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Author SHA1 Message Date
Linus Torvalds
dee02770cd MMC core: 
- Introduce host claiming by context to support blkmq
  - Preparations for enabling CQE (eMMC CMDQ) requests
  - Re-factorizations to prepare for blkmq support
  - Re-factorizations to prepare for CQE support
  - Fix signal voltage switch for SD cards without power cycle
  - Convert RPMB to a character device
  - Export eMMC revision via sysfs
  - Support eMMC DT binding for fixed driver type
  - Document mmc_regulator_get_supply() API
 
 MMC host:
  - omap_hsmmc: Updated regulator management for PBIAS
  - sdhci-omap: Add new OMAP SDHCI driver
  - meson-mx-sdio: New driver for the Amlogic Meson8 and Meson8b SoCs
  - sdhci-pci: Add support for Intel CDF
  - sdhci-acpi: Fix voltage switch for some Intel host controllers
  - sdhci-msm: Enable delay circuit calibration clocks
  - sdhci-msm: Manage power IRQ properly
  - mediatek: Add support of mt2701/mt2712
  - mediatek: Updates management of clocks and tunings
  - mediatek: Upgrade eMMC HS400 support
  - rtsx_pci: Update tuning for gen3 PCI-Express
  - renesas_sdhi: Support R-Car Gen[123] fallback compatibility strings
  - Catch all errors when getting regulators
  - Various additional improvements and cleanups
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Merge tag 'mmc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Introduce host claiming by context to support blkmq
   - Preparations for enabling CQE (eMMC CMDQ) requests
   - Re-factorizations to prepare for blkmq support
   - Re-factorizations to prepare for CQE support
   - Fix signal voltage switch for SD cards without power cycle
   - Convert RPMB to a character device
   - Export eMMC revision via sysfs
   - Support eMMC DT binding for fixed driver type
   - Document mmc_regulator_get_supply() API

 MMC host:
   - omap_hsmmc: Updated regulator management for PBIAS
   - sdhci-omap: Add new OMAP SDHCI driver
   - meson-mx-sdio: New driver for the Amlogic Meson8 and Meson8b SoCs
   - sdhci-pci: Add support for Intel CDF
   - sdhci-acpi: Fix voltage switch for some Intel host controllers
   - sdhci-msm: Enable delay circuit calibration clocks
   - sdhci-msm: Manage power IRQ properly
   - mediatek: Add support of mt2701/mt2712
   - mediatek: Updates management of clocks and tunings
   - mediatek: Upgrade eMMC HS400 support
   - rtsx_pci: Update tuning for gen3 PCI-Express
   - renesas_sdhi: Support R-Car Gen[123] fallback compatibility strings
   - Catch all errors when getting regulators
   - Various additional improvements and cleanups"

* tag 'mmc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (91 commits)
  sdhci-fujitsu: add support for setting the CMD_DAT_DELAY attribute
  dt-bindings: sdhci-fujitsu: document cmd-dat-delay property
  mmc: tmio: Replace msleep() of 20ms or less with usleep_range()
  mmc: dw_mmc: Convert timers to use timer_setup()
  mmc: dw_mmc: Cleanup the DTO timer like the CTO one
  mmc: vub300: Use common code in __download_offload_pseudocode()
  mmc: tmio: Use common error handling code in tmio_mmc_host_probe()
  mmc: Convert timers to use timer_setup()
  mmc: sdhci-acpi: Fix voltage switch for some Intel host controllers
  mmc: sdhci-acpi: Let devices define their own private data
  mmc: mediatek: perfer to use rise edge latching for cmd line
  mmc: mediatek: improve eMMC hs400 mode read performance
  mmc: mediatek: add latch-ck support
  mmc: mediatek: add support of source_cg clock
  mmc: mediatek: add stop_clk fix and enhance_rx support
  mmc: mediatek: add busy_check support
  mmc: mediatek: add async fifo and data tune support
  mmc: mediatek: add pad_tune0 support
  mmc: mediatek: make hs400_tune_response only for mt8173
  arm64: dts: mt8173: remove "mediatek, mt8135-mmc" from mmc nodes
  ...
 2017-11-13 10:17:35 -08:00
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
Wolfram Sang
79ea73b05a mmc: sdhci-pci: remove outdated declaration 
The function was removed half a year ago, so this declaration can go,
too.

Fixes: 51ced59cc0 ("mmc: sdhci-pci: Use ACPI DSM to get driver strength for some Intel devices")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
 2017-10-30 11:40:08 +01:00
Adrian Hunter
e1bfad6d93 mmc: sdhci-pci: Add support for drive strength selection for SPT 
Implement the select_drive_strength callback to provide
drive strength selection for Intel SPT.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
 2015-06-01 09:07:14 +02:00
Adrian Hunter
52c506f0bc mmc: sdhci-pci: add platform data 
Add a means of getting platform data for the SDHCI PCI
devices.  The data is stored against the slot not the
device in order to support multi-slot devices.

The data allows platform-specific setup (such as getting
GPIO numbers from firmware or setting up wl12xx for SDIO)
to be done in platform support files instead of the
sdhci-pci driver.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
 2012-01-11 23:58:47 -05:00