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2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
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>
2017-06-13ARM: dts: tegra: fix PCI bus dtc warningsRob Herring1-1/+1
dtc recently added PCI bus checks. Fix these warnings. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-tegra@vger.kernel.org Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-07ARM: tegra: apalis/colibri t30: Integrate audioMarcel Ziswiler1-0/+49
Integrate Freescale SGTL5000 analogue audio codec support. Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> [treding@nvidia.com: remove leading 0 from unit-address] Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-07-11ARM: tegra: Add spaces around = in propertiesThierry Reding1-2/+3
This seems to have been copied and pasted since the beginning of time, though only until Tegra124, likely because that DT was written from scratch or it was fixed along the way. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-07-11ARM: tegra: Fix a couple of DTC warningsThierry Reding1-1/+1
Add unit-addresses to nodes that have a reg property to avoid warnings on newer versions of DTC. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-09-15ARM: tegra: apalis: Properly align pin namesThierry Reding1-76/+76
Align pin names on subsequent lines with the first the name of the first pin in the first line. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-09-15ARM: tegra: apalis: Add digital audio pin muxingMarcel Ziswiler1-0/+24
Add Apalis digital audio pin muxing which is e.g. used for HDA operation together with the Realtek HDA codec as found on the Apalis Evaluation board. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-09-15ARM: tegra: apalis: Add comment concerning eMMCMarcel Ziswiler1-0/+1
Instead of adding an otherwise unused emmc label just add a comment describing what the SDHCI is routed to. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-09-15ARM: tegra: apalis: Fix pin muxingMarcel Ziswiler1-9/+9
Fix pin muxing which got broken due to certain stuff having been fixed or renamed since. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-09-15ARM: tegra: apalis: Fix HDMI power suppliesMarcel Ziswiler1-5/+27
Fix HDMI supplies (both regular VDD as well as PLL ones) being switched by the TPS65911 PMIC's GPIO6 aka EN_VDD_HDMI by introducing two new GPIO switched fixed regulators avdd_hdmi_pll_1v8_reg and avdd_hdmi_3v3_reg. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-09-15ARM: tegra: apalis: Update hardware revisions compatibility commentMarcel Ziswiler1-2/+3
Update introductory comment about what exact hardware revisions this device tree is compatible with as a hint for our customers. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-08-24ARM: tegra: apalis/colibri t30: fix on-module 5v0 suppliesMarcel Ziswiler1-1/+10
Working on Gigabit/PCIe support in U-Boot for Apalis T30 I realised that the current device tree source includes for our modules only happen to work due to referencing the on-carrier 5v0 supply from USB which is not at all available on-module. The modules actually contain TPS60150 charge pumps to generate the PMIC required 5 volts from the one and only 3.3 volt module supply. This patch fixes this. (Note: When back-porting this to v3.16 stable releases, simply drop the change to tegra30-apalis.dtsi; that file was added in v3.17) Cc: <stable@vger.kernel.org> #v3.16+ Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-17ARM: tegra: Migrate Apalis T30 PCIe power supply schemeMarcel Ziswiler1-3/+8
This migration is required for continued PCIe operation after commit d3c7e24b84fc "PCI: tegra: Implement accurate power supply scheme". Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> [swarren: added commit subject and shortened hash] Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-07-17ARM: tegra: initial support for apalis t30Marcel Ziswiler1-0/+673
This patch adds the device tree to support Toradex Apalis T30, a computer on module which can be used on different carrier boards. The module consists of a Tegra 3 SoC, two PMICs, 1 or 2 GB of DDR3L RAM, eMMC, an LM95245 temperature sensor chip, an i210 resp. i211 gigabit Ethernet controller, an STMPE811 ADC/touch controller as well as two MCP2515 CAN controllers. Furthermore, there is an SGTL5000 audio codec which is not yet supported. Anything that is not self contained on the module is disabled by default. The device tree for the Evaluation Board includes the modules device tree and enables the supported peripherals of the carrier board (the Evaluation Board supports almost all of them). While at it also add the device tree binding documentation for Apalis T30. Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> [swarren: fixed some node sort orders] Signed-off-by: Stephen Warren <swarren@nvidia.com>