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>
2017-11-01 08:07:57 -06:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2015-11-08 19:10:19 -07:00
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/*
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* Driver of Inno Codec for rk3036 by Rockchip Inc.
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*
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* Author: Zheng ShunQian<zhengsq@rock-chips.com>
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*/
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#ifndef _INNO_RK3036_CODEC_H
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#define _INNO_RK3036_CODEC_H
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/* codec registers */
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#define INNO_R00 0x00
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#define INNO_R01 0x0c
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#define INNO_R02 0x10
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#define INNO_R03 0x14
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#define INNO_R04 0x88
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#define INNO_R05 0x8c
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#define INNO_R06 0x90
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#define INNO_R07 0x94
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#define INNO_R08 0x98
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#define INNO_R09 0x9c
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#define INNO_R10 0xa0
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/* register bit filed */
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#define INNO_R00_CSR_RESET (0x0 << 0) /*codec system reset*/
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#define INNO_R00_CSR_WORK (0x1 << 0)
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#define INNO_R00_CDCR_RESET (0x0 << 1) /*codec digital core reset*/
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#define INNO_R00_CDCR_WORK (0x1 << 1)
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#define INNO_R00_PRB_DISABLE (0x0 << 6) /*power reset bypass*/
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#define INNO_R00_PRB_ENABLE (0x1 << 6)
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#define INNO_R01_I2SMODE_MSK (0x1 << 4)
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#define INNO_R01_I2SMODE_SLAVE (0x0 << 4)
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#define INNO_R01_I2SMODE_MASTER (0x1 << 4)
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#define INNO_R01_PINDIR_MSK (0x1 << 5)
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#define INNO_R01_PINDIR_IN_SLAVE (0x0 << 5) /*direction of pin*/
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#define INNO_R01_PINDIR_OUT_MASTER (0x1 << 5)
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#define INNO_R02_LRS_MSK (0x1 << 2)
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#define INNO_R02_LRS_NORMAL (0x0 << 2) /*DAC Left Right Swap*/
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#define INNO_R02_LRS_SWAP (0x1 << 2)
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#define INNO_R02_DACM_MSK (0x3 << 3)
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#define INNO_R02_DACM_PCM (0x3 << 3) /*DAC Mode*/
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#define INNO_R02_DACM_I2S (0x2 << 3)
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#define INNO_R02_DACM_LJM (0x1 << 3)
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#define INNO_R02_DACM_RJM (0x0 << 3)
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#define INNO_R02_VWL_MSK (0x3 << 5)
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#define INNO_R02_VWL_32BIT (0x3 << 5) /*1/2Frame Valid Word Len*/
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#define INNO_R02_VWL_24BIT (0x2 << 5)
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#define INNO_R02_VWL_20BIT (0x1 << 5)
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#define INNO_R02_VWL_16BIT (0x0 << 5)
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#define INNO_R02_LRCP_MSK (0x1 << 7)
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#define INNO_R02_LRCP_NORMAL (0x0 << 7) /*Left Right Polarity*/
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#define INNO_R02_LRCP_REVERSAL (0x1 << 7)
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#define INNO_R03_BCP_MSK (0x1 << 0)
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#define INNO_R03_BCP_NORMAL (0x0 << 0) /*DAC bit clock polarity*/
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#define INNO_R03_BCP_REVERSAL (0x1 << 0)
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#define INNO_R03_DACR_MSK (0x1 << 1)
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#define INNO_R03_DACR_RESET (0x0 << 1) /*DAC Reset*/
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#define INNO_R03_DACR_WORK (0x1 << 1)
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#define INNO_R03_FWL_MSK (0x3 << 2)
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#define INNO_R03_FWL_32BIT (0x3 << 2) /*1/2Frame Word Length*/
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#define INNO_R03_FWL_24BIT (0x2 << 2)
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#define INNO_R03_FWL_20BIT (0x1 << 2)
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#define INNO_R03_FWL_16BIT (0x0 << 2)
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#define INNO_R04_DACR_SW_SHIFT 0
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#define INNO_R04_DACL_SW_SHIFT 1
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#define INNO_R04_DACR_CLK_SHIFT 2
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#define INNO_R04_DACL_CLK_SHIFT 3
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#define INNO_R04_DACR_VREF_SHIFT 4
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#define INNO_R04_DACL_VREF_SHIFT 5
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#define INNO_R05_HPR_EN_SHIFT 0
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#define INNO_R05_HPL_EN_SHIFT 1
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#define INNO_R05_HPR_WORK_SHIFT 2
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#define INNO_R05_HPL_WORK_SHIFT 3
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#define INNO_R06_VOUTR_CZ_SHIFT 0
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#define INNO_R06_VOUTL_CZ_SHIFT 1
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#define INNO_R06_DACR_HILO_VREF_SHIFT 2
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#define INNO_R06_DACL_HILO_VREF_SHIFT 3
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#define INNO_R06_DAC_EN_SHIFT 5
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#define INNO_R06_DAC_PRECHARGE (0x0 << 4) /*PreCharge control for DAC*/
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#define INNO_R06_DAC_DISCHARGE (0x1 << 4)
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#define INNO_HP_GAIN_SHIFT 0
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/* Gain of output, 1.5db step: -39db(0x0) ~ 0db(0x1a) ~ 6db(0x1f) */
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#define INNO_HP_GAIN_0DB 0x1a
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#define INNO_HP_GAIN_N39DB 0x0
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#define INNO_R09_HP_ANTIPOP_MSK 0x3
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#define INNO_R09_HP_ANTIPOP_OFF 0x1
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#define INNO_R09_HP_ANTIPOP_ON 0x2
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#define INNO_R09_HPR_ANITPOP_SHIFT 0
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#define INNO_R09_HPL_ANITPOP_SHIFT 2
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#define INNO_R09_HPR_MUTE_SHIFT 4
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#define INNO_R09_HPL_MUTE_SHIFT 5
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#define INNO_R09_DACR_SWITCH_SHIFT 6
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#define INNO_R09_DACL_SWITCH_SHIFT 7
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#define INNO_R10_CHARGE_SEL_CUR_400I_YES (0x0 << 0)
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#define INNO_R10_CHARGE_SEL_CUR_400I_NO (0x1 << 0)
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#define INNO_R10_CHARGE_SEL_CUR_260I_YES (0x0 << 1)
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#define INNO_R10_CHARGE_SEL_CUR_260I_NO (0x1 << 1)
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#define INNO_R10_CHARGE_SEL_CUR_130I_YES (0x0 << 2)
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#define INNO_R10_CHARGE_SEL_CUR_130I_NO (0x1 << 2)
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#define INNO_R10_CHARGE_SEL_CUR_100I_YES (0x0 << 3)
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#define INNO_R10_CHARGE_SEL_CUR_100I_NO (0x1 << 3)
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#define INNO_R10_CHARGE_SEL_CUR_050I_YES (0x0 << 4)
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#define INNO_R10_CHARGE_SEL_CUR_050I_NO (0x1 << 4)
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#define INNO_R10_CHARGE_SEL_CUR_027I_YES (0x0 << 5)
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#define INNO_R10_CHARGE_SEL_CUR_027I_NO (0x1 << 5)
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#define INNO_R10_MAX_CUR (INNO_R10_CHARGE_SEL_CUR_400I_YES | \
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INNO_R10_CHARGE_SEL_CUR_260I_YES | \
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INNO_R10_CHARGE_SEL_CUR_130I_YES | \
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INNO_R10_CHARGE_SEL_CUR_100I_YES | \
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INNO_R10_CHARGE_SEL_CUR_050I_YES | \
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INNO_R10_CHARGE_SEL_CUR_027I_YES)
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#endif
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