wang
a479540953 arm64: dts: sprd: Add SC2731 charger device
Add charger device node and related battery node for SC2731 PMIC.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-18 11:33:01 +01:00
Baolin Wang
640e2c51bd arm64: dts: sprd: Add ADC calibration support
This patch adds phandles to the calibration cells provided by the Efuse
device, which is used to calibrate the ADC channel scales.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-18 11:32:47 +01:00
Baolin Wang
5863dbe071 arm64: dts: sprd: Remove PMIC INTC irq trigger type
The Spreadtrum PMIC INTC controller has no registers to set trigger type,
since it is always high level trigger as default. So remove its child
devices' irq trigger type setting and change #interrupt-cells to 1.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-18 11:32:11 +01:00
Rob Herring
31af04cd60 arm64: dts: Remove inconsistent use of 'arm,armv8' compatible string
The 'arm,armv8' compatible string is only for software models. It adds
little value otherwise and is inconsistently used as a fallback on some
platforms. Remove it from those platforms.

This fixes warnings generated by the DT schema.

Reported-by: Michal Simek <michal.simek@xilinx.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Chanho Min <chanho.min@lge.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Chunyan Zhang <zhang.lyra@gmail.com>
Acked-by: Robert Richter <rrichter@cavium.com>
Acked-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-01-30 17:34:36 +01:00
Suzuki K Poulose
1a9e779679 arm64: dts: sc9836/sc9860: Update coresight bindings for hardware ports
Switch to the new coresight bindings for hw ports

Cc: orsonzhai@gmail.com
Cc: zhang.lyra@gmail.com
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
2018-11-05 14:47:28 +08:00
Linus Torvalds
b326272010 ARM: SoC: late updates
A couple of late-merged changes that would be useful to get in this
 merge window:
 
  - Driver support for reset of audio complex on Meson platforms. The
    audio driver went in this merge window, and these changes have been
    in -next for a while (just not in our tree).
 
  - Power management fixes for IOMMU on Rockchip platforms, getting
    closer to kexec working on them, including Chromebooks.
 
  - Another pass updating "arm,psci" -> "psci" for some properties that
    have snuck in since last time it was done.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAluBrbAPHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx372IQAJayIgII0C/2MO7aUuVQixoIkSdXmfTbjHSZ
 JJLiK5Kbua4Gvpq3tkSowg35ohUvPlkoKmDDSTSuiUHGNDQQE9ETQzy5dxrP8R/m
 dpQpgA41oa9U1Uscl10Bjaf4Oe1NoBhpGx8xrlNYEXRliKkBMulMevj1MovUBSk0
 SvuWmwekVrEbVj0cDZ4f5Ze3ODWAkbKdUYebjBHHvDEyHO0J8LJT5Hv98ZEQs+mz
 BJQeapIXk29Tj1D37+5hoaxglDF4NJvxwQ/VxB7BCXAw2p98Y7TSu473HYkMdp1g
 ricaldmBlqXVG9KN30tmxjJAgUtupfHicVQ4oNcGQfRWFlwxK8dtKrnzOb6tIRyl
 S/86gGgFF9jjRlVlRxwCohhswXJR2sqYBw8d10YzsozV/jSgKi+60P8wT+yQIv6H
 BctwzH4+W7QEAVnx3AvYMWPtgUp1rtvaNjSfz/s7ZAKmEBT/rOD34oXJ8tCnjvVX
 zsm/5dSqVSbROlP7MY1qC2kHFUQyGcLco45BKXPa6VH/eOkIt3f/VZjXdBmf6CoY
 xFl7bIoHN8LSt9SdaC3pOfA+oEaM90L+SR8KBK+o58fNiFiwarWqqXR2B7Ql/AKJ
 j6hic30994/MzUoqCp+stVI2dISb5LofmVpmGeF7CVWihyB6efqzh4RTc1GCKHcK
 bhNcAMMJ
 =dQaG
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late updates from Olof Johansson:
 "A couple of late-merged changes that would be useful to get in this
  merge window:

   - Driver support for reset of audio complex on Meson platforms. The
     audio driver went in this merge window, and these changes have been
     in -next for a while (just not in our tree).

   - Power management fixes for IOMMU on Rockchip platforms, getting
     closer to kexec working on them, including Chromebooks.

   - Another pass updating "arm,psci" -> "psci" for some properties that
     have snuck in since last time it was done"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  iommu/rockchip: Move irq request past pm_runtime_enable
  iommu/rockchip: Handle errors returned from PM framework
  arm64: rockchip: Force CONFIG_PM on Rockchip systems
  ARM: rockchip: Force CONFIG_PM on Rockchip systems
  arm64: dts: Fix various entry-method properties to reflect documentation
  reset: imx7: Fix always writing bits as 0
  reset: meson: add meson audio arb driver
  reset: meson: add dt-bindings for meson-axg audio arb
2018-08-25 14:12:36 -07:00
Amit Kucheria
e9880240e4 arm64: dts: Fix various entry-method properties to reflect documentation
The idle-states binding documentation[1] mentions that the
'entry-method' property is required on 64-bit platforms and must be
set to "psci".

commit a13f18f59d ("Documentation: arm: Fix typo in the idle-states
bindings examples") attempted to fix this earlier but clearly more is
needed.

Fix the cpu-capacity.txt documentation that uses the incorrect value so
we don't get copy-paste errors like these. Clarify the language in
idle-states.txt by removing the reference to the psci bindings that
might be causing this confusion.

Finally, fix devicetrees of various boards to reflect current
documentation.

[1] Documentation/devicetree/bindings/arm/idle-states.txt (see
idle-states node)

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-08-24 08:50:02 -07:00
Baolin Wang
b2d94b3ff0 arm64: dts: sprd: Add one suspend timer
On Spreadtrum platform, the current clocksource for timekeeping will be
stopped in suspend state, thus add one always-on timer to calculate the
suspend time.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-25 23:51:32 -07:00
Baolin Wang
fc8e565f20 arm64: dts: sprd: Add SC27XX ADC device
Add the Spreadtrum SC27XX PMICs ADC device node which contains 32 channels.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-25 23:51:29 -07:00
Baolin Wang
17a376c0b5 arm64: dts: sprd: Add SC27XX eFuse device
This patch adds the eFuse device node for Spreadtrum SC27XX PMICs.
The SC27XX eFuse contains 32 blocks and each block's data width is
16 bits.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-25 23:51:26 -07:00
Baolin Wang
f94cd003c2 arm64: dts: sprd: Add SC27XX vibrator device
This patch adds the vibrator device node for Spreadtrum SC27XX PMICs.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-25 23:51:19 -07:00
Baolin Wang
02c2455e92 arm64: dts: sprd: Add SC27XX breathing light controller device
The SC27xx breathing light controller can support 3 outputs:
red LED, green LED and blue LED.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-25 23:51:16 -07:00
Baolin Wang
21a9883f57 arm64: dts: sprd: whale2: Add the rtc enable clock for watchdog
Add the rtc enable clock for watchdog controller to make it work well.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-25 15:29:39 -07:00
Baolin Wang
1cea2c22ec arm64: dts: sprd: Add GPIO and GPIO keys device nodes
This patch adds device nodes to enable one GPIO controller located on
digital chip, 2 EIC (external interrupt controller) controllers loacted
on PMIC and digital chip for Spreadtrum SC9860 platform.

Moreover this patch adds 3 GPIO keys relied on EIC controller to support
power key and volume up/down keys.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-25 15:28:29 -07:00
Rob Herring
e0c66d34bf arm64: dts: sprd: fix typo in 'remote-endpoint'
dtc now warns on incomplete OF graph endpoint connections:

arch/arm64/boot/dts/sprd/sp9860g-1h10.dtb: Warning (graph_endpoint): /soc/stm@10006000/port/endpoint: graph connection to node '/soc/funnel@10001000/ports/port@2/endpoint' is not bidirectional

The cause is a typo in 'remote-endpoint'.

Cc: Orson Zhai <orsonzhai@gmail.com>
Cc: Baolin Wang <baolin.wang@linaro.org>
Cc: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-25 15:11:27 -07:00
Baolin Wang
9f068ac878 arm64: dts: Add SC2731 PMIC dts file for Spreadtrum SC9860
The Spreadtrum SC9860 platform has one SC2731 PMIC, and the SC2731
PMIC integrates all mobile handset power management, audio codec,
battery management and user interface support function in a single
chip.

This patch adds the SC2731 dts file, as well as adding the RTC and
regulator device node for this PMIC.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-07 15:27:29 +01:00
Baolin Wang
258e1ae63c arm64: dts: Add DMA device node for Spreadtrum SC9860
The Spreadtrum SC9860 platform has two DMA controllers, one is located
on the ap-ahb system, and another one is located on the agcp system.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-07 15:27:19 +01:00
Baolin Wang
4f681369b9 arm64: dts: Add watchdog device node for Spreadtrum SC9860
Add the watchdog device node for Spreadtrum SC9860 platform to
watch the system's stability.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-07 15:27:10 +01:00
Baolin Wang
0cb3dad02d arm64: dts: Add timer node for Spreadtrum SC9860
We will use one always-on timer to be the broadcast device, thus add
the timer device node for Spreadtrum SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-07 15:26:58 +01:00
Baolin Wang
d85bcd9c62 arm64: dts: Add pin controller node for Spreadtrum SC9860
This patch adds the pin controller device node for Spreadtrum
SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-07 15:26:48 +01:00
Baolin Wang
e254460a89 arm64: dts: Add ADI device node for Spreadtrum SC9860
We will access the PMIC through ADI controller, thus this patch adds
the ADI device node for Spreadtrum SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-07 15:26:36 +01:00
Baolin Wang
6c6fbbd1ab arm64: dts: Add hwspinlock node for Spreadtrum SC9860
The Spreadtrum SC9860 platform only has one hardware spinlock device,
which is located on AON system of Spreadtrum SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-07 15:26:22 +01:00
Arnd Bergmann
db29bf7b1c arm64: dts: sprd: remove broken header inclusion
The added header inclusion broke the 'allmodconfig' build in
arm-soc, presumably since the file is added in a different tree:

In file included from arch/arm64/boot/dts/sprd/sp9860g-1h10.dts:11:0:
arch/arm64/boot/dts/sprd/sc9860.dtsi:10:10: fatal error: dt-bindings/clock/sprd,sc9860-clk.h: No such file or directory

It turns out we don't actually need to include it at all, so
I'm removing the line again to fix the build.

Fixes: 22f37a2429 ("arm64: dts: add clocks for SC9860")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-04 23:55:52 +01:00
Chunyan Zhang
22f37a2429 arm64: dts: add clocks for SC9860
Some clocks on SC9860 are in the same address area with syscon devices,
those are what have a property of 'sprd,syscon' which would refer to
syscon devices, others would have a reg property indicated their address
ranges.

Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-04 17:50:39 +01:00
Chunyan Zhang
33d3ebd408 arm64: dts: add syscon for whale2 platform
Some clocks on SC9860 are in the same address area with syscon
devices, the proper syscon node will be quoted under the
definitions of those clocks in DT.

Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-04 17:50:21 +01:00
Linus Torvalds
37cb8e1f8e DeviceTree for 4.15:
- kbuild cleanups and improvements for dtbs
 
 - Code clean-up of overlay code and fixing for some long standing memory
   leak and race condition in applying overlays
 
 - Improvements to DT memory usage making sysfs/kobjects optional and
   skipping unflattening of disabled nodes. This is part of kernel
   tinification efforts.
 
 - Final piece of removing storing the full path for every DT node. The
   prerequisite conversion of printk's to use device_node format
   specifier happened in 4.14.
 
 - Sync with current upstream dtc. This brings additional checks to dtb
   compiling.
 
 - Binding doc tree wide removal of leading 0s from examples
 
 - RTC binding documentation adding missing devices and some
   consolidation of duplicated bindings
 
 - Vendor prefix documentation for nutsboard, Silicon Storage Technology,
   shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH,
   Opal Kelly, and Next Thing
 -----BEGIN PGP SIGNATURE-----
 
 iQItBAABCAAXBQJaCwaSEBxyb2JoQGtlcm5lbC5vcmcACgkQ+vtdtY28YcNzeA/8
 C8uQhSsX2+UQZvFzcEA8KQAMGT3kYdrcf+gidRKwCEUWg1qscUEpTb3n3Rm5NUbU
 RPD1s6GSlh6fJCMHDTQ6Tti/T59L7nZa2/AIGmUishGu4x4q1o18AobpFJmYP/EM
 SJPwnmm5RV9WcZFao1y+sY3Xtn8DStxHO4cS+dyF5/EvPN9D8nbLJfu7bgTBAZww
 HktIMB9kx+GTipRQZBvBwXoy5MJjthIZub4XwzesA4tGananj4cXlc0xaVxpdYy3
 5bO6q5F7cbrZ2uyrF+oIChpCENK4VaXh80m0WHc8EzaG++shzEkR4he1vYkwnV+I
 OYo4vsUg9dP8rBksUG1eYhS8fJKPvEBRNP7ETT5utVBy5I/tDEbo/crmQZRTIDIC
 hZbhcdZlISZj0DzkMK2ZHQV9UYtRWzXrJbZHFIPP12GCyvXVxYJUIWb9iYnUYSon
 KugygsFSpZHMWmfAhemw5/ctJZ19qhM5UIl2KZk5tMBHAf466ILmZjg0me6fYkOp
 eADfwHJ1dLMdK79CVMHSfp+vArcZXp35B16c3sWpJB36Il97Mc/9siEufCL4GKX7
 IBBnQBlbpSBKBejWVyI7Ip/Xp5u4qAQD+ZMJ9oLqBRqfWerHbDuOERlEOgwGqJYr
 9v4HvP7V8eVUvAdqXka4EBfCyAgUzXDAxG2Dfmv9vGU=
 =jgpN
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:
 "A bigger diffstat than usual with the kbuild changes and a tree wide
  fix in the binding documentation.

  Summary:

   - kbuild cleanups and improvements for dtbs

   - Code clean-up of overlay code and fixing for some long standing
     memory leak and race condition in applying overlays

   - Improvements to DT memory usage making sysfs/kobjects optional and
     skipping unflattening of disabled nodes. This is part of kernel
     tinification efforts.

   - Final piece of removing storing the full path for every DT node.
     The prerequisite conversion of printk's to use device_node format
     specifier happened in 4.14.

   - Sync with current upstream dtc. This brings additional checks to
     dtb compiling.

   - Binding doc tree wide removal of leading 0s from examples

   - RTC binding documentation adding missing devices and some
     consolidation of duplicated bindings

   - Vendor prefix documentation for nutsboard, Silicon Storage
     Technology, shimafuji, Tecon Microprocessor Technologies, DH
     electronics GmbH, Opal Kelly, and Next Thing"

* tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits)
  dt-bindings: usb: add #phy-cells to usb-nop-xceiv
  dt-bindings: Remove leading zeros from bindings notation
  kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib
  MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry
  kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile
  .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore
  .gitignore: sort normal pattern rules alphabetically
  dt-bindings: add vendor prefix for Next Thing Co.
  scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9
  of: dynamic: fix memory leak related to properties of __of_node_dup
  of: overlay: make pr_err() string unique
  of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove
  of: overlay: remove unneeded check for NULL kbasename()
  of: overlay: remove a dependency on device node full_name
  of: overlay: simplify applying symbols from an overlay
  of: overlay: avoid race condition between applying multiple overlays
  of: overlay: loosen overly strict phandle clash check
  of: overlay: expand check of whether overlay changeset can be removed
  of: overlay: detect cases where device tree may become corrupt
  of: overlay: minor restructuring
  ...
2017-11-14 18:25:40 -08:00
Masahiro Yamada
7e7962dd1a kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib
If CONFIG_OF_ALL_DTBS is enabled, "make ARCH=arm64 dtbs" compiles each
DTB twice; one from arch/arm64/boot/dts/*/Makefile and the other from
the dtb-$(CONFIG_OF_ALL_DTBS) line in arch/arm64/boot/dts/Makefile.
It could be a race problem when building DTBS in parallel.

Another minor issue is CONFIG_OF_ALL_DTBS covers only *.dts in vendor
sub-directories, so this broke when Broadcom added one more hierarchy
in arch/arm64/boot/dts/broadcom/<soc>/.

One idea to fix the issues in a clean way is to move DTB handling
to Kbuild core scripts.  Makefile.dtbinst already recognizes dtb-y
natively, so it should not hurt to do so.

Add $(dtb-y) to extra-y, and $(dtb-) as well if CONFIG_OF_ALL_DTBS is
enabled.  All clutter things in Makefiles go away.

As a bonus clean-up, I also removed dts-dirs.  Just use subdir-y
directly to traverse sub-directories.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[robh: corrected BUILTIN_DTB to CONFIG_BUILTIN_DTB]
Signed-off-by: Rob Herring <robh@kernel.org>
2017-11-09 17:03:07 -06:00
Masahiro Yamada
74ce1896c6 kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile
We need to add "clean-files" in Makfiles to clean up DT blobs, but we
often miss to do so.

Since there are no source files that end with .dtb or .dtb.S, so we
can clean-up those files from the top-level Makefile.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-11-08 11:20:24 -06:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Orson Zhai
3c0e3abd5e arm64: dts: Add basic DT to support Spreadtrum's SP9860G
SC9860G is a 8 cores of A53 SoC with 4G LTE support SoC from Spreadtrum.

According to regular hierarchy of sprd dts, whale2.dtsi contains SoC
peripherals IP nodes, sc9860.dtsi contains stuff related to ARM core stuff
and sp9860g dts is for the board level.

Signed-off-by: Orson Zhai <orson.zhai@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-04-27 21:56:14 +02:00
Chunyan Zhang
fe467ad1e4 arm64: dts: sprd: adding ETM entries to Spreadtrum SC9836
Since ETMv4 driver has been merged, this patch adds ETM nodes for SC9836,
and four funnel input ports to connect with ETM output ports.

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-15 06:00:22 -04:00
Chunyan Zhang
3341ada436 arm64: dts: sprd: adding coresight entries to Spreadtrum SC9836
Support only for ETF, FUNNEL, STM are included currently.
Support for ETM, TPIU and the replicator linked to it are not included in
this version patch.

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 12:50:55 -07:00
Zhizhou Zhang
c46388a586 arm64: dts: Add support for Spreadtrum SC9836 SoC in dts and Makefile
Adds the device tree support for Spreadtrum SC9836 SoC which is based on
Sharkl64 platform.

Sharkl64 platform contains the common nodes of Spreadtrum's arm64-based SoCs.

Signed-off-by: Zhizhou Zhang <zhizhou.zhang@spreadtrum.com>
Signed-off-by: Orson Zhai <orson.zhai@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-03-11 22:59:48 +01:00