Commit Graph

23 Commits

Author SHA1 Message Date
Nathan Chancellor 0a07573c29 staging: board: Replace license boilerplate with SPDX identifiers
This satisfies a checkpatch.pl warning and is the preferred method for
notating the license due to its lack of ambiguity.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-06 19:11:23 -07:00
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
Jon Hunter 3468c9d9ef staging: board: Remove calls to of_genpd_get_from_provider()
Update the staging/board PM domain code to use the
of_genpd_add_subdomain() and remove any calls to
of_genpd_get_from_provider().

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-09-13 02:49:33 +02:00
Nikita Eshkeev d6a1b8d9db staging: board: line over 80 characters
This patch fixes the checkpatch.pl warning:

WARNING: line over 80 characters
+   .domain         = "/system-controller@e6180000/pm-domains/c5/a4lc@1"

Signed-off-by: Nikita Eshkeev <kastolom@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-29 17:58:02 -07:00
SirnamSwetha 377ef3e9ef Staging: board: Blank lines aren't necessary before a close brace
Fix checkpatch.pl issue

CHECK: Blank lines aren't necessary before a close brace

Signed-off-by: SirnamSwetha <theonly.ultimate@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07 19:57:22 -08:00
SirnamSwetha 19dac4dc21 Staging: board: Fix checkpatch.pl issue
This patch fixes the checkpatch issue.

CHECK: Please don't use multiple blank lines

Signed-off-by: SirnamSwetha <theonly.ultimate@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07 19:57:22 -08:00
Geert Uytterhoeven 1474136ce6 staging: board: armadillo800eva: Use "arm,pl390"
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18 10:21:10 +09:00
Geert Uytterhoeven cebbddb6f9 staging: board: kzm9d: Use "arm,pl390"
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18 10:21:06 +09:00
Tomeu Vizoso 2b18a0eb10 staging: board: Set PM domain before probe
PM domains shouldn't be modified after a device is probed, so set it
before device registration to be sure of that.

In the future the PM domain pointer will be set through a setter that
will WARN if the device has been probed already.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:05:57 +09:00
Geert Uytterhoeven f33b77408a staging: board: Migrate away from __pm_genpd_name_add_device()
The named genpd APIs are deprecated. Hence convert the board staging
code from using genpd names to DT node paths.

For now this supports PM domains with "#power-domain-cells = <0>" only.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-09-09 02:18:25 +02:00
Paul Gortmaker 59b750006a staging: make board support depend on OF_IRQ and CLKDEV_LOOKUP
Building allmodconfig for arch/cris currently fails with:

drivers/built-in.o: In function `board_staging_register_clock':
drivers/staging/board/board.c:131: undefined reference to `clk_add_alias'
make: *** [vmlinux] Error 1

The clk_add_alias lives in drivers/clk/clkdev.c and that file
is only compiled for CONFIG_CLKDEV_LOOKUP, so it would seem
we need to add a dependency on that.

Geert also reported seeing this in his build coverage:

  There seems to be another missing dependency on OF_IRQ:

  drivers/built-in.o: In function `board_staging_gic_fixup_resources':
  (.init.text+0x21c2): undefined reference to `irq_create_of_mapping'

so we might as well fix that at the same time since it is
on the same line.

Cc: Magnus Damm <damm+renesas@opensource.se>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-06 10:06:47 -07:00
Geert Uytterhoeven 1bbf29ab8f staging: board: armadillo800eva: Board staging for sh_mobile_lcdc_fb
Add staging board support for the r8a7740-based armadillo800eva board
and add platform devices to allow in-tree continuous development of the
drivers on the armadillo800eva board.

When DT bindings are ready for theses drivers then the platform devices
in the armadillo800eva staging board code can easily be removed. Until
then we use platform devices to continuously improve the driver and
integrate code.

Added platform devices:
  - sh_mobile_lcdc_fb for the on-board LCD.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-17 21:42:52 -07:00
Geert Uytterhoeven 225d68d852 staging: board: Add support for devices with complex dependencies
Add support for easy registering of one ore more platform devices that
may:
  - need clocks that are described in DT,
  - be part of a PM Domain.

All these dependencies are optional.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-17 21:42:51 -07:00
Geert Uytterhoeven a85890883e staging: board: kzm9d: Translate hwirq numbers to virq numbers
As of commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq
domain."), GIC IRQ numbers are virtual, breaking hardcoded hardware IRQ
numbers in platform device resources.

Translate the hardware IRQ numbers to virtual IRQ numbers to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-17 21:42:51 -07:00
Geert Uytterhoeven 72ee8626ee staging: board: Add support for translating hwirq to virq numbers
As of commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq
domain."), GIC IRQ numbers are virtual, breaking hardcoded hardware IRQ
numbers in platform device resources.

Add support for translating hardware IRQ numbers to virtual IRQ numbers,
and fixing up platform device resources with hardcoded IRQ numbers.

Add a copyright header, including the original author.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-17 21:42:51 -07:00
Geert Uytterhoeven b0c750f74e staging: board: Initialize staging board code earlier
Currently the staging board code is initialized from a late_initcall().
However, unused PM domains are also disabled from a late_initcall(),
which happens before due to link order.

Change the initialization of staging board code from using
late_initcall() to device_initcall() to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-17 21:42:51 -07:00
Geert Uytterhoeven d4f4708ae0 Revert "staging: board: disable as it breaks the build"
This reverts commit d13778d537.

Commit 13c1107253 ("staging:board: remove unnecessary function")
fixed the build of drivers/staging/board/board.c.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-17 21:42:51 -07:00
Linus Torvalds b11a278397 Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kconfig updates from Michal Marek:
 "Yann E Morin was supposed to take over kconfig maintainership, but
  this hasn't happened.  So I'm sending a few kconfig patches that I
  collected:

   - Fix for missing va_end in kconfig
   - merge_config.sh displays used if given too few arguments
   - s/boolean/bool/ in Kconfig files for consistency, with the plan to
     only support bool in the future"

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kconfig: use va_end to match corresponding va_start
  merge_config.sh: Display usage if given too few arguments
  kconfig: use bool instead of boolean for type definition attributes
2015-02-19 10:36:45 -08:00
Tsung-Han Lin 13c1107253 staging:board: remove unnecessary function
Remove the unnecessary 'of_can_translate_address',
which is already removed in commit
d9c6866be8 ("of: kill off
of_can_translate_address").

Signed-off-by: Tsung-Han Lin <tsunghan.tw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-17 16:17:11 -08:00
Christoph Jaeger 6341e62b21 kconfig: use bool instead of boolean for type definition attributes
Support for keyword 'boolean' will be dropped later on.

No functional change.

Reference: http://lkml.kernel.org/r/cover.1418003065.git.cj@linux.com
Signed-off-by: Christoph Jaeger <cj@linux.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-01-07 13:08:04 +01:00
Stephen Rothwell d13778d537 staging: board: disable as it breaks the build
Cc: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-10 14:47:27 -07:00
Magnus Damm f22f4ea5c6 staging: board: kzm9d: Board staging support for emxx_udc
Add staging board support for the KZM9D board and add
an emxx_udc platform device to allow in-tree continous
development of the driver on the KZM9D board.

When DT bindings are ready for the emxx_udc driver then
the platform device in the KZM9D staging board code can
easily be removed. Until then we use platform devices
to continously improve the driver and integration code.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-19 15:09:19 -07:00
Magnus Damm 382063d91e staging: board: Initial board staging support
Add staging board base support to allow continuous upstream
in-tree development and integration of platform devices.

Helps developers integrate devices as platform devices for
device drivers that only provide platform device bindings.
This in turn allows for incremental development of both
hardware feature support and DT binding work in parallel.

Two separate pieces of board staging functionality is
provided to ease per-board staging board support:
 - The board_staging() macro allows easy per-board callbacks
 - The board_staging_dt_node_available() provides DT node checking

Tested on the KZM9D board with the emxx_udc staging driver.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-19 15:08:20 -07:00