Commit Graph

13 Commits

Author SHA1 Message Date
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
Kishon Vijay Abraham I
45ea75eb92 ARM: dts: omap*: Replace deprecated "vmmc_aux" with "vqmmc"
Replace deprecated "vmmc_aux" with the generic "vqmmc" binding for
MMC IO supply.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-10 09:06:39 -07:00
Tony Lindgren
05306b848b ARM: dts: Configure USB host for 37xx-evm
Looks like nobody bothered to configure USB host for 37xx-evm
when we converted things to device tree, so let's add it. This
is similar to beagleboard configuration with few extra quirks
to configure the port. And as with beagleboard, OHCI won't work
because there is no USB LS/FS PHY. A HS USB hub is needed to use
devices like keyboard and mice.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-26 08:52:27 -07:00
Fabio Estevam
5c73cdf2bd ARM: dts: omap3: Remove 'enable-active-low' property
Property 'enable-active-low' does not exist. Only 'enable-active-high' is
valid, and when this property is absent the gpio regulator will act as
active low by default.

So remove the unexisting 'enable-active-low' property.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-19 11:41:02 -07:00
Javier Martinez Canillas
3a637e008e ARM: dts: Use defined GPIO constants in flags cell for OMAP2+ boards
Many OMAP2+ DTS are not using the defined constants to express
the GPIO polarity. Replace these so the DTS are easier to read.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:51:59 -07:00
Tony Lindgren
3704aae9e0 ARM: dts: Enable SDIO card interrupt for 37xx-evm
This allows to use the MMC1 slot with SDIO cards.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-20 14:48:35 -07:00
Eliad Peller
99f84cae43 ARM: dts: add wl12xx/wl18xx bindings
Replace all the pdata-quirks for setting wl12xx/wl18xx
platform data with proper DT definitions.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Tested-by: Nikita Kiryanov <nikita@compulab.co.il>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-03-24 09:48:14 -07:00
Tony Lindgren
8cf747f1e1 ARM: dts: Add twl keypad map for omap3 EVM
Looks like we're still missing the keypad map for EVM.
Let's add it since we have the binding now available
for the twl4030_keypad as otherwise we get the following
errors during the boot:

twl4030_keypad keypad.31: OF: linux,keymap property not defined
in /ocp/i2c@48070000/twl@48/keypad
twl4030_keypad keypad.31: Failed to build keymap
twl4030_keypad: probe of keypad.31 failed with error -2

Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-05 12:17:10 -08:00
Tony Lindgren
9188883fd6 ARM: dts: Enable twl4030 off-idle configuration for selected omaps
N900 now seems to shut down the external oscillator when hitting
off-idle.

And Beagle XM seems to have OSC_EN pin connected to allow shutting
down the oscillator looking at the schematics. The oscillator
output is cut off in off-idle and you can monitor it from R56 on
the bottom side of the board near the power jack. Note that for
beagle we need to also enable the UART wake-up event, the others
have that enabled in earlier patches.

OMAP37XX EVM (TMDSEVM3730) does not seem to have twl4030 clken
pin connected, so there is no point trying to enable shutting
down of the oscillator on it for the extra latency it adds.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-06-16 01:10:22 -07:00
Tony Lindgren
bc10f310e2 ARM: dts: Add LCD panel sharp ls037v7dw01 support for omap3-evm and ldp
Looks like quite a few omap3 boards have sharp ls037v7dw01 that's
configured as various panel dpi entries for whatever legacy reasons.
For device tree based support, let's just configure these properly for
panel ls037v7dw01 instead of panel dpi.

This patch creates a common file for panel ls037v7dw01, and makes
boards ldp and omap3-evm to use it.

The ls037v7dw01 also seems to be coupled with an ad7846 touchscreen
controller for the omaps, so let's add a basic configuration for
the touchscreen also using the default values.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-03 10:22:21 +03:00
Linus Torvalds
f9efbce633 ARM: SoC DT updates for 3.13
Most of this branch consists of updates, additions and general churn of
 the device tree source files in the kernel (arch/arm/boot/dts). Besides
 that, there are a few things to point out:
 
 - Lots of platform conversion on OMAP2+, with removal of old board files
   for various platforms.
 - Final conversion of a bunch of ux500 (ST-Ericsson) platforms as well
 - Some updates to pinctrl and other subsystems. Most of these are for
   DT-enablement of the various platforms and acks have been collected.
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Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC DT updates from Olof Johansson:
 "Most of this branch consists of updates, additions and general churn
  of the device tree source files in the kernel (arch/arm/boot/dts).
  Besides that, there are a few things to point out:

   - Lots of platform conversion on OMAP2+, with removal of old board
     files for various platforms.
   - Final conversion of a bunch of ux500 (ST-Ericsson) platforms as
     well
   - Some updates to pinctrl and other subsystems.  Most of these are
     for DT-enablement of the various platforms and acks have been
     collected"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (385 commits)
  ARM: dts: bcm11351: Use GIC/IRQ defines for sdio interrupts
  ARM: dts: bcm: Add missing UARTs for bcm11351 (bcm281xx)
  ARM: dts: bcm281xx: Add card detect GPIO
  ARM: dts: rename ARCH_BCM to ARCH_BCM_MOBILE (dt)
  ARM: bcm281xx: Add device node for the GPIO controller
  ARM: mvebu: Add Netgear ReadyNAS 104 board
  ARM: tegra: fix Tegra114 IOMMU register address
  ARM: kirkwood: add support for OpenBlocks A7 platform
  ARM: dts: omap4-panda: add DPI pinmuxing
  ARM: dts: AM33xx: Add RNG node
  ARM: dts: AM33XX: Add hwspinlock node
  ARM: dts: OMAP5: Add hwspinlock node
  ARM: dts: OMAP4: Add hwspinlock node
  ARM: dts: use 'status' property for PCIe nodes
  ARM: dts: sirf: add missed address-cells and size-cells for prima2 I2C
  ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodes
  ARM: dts: sirf: add missed graphics2d iobg in atlas6 dts
  ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dts
  ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and atlas6 dts
  ARM: mvebu: Add the core-divider clock to Armada 370/XP
  ...
2013-11-11 17:34:56 +09:00
Tony Lindgren
5992234bc5 ARM: dts: Add basic support for TMDSEVM3730 (Mistral AM/DM37x EVM)
I've tested the serial, MMC, smsc911x, wl12xx, and off-idle support
with the pinctrl patches, so it probably works better than the
board-*.c files ever did. Also the board-omap3evm.c file is broken
for the DSS, and has been for a while. Patches are welcome to fix
it in this .dts file, let's just drop the board-*.c file for this.

Note that off-idle currently requires doing request_irq() on the
wake-up pin from pinctrl-single IRQ domain until we can handle
that in some Linux generic way.

[tony@atomide.com: updated for make dtbs build fix]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-10-14 11:34:37 -07:00
Tony Lindgren
465ce68b46 ARM: dts: Add common support for omap3-evm
Looks like the main difference between the TMDSEVM3530 and
TMDSEVM3730 is just the omap processor:

http://www.ti.com/tool/tmdsevm3530
http://www.ti.com/tool/tmdsevm3730

So let's add a common file for the EVMs, and fix the description
for the omap3-evm.dst as that's clearly for the TMDSEVM3530
since it includes omap34xx.dtsi. It cannot support the TMDSEVM3730
properly, and we need a separate file for that in the following
patch.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-10-14 11:34:37 -07:00