Skip to content
  1. Dec 26, 2017
  3. Nov 09, 2017
    • Masahiro Yamada's avatar
      kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib · 7e7962dd
      Masahiro Yamada authored 
      

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: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
[robh: corrected BUILTIN_DTB to CONFIG_BUILTIN_DTB]
Signed-off-by: default avatarRob Herring <robh@kernel.org>
      7e7962dd
  5. Nov 08, 2017
  7. Nov 04, 2017
  9. Nov 02, 2017
    • Greg Kroah-Hartman's avatar
      License cleanup: add SPDX GPL-2.0 license identifier to files with no license · b2441318
      Greg Kroah-Hartman authored 
      

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: default avatarKate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: default avatarPhilippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      b2441318
  11. Oct 23, 2017
  13. Oct 12, 2017
  15. Oct 11, 2017
  17. Oct 09, 2017
  19. Oct 06, 2017
    • Icenowy Zheng's avatar
      ARM: dts: sun8i: Add board dts file for Banana Pi M2 Berry · 23edc168
      Icenowy Zheng authored 
      

The Banana Pi M2 Ultra is an SBC based on the Allwinner V40 SoC (same as
the R40 SoC). The form factor is similar to the Raspberry Pi series.

It features:

- X-Powers AXP221s PMIC connected to i2c0
- 1GiB DDR3 DRAM
- microSD slot
- MicroUSB Type-B port for power and connected to usb0
- HDMI output
- MIPI DSI connector
- 4 USB Type-A ports (connected to the usb1 controller via a hub)
- gigabit ethernet with Realtek RTL8211E transceiver
- WiFi/Bluetooth with AP6212 module, with external antenna connector
- SATA and power connectors for native SATA support
- camera sensor connector
- audio out headphone jack
- red and green LEDs
- debug UART pins
- Raspberry Pi B+ compatible GPIO header
- power and reset buttons

This patch adds a dts file that enables UART, MMC and PMIC support.

Signed-off-by: default avatarIcenowy Zheng <icenowy@aosc.io>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
      23edc168
    • Chen-Yu Tsai's avatar
      ARM: dts: sun8i: Add board dts file for Banana Pi M2 Ultra · da7ac948
      Chen-Yu Tsai authored 
      

The Banana Pi M2 Ultra is an SBC based on the Allwinner R40 SoC. The
form factor and position of various connectors, leds and buttons is
similar to the Banana Pi M1+, Banana Pi M3, and is exactly the same
as the latest Banana Pi M64.

It features:

  - X-Powers AXP221s PMIC connected to i2c0
  - 2 GB DDR3 DRAM
  - 8 GB eMMC
  - micro SD card slot
  - DC power jack
  - HDMI output
  - MIPI DSI connector
  - 2x USB 2.0 hosts
  - 1x USB 2.0 OTG
  - gigabit ethernet with Realtek RTL8211E transceiver
  - WiFi/Bluetooth with AP6212 chip, with external antenna connector
  - SATA and power connectors for native SATA support
  - camera sensor connector
  - consumer IR receiver
  - audio out headphone jack
  - onboard microphone
  - red, green, and blue LEDs
  - debug UART pins
  - Li-Po battery connector
  - Raspberry Pi B+ compatible GPIO header
  - power, reset, and boot control buttons

This patch adds a dts file that enables UART, MMC and PMIC support.

Signed-off-by: default avatarChen-Yu Tsai <wens@csie.org>
Signed-off-by: default avatarIcenowy Zheng <icenowy@aosc.io>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
      da7ac948
  21. Oct 02, 2017
  23. Sep 22, 2017
  25. Sep 20, 2017
  27. Sep 19, 2017
  29. Sep 17, 2017
  31. Sep 16, 2017
  33. Aug 19, 2017
    • Chen-Yu Tsai's avatar
      ARM: sun8i: a83t: Add device tree for Sinovoip Bananapi BPI-M3 · 359b5a1e
      Chen-Yu Tsai authored 
      

The BPI-M3 is an Allwinner A83T based SBC in the Bananapi/Bpi family.
It is roughly the same form factor as the BPI-M1+, with roughly the
same peripherals and connectors:

  - 2GB LPDDR3 DRAM
  - 8GB eMMC
  - Micro-SD card slot
  - HDMI output
  - Headset (stereo + mic) jack
  - Onboard mic
  - Gigabit Ethernet with RTL8211E transceiver
  - Ampak AP6212 WiFi + BT
  - USB OTG connector
  - USB-to-SATA bridge connected through a USB 2.0 hub
  - Consumer IR receiver
  - MIPI DSI LCD panel connector
  - Camera interface (parallel and MIPI CSI) connector
  - 3 LEDs (Red, Green, Blue), of which 2 are controllable (GB)
  - Raspberry Pi 2 compatible GPIO header

Signed-off-by: default avatarChen-Yu Tsai <wens@csie.org>
      359b5a1e
  35. Aug 17, 2017
  37. Aug 14, 2017