Commit Graph

3166 Commits

Author SHA1 Message Date
Linus Torvalds
d3092e4e99 - New Drivers
- Add support for Cherry Trail Dollar Cove TI PMIC
    - Add support for Add Spreadtrum SC27xx series PMICs
 
  - New Device Support
    - Add support Regulator to axp20x
 
  - New Functionality
    - Add DT support; aspeed-scu sc27xx-pmic
    - Add power saving support; rts5249
 
  - Fix-ups
    - DT clean-up/rework; tps65217, max77693, iproc-cdru, iproc-mhb, tps65218
    - Staticise/constify; stw481x
    - Use new succinct IRQ API; fsl-imx25-tsadc
    - Kconfig fix-ups; MFD_TPS65218
    - Identify SPI method; lpc_ich
    - Use managed resources (devm_*) calls; ssbi
    - Remove unused/obsolete code/documentation; mc13xxx
 
  - Bug Fixes
    - Fix typo in MAINTAINERS
    - Fix error handling; mxs-lradc
    - Clean-up IRQs on .remove; fsl-imx25-tsadc
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Merge tag 'mfd-next-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New drivers:
   - Add support for Cherry Trail Dollar Cove TI PMIC
   - Add support for Add Spreadtrum SC27xx series PMICs

  New device support:
   - Add support Regulator to axp20x

  New functionality:
   - Add DT support; aspeed-scu sc27xx-pmic
   - Add power saving support; rts5249

  Fix-ups:
   - DT clean-up/rework; tps65217, max77693, iproc-cdru, iproc-mhb, tps65218
   - Staticise/constify; stw481x
   - Use new succinct IRQ API; fsl-imx25-tsadc
   - Kconfig fix-ups; MFD_TPS65218
   - Identify SPI method; lpc_ich
   - Use managed resources (devm_*) calls; ssbi
   - Remove unused/obsolete code/documentation; mc13xxx

  Bug fixes:
   - Fix typo in MAINTAINERS
   - Fix error handling; mxs-lradc
   - Clean-up IRQs on .remove; fsl-imx25-tsadc"

* tag 'mfd-next-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (21 commits)
  dt-bindings: mfd: mc13xxx: Remove obsolete property
  mfd: axp20x: Add axp20x-regulator cell for AXP813
  mfd: Add Spreadtrum SC27xx series PMICs driver
  dt-bindings: mfd: Add Spreadtrum SC27xx PMIC documentation
  mfd: ssbi: Use devm_of_platform_populate()
  mfd: fsl-imx25: Clean up irq settings during removal
  mfd: mxs-lradc: Fix error handling in mxs_lradc_probe()
  mfd: lpc_ich: Avoton/Rangeley uses SPI_BYT method
  mfd: tps65218: Introduce dependency on CONFIG_OF
  mfd: tps65218: Correct the config description
  MAINTAINERS: Fix Dialog search term for watchdog binding file
  mfd: fsl-imx25: Set irq handler and data in one go
  mfd: rts5249: Add support for RTS5250S power saving
  ACPI / PMIC: Add opregion driver for Intel Dollar Cove TI PMIC
  mfd: Add support for Cherry Trail Dollar Cove TI PMIC
  syscon: dt-bindings: Add binding document for iProc MHB block
  syscon: dt-bindings: Add binding doc for Broadcom iProc CDRU
  mfd: max77693: Add muic of_compatible in mfd_cell
  mfd: stw481x: Make three arrays static const, reduces object code size
  mfd: tps65217: Introduce dependency on CONFIG_OF
  ...
2017-11-16 09:15:57 -08:00
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
Mark Brown
50b7baefe3
Merge remote-tracking branches 'regulator/topic/da9211', 'regulator/topic/pfuze100' and 'regulator/topic/tps65218' into regulator-next 2017-11-10 21:33:23 +00:00
Mark Brown
9b272e6118
Merge remote-tracking branch 'regulator/topic/qcom-spmi' into regulator-next 2017-11-10 21:33:22 +00:00
Mark Brown
28c426c7ad
Merge remote-tracking branch 'regulator/topic/axp20x' into regulator-next 2017-11-10 21:33:20 +00:00
Mark Brown
46294d669c
Merge remote-tracking branch 'regulator/fix/qcom-spmi' into regulator-linus 2017-11-10 21:33:18 +00:00
Keerthy
efeb88c68b
regulator: tps65218: Fix strobe assignment
Currentlly tps_info structure is no longer used. So use the
strobes parameter in tps65218 structure to capture the info.

Fixes: 2dc4940360 (regulator: tps65218: Remove all the compatibles)
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-10 12:33:12 +00:00
Linus Torvalds
ead751507d License cleanup: add SPDX license identifiers to some files
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>
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Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull initial SPDX identifiers from Greg KH:
 "License cleanup: add SPDX license identifiers to some files

  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>"

* tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  License cleanup: add SPDX license identifier to uapi header files with a license
  License cleanup: add SPDX license identifier to uapi header files with no license
  License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 10:04:46 -07:00
Stephen Boyd
ab953b9db3
regulator: qcom_spmi: Include offset when translating voltages
This driver converts voltages from a non-linear range in hardware
to a linear range in software and vice versa. During the
conversion, we exclude certain voltages that are invalid to use
because the software interface is more flexible than reality.

For example, the FTSMPS2P5 regulators have a voltage range from
80000uV to 1355000uV that software could support, but we only
want to use the range of 350000uV to 1355000uV. If we don't
account for the hw selectors between 80000uV and 350000uV we'll
pick a hw selector of 0 to mean 350000uV when it really means
80000uV. This can cause us to program voltages into the hardware
that are significantly lower than what we're expecting.

And when we read it back from the hardware we'll have the same
problem, voltages that are in the invalid band will end up being
calculated as some software selector that represents a larger
voltage than what is programmed and the user will be confused.

Fix all this by properly offsetting the software selector and hw
selector when converting from one number space to another.

Fixes: 1b5b196892 ("regulator: qcom_spmi: Only use selector based regulator ops")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-02 16:11:28 +00:00
Rajendra Nayak
ca5cd8c940
regulator: qcom_spmi: Add support for pmi8994
Document the regulators available on pmi8994 and add support for
this PMIC to the SPMI PMIC regulator driver.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-02 11:25:00 +00:00
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
James Ban
707ce9eac5
regulator: da9211: update for supporting da9223/4/5
This is update for supporting additional devices da9223/4/5.
Only device strings is added because only package type is different.

Signed-off-by: James Ban <James.Ban..opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-31 11:01:14 +00:00
Ulf Hansson
35ed78a044 Merge branch 'omap_hsmmc' into next 2017-10-30 11:36:42 +01:00
Mark Brown
2ab19d521e Merge remote-tracking branches 'regulator/fix/axp20x' and 'regulator/fix/rn5t618' into regulator-linus 2017-10-23 11:46:30 +02:00
Axel Lin
ad92ceaf35 regulator: axp20x: Simplify axp20x_is_polyphase_slave implementation
The code to handle AXP803_ID and AXP813_ID cases are exactly the same.
Make the switch-case fall through to avoid duplicate code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-18 11:26:49 +01:00
Leonard Crestez
d824c7a8e8 regulator: rn5t618: Do not index regulator_desc arrays by id
The regulator_desc arrays in this driver are indexed by RN5T618_*
constants and some elements can be missing. This causes probe failures
on older models:

rn5t618-regulator rn5t618-regulator: failed to register (null) regulator
rn5t618-regulator: probe of rn5t618-regulator failed with error -22

Fix this by making the arrays flat. This also saves a little memory
because the regulator_desc arrays become smaller.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Fixes: 83b2a3c2ab ("regulator: rn5t618: add RC5T619 PMIC support")
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-18 11:23:21 +01:00
Keerthy
511cb17448 mfd: tps65217: Introduce dependency on CONFIG_OF
Currently the driver boots only via device tree hence add a
dependency on CONFIG_OF. This leaves with a bunch of unused code
so clean that up. This patch also makes use of probe_new function
in place of the probe function so as to avoid passing i2c_device_id.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-10-13 10:42:58 +01:00
Chen-Yu Tsai
d81851c176 regulator: axp20x: Add support for AXP813 regulators
The AXP813 PMIC has 7 DC-DC buck regulators, 16 LDOs (including the
fixed RTC LDO and 2 GPIO LDOs), and 1 switchable. The drive-vbus
feature is also supported. All the hardware details are very similar
to the AXP803, with the following exceptions:

  - Extra DCDC7 buck regulator, with the same range as DCDC6

  - SWitch now has a separate supply pin, instead of being chained
    internaly from DCDC1

  - RTC LDO output voltage is now 1.8V

  - FLDO3 is an LDO with switchable supplies, but unconfigurable output
    voltage. The voltage is always half that of its supply.

Support for FLDO3 is currently unimplemented, as it requires runtime
switching of its supplies, something the regulator subsystem does not
support. It is not used in either the reference designs nor actually
produced boards available.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-04 11:49:04 +01:00
Chen-Yu Tsai
986e7b7e49 regulator: axp20x: Fix poly-phase bit offset for AXP803 DCDC5/6
The bit offset used to check if DCDC5 and DCDC6 are tied together in
poly-phase output is wrong. It was checking against a reserved bit,
which is always false.

In reality, neither the reference design layout nor actually produced
boards tie these two buck regulators together. But we should still
fix it, just in case.

Fixes: 1dbe0ccb06 ("regulator: axp20x-regulator: add support for AXP803")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-10-04 11:48:21 +01:00
Ulf Hansson
7aaa2b64c9 regulator: Add support for different OMAP variants in the pbias regulator
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Merge tag 'regulator-pbias-variants'

This pulls in a regulator change for OMAP from
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

regulator: Add support for different OMAP variants in the pbias regulator

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-09-22 09:46:40 +02:00
Linus Torvalds
968c61f7da - New Drivers
- RK805 Power Management IC (PMIC)
    - ROHM BD9571MWV-M MFD Power Management IC (PMIC)
    - Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs
 
  - New Device Support
    - Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
    - Add support for X-Powers AXP806 to axp20x
    - Add support for X-Powers AXP813 to axp20x
    - Add support for Intel Sunrise Point LPSS to intel-lpss-pci
 
  - New Functionality
    - Amend API to provide register layout; atmel-smc
 
 - Fix-ups
    - DT re-work; omap, nokia
    - Header file location change {I2C => MFD}; dm355evm_msp, tps65010
    - Fix chip ID formatting issue(s); rk808
    - Optionally register touchscreen devices; da9052-core
    - Documentation improvements; twl-core
    - Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
    - Drop unnecessary static declaration; max8925-i2c
    - Kconfig changes (missing deps and remove module support)
    - Slim down oversized licence statement; hi6421-pmic-core
    - Use managed resources (devm_*); lp87565
    - Supply proper error checking/handling; t7l66xb
 
  - Bug Fixes
    - Fix counter duplication issue; da9052-core
    - Fix potential NULL deference issue; max8998
    - Leave SPI-NOR write-protection bit alone; lpc_ich
    - Ensure device is put into reset during suspend; intel-lpss
    - Correct register offset variable size; omap-usb-tll
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Merge tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers
   - RK805 Power Management IC (PMIC)
   - ROHM BD9571MWV-M MFD Power Management IC (PMIC)
   - Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs

  New Device Support:
   - Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
   - Add support for X-Powers AXP806 to axp20x
   - Add support for X-Powers AXP813 to axp20x
   - Add support for Intel Sunrise Point LPSS to intel-lpss-pci

  New Functionality:
   - Amend API to provide register layout; atmel-smc

  Fix-ups:
   - DT re-work; omap, nokia
   - Header file location change {I2C => MFD}; dm355evm_msp, tps65010
   - Fix chip ID formatting issue(s); rk808
   - Optionally register touchscreen devices; da9052-core
   - Documentation improvements; twl-core
   - Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
   - Drop unnecessary static declaration; max8925-i2c
   - Kconfig changes (missing deps and remove module support)
   - Slim down oversized licence statement; hi6421-pmic-core
   - Use managed resources (devm_*); lp87565
   - Supply proper error checking/handling; t7l66xb

  Bug Fixes:
   - Fix counter duplication issue; da9052-core
   - Fix potential NULL deference issue; max8998
   - Leave SPI-NOR write-protection bit alone; lpc_ich
   - Ensure device is put into reset during suspend; intel-lpss
   - Correct register offset variable size; omap-usb-tll"

* tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (61 commits)
  mfd: intel_soc_pmic: Differentiate between Bay and Cherry Trail CRC variants
  mfd: intel_soc_pmic: Export separate mfd-cell configs for BYT and CHT
  dt-bindings: mfd: Add bindings for ZII RAVE devices
  mfd: omap-usb-tll: Fix register offsets
  mfd: da9052: Constify spi_device_id
  mfd: intel-lpss: Put I2C and SPI controllers into reset state on suspend
  mfd: da9055: Constify i2c_device_id
  mfd: intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices
  mfd: t7l66xb: Handle return value of clk_prepare_enable
  mfd: Add ROHM BD9571MWV-M PMIC DT bindings
  mfd: intel_soc_pmic_chtwc: Turn Kconfig option into a bool
  mfd: lp87565: Convert to use devm_mfd_add_devices()
  mfd: Add support for TPS68470 device
  mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
  mfd: syscon: atmel-smc: Add helper to retrieve register layout
  mfd: axp20x: Use correct platform device ID for many PEK
  dt-bindings: mfd: axp20x: Introduce bindings for AXP813
  mfd: axp20x: Add support for AXP813 PMIC
  dt-bindings: mfd: axp20x: Add AXP806 to supported list of chips
  mfd: Add ROHM BD9571MWV-M MFD PMIC driver
  ...
2017-09-07 13:51:13 -07:00
Linus Torvalds
439644096c Power management updates for v4.14-rc1
- Drop the P-state selection algorithm based on a PID controller
    from intel_pstate and make it use the same P-state selection
    method (based on the CPU load) for all types of systems in the
    active mode (Rafael Wysocki, Srinivas Pandruvada).
 
  - Rework the cpufreq core and governors to make it possible to
    take cross-CPU utilization updates into account and modify the
    schedutil governor to actually do so (Viresh Kumar).
 
  - Clean up the handling of transition latency information in the
    cpufreq core and untangle it from the information on which drivers
    cannot do dynamic frequency switching (Viresh Kumar).
 
  - Add support for new SoCs (MT2701/MT7623 and MT7622) to the
    mediatek cpufreq driver and update its DT bindings (Sean Wang).
 
  - Modify the cpufreq dt-platdev driver to autimatically create
    cpufreq devices for the new (v2) Operating Performance Points
    (OPP) DT bindings and update its whitelist of supported systems
    (Viresh Kumar, Shubhrajyoti Datta, Marc Gonzalez, Khiem Nguyen,
    Finley Xiao).
 
  - Add support for Ux500 to the cpufreq-dt driver and drop the
    obsolete dbx500 cpufreq driver (Linus Walleij, Arnd Bergmann).
 
  - Add new SoC (R8A7795) support to the cpufreq rcar driver (Khiem
    Nguyen).
 
  - Fix and clean up assorted issues in the cpufreq drivers and core
    (Arvind Yadav, Christophe Jaillet, Colin Ian King, Gustavo Silva,
    Julia Lawall, Leonard Crestez, Rob Herring, Sudeep Holla).
 
  - Update the IO-wait boost handling in the schedutil governor to
    make it less aggressive (Joel Fernandes).
 
  - Rework system suspend diagnostics to make it print fewer messages
    to the kernel log by default, add a sysfs knob to allow more
    suspend-related messages to be printed and add Low Power S0 Idle
    constraints checks to the ACPI suspend-to-idle code (Rafael
    Wysocki, Srinivas Pandruvada).
 
  - Prefer suspend-to-idle over S3 on ACPI-based systems with the
    ACPI_FADT_LOW_POWER_S0 flag set and the Low Power Idle S0 _DSM
    interface present in the ACPI tables (Rafael Wysocki).
 
  - Update documentation related to system sleep and rename a number
    of items in the code to make it cleare that they are related to
    suspend-to-idle (Rafael Wysocki).
 
  - Export a variable allowing device drivers to check the target
    system sleep state from the core system suspend code (Florian
    Fainelli).
 
  - Clean up the cpuidle subsystem to handle the polling state on
    x86 in a more straightforward way and to use %pOF instead of
    full_name (Rafael Wysocki, Rob Herring).
 
  - Update the devfreq framework to fix and clean up a few minor
    issues (Chanwoo Choi, Rob Herring).
 
  - Extend diagnostics in the generic power domains (genpd) framework
    and clean it up slightly (Thara Gopinath, Rob Herring).
 
  - Fix and clean up a couple of issues in the operating performance
    points (OPP) framework (Viresh Kumar, Waldemar Rymarkiewicz).
 
  - Add support for RV1108 to the rockchip-io Adaptive Voltage Scaling
    (AVS) driver (David Wu).
 
  - Fix the usage of notifiers in CPU power management on some
    platforms (Alex Shi).
 
  - Update the pm-graph system suspend/hibernation and boot profiling
    utility (Todd Brandt).
 
  - Make it possible to run the cpupower utility without CPU0 (Prarit
    Bhargava).
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Merge tag 'pm-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "This time (again) cpufreq gets the majority of changes which mostly
  are driver updates (including a major consolidation of intel_pstate),
  some schedutil governor modifications and core cleanups.

  There also are some changes in the system suspend area, mostly related
  to diagnostics and debug messages plus some renames of things related
  to suspend-to-idle. One major change here is that suspend-to-idle is
  now going to be preferred over S3 on systems where the ACPI tables
  indicate to do so and provide requsite support (the Low Power Idle S0
  _DSM in particular). The system sleep documentation and the tools
  related to it are updated too.

  The rest is a few cpuidle changes (nothing major), devfreq updates,
  generic power domains (genpd) framework updates and a few assorted
  modifications elsewhere.

  Specifics:

   - Drop the P-state selection algorithm based on a PID controller from
     intel_pstate and make it use the same P-state selection method
     (based on the CPU load) for all types of systems in the active mode
     (Rafael Wysocki, Srinivas Pandruvada).

   - Rework the cpufreq core and governors to make it possible to take
     cross-CPU utilization updates into account and modify the schedutil
     governor to actually do so (Viresh Kumar).

   - Clean up the handling of transition latency information in the
     cpufreq core and untangle it from the information on which drivers
     cannot do dynamic frequency switching (Viresh Kumar).

   - Add support for new SoCs (MT2701/MT7623 and MT7622) to the mediatek
     cpufreq driver and update its DT bindings (Sean Wang).

   - Modify the cpufreq dt-platdev driver to autimatically create
     cpufreq devices for the new (v2) Operating Performance Points (OPP)
     DT bindings and update its whitelist of supported systems (Viresh
     Kumar, Shubhrajyoti Datta, Marc Gonzalez, Khiem Nguyen, Finley
     Xiao).

   - Add support for Ux500 to the cpufreq-dt driver and drop the
     obsolete dbx500 cpufreq driver (Linus Walleij, Arnd Bergmann).

   - Add new SoC (R8A7795) support to the cpufreq rcar driver (Khiem
     Nguyen).

   - Fix and clean up assorted issues in the cpufreq drivers and core
     (Arvind Yadav, Christophe Jaillet, Colin Ian King, Gustavo Silva,
     Julia Lawall, Leonard Crestez, Rob Herring, Sudeep Holla).

   - Update the IO-wait boost handling in the schedutil governor to make
     it less aggressive (Joel Fernandes).

   - Rework system suspend diagnostics to make it print fewer messages
     to the kernel log by default, add a sysfs knob to allow more
     suspend-related messages to be printed and add Low Power S0 Idle
     constraints checks to the ACPI suspend-to-idle code (Rafael
     Wysocki, Srinivas Pandruvada).

   - Prefer suspend-to-idle over S3 on ACPI-based systems with the
     ACPI_FADT_LOW_POWER_S0 flag set and the Low Power Idle S0 _DSM
     interface present in the ACPI tables (Rafael Wysocki).

   - Update documentation related to system sleep and rename a number of
     items in the code to make it cleare that they are related to
     suspend-to-idle (Rafael Wysocki).

   - Export a variable allowing device drivers to check the target
     system sleep state from the core system suspend code (Florian
     Fainelli).

   - Clean up the cpuidle subsystem to handle the polling state on x86
     in a more straightforward way and to use %pOF instead of full_name
     (Rafael Wysocki, Rob Herring).

   - Update the devfreq framework to fix and clean up a few minor issues
     (Chanwoo Choi, Rob Herring).

   - Extend diagnostics in the generic power domains (genpd) framework
     and clean it up slightly (Thara Gopinath, Rob Herring).

   - Fix and clean up a couple of issues in the operating performance
     points (OPP) framework (Viresh Kumar, Waldemar Rymarkiewicz).

   - Add support for RV1108 to the rockchip-io Adaptive Voltage Scaling
     (AVS) driver (David Wu).

   - Fix the usage of notifiers in CPU power management on some
     platforms (Alex Shi).

   - Update the pm-graph system suspend/hibernation and boot profiling
     utility (Todd Brandt).

   - Make it possible to run the cpupower utility without CPU0 (Prarit
     Bhargava)"

* tag 'pm-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (87 commits)
  cpuidle: Make drivers initialize polling state
  cpuidle: Move polling state initialization code to separate file
  cpuidle: Eliminate the CPUIDLE_DRIVER_STATE_START symbol
  cpufreq: imx6q: Fix imx6sx low frequency support
  cpufreq: speedstep-lib: make several arrays static, makes code smaller
  PM: docs: Delete the obsolete states.txt document
  PM: docs: Describe high-level PM strategies and sleep states
  PM / devfreq: Fix memory leak when fail to register device
  PM / devfreq: Add dependency on PM_OPP
  PM / devfreq: Move private devfreq_update_stats() into devfreq
  PM / devfreq: Convert to using %pOF instead of full_name
  PM / AVS: rockchip-io: add io selectors and supplies for RV1108
  cpufreq: ti: Fix 'of_node_put' being called twice in error handling path
  cpufreq: dt-platdev: Drop few entries from whitelist
  cpufreq: dt-platdev: Automatically create cpufreq device with OPP v2
  ARM: ux500: don't select CPUFREQ_DT
  cpuidle: Convert to using %pOF instead of full_name
  cpufreq: Convert to using %pOF instead of full_name
  PM / Domains: Convert to using %pOF instead of full_name
  cpufreq: Cap the default transition delay value to 10 ms
  ...
2017-09-05 12:19:08 -07:00
Lee Jones
3f979bf8f5 Merge branches 'ib-mfd-arm-i2c-4.14', 'ib-mfd-arm-usb-video-4.14', 'ib-mfd-hwmon-4.14', 'ib-mfd-iio-pwm-4.14', 'ib-mfd-input-rtc-4.14', 'ib-mfd-many-4.14' and 'ib-mfd-pinctrl-regulator-4.14' into ibs-for-mfd-merged 2017-09-05 08:45:36 +01:00
Mark Brown
f039685b2e Merge remote-tracking branches 'regulator/topic/rc5t619' and 'regulator/topic/stm32-vref' into regulator-next 2017-09-04 17:45:50 +01:00
Mark Brown
a6955d3635 Merge remote-tracking branches 'regulator/topic/mt6380', 'regulator/topic/mtk', 'regulator/topic/pv88090', 'regulator/topic/pwm' and 'regulator/topic/qcom' into regulator-next 2017-09-04 17:45:46 +01:00
Mark Brown
02929a4478 Merge remote-tracking branches 'regulator/topic/cpcap', 'regulator/topic/da9063', 'regulator/topic/dt', 'regulator/topic/fan53555' and 'regulator/topic/ltc3589' into regulator-next 2017-09-04 17:45:42 +01:00
Mark Brown
0ab912978c Merge remote-tracking branches 'regulator/fix/axp20x', 'regulator/fix/cpcap' and 'regulator/fix/of' into regulator-linus 2017-09-04 17:45:38 +01:00
Wolfram Sang
a205425658 mfd: twl: Move header file out of I2C realm
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-04 14:41:02 +01:00
Ravikumar Kattekola
27eae9d4b9 regulator: pbias: Select voltage table based on max-voltage
Reference manuals of OMAP5x and DRA7x have been updated to reflect
the PBIAS regulator max-voltage as 3.3V instead of 3.0V, while OMAP3x
and OMAP4x are still quoting 3.0V. So, as of now, the pbias driver
needs to support both 3.0V and 3.3V IO voltage based on the max-voltage
supported by the PBIAS regulator.

Document reference:
SWPU249AF - OMAP543x Technical reference manual - August 2016
SPRUI30C – DRA75x, DRA74x Technical reference manual November 2016

Tested on:
DRA75x PG 2.0 REV H EVM

Signed-off-by: Ravikumar Kattekola <rk@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-31 11:55:40 +01:00
Fabrice Gasnier
0cdbf481e9 regulator: Add support for stm32-vrefbuf
Add regulator driver for STM32 voltage reference buffer which can be
used as voltage reference for ADCs, DACs and external components through
dedicated VREF+ pin.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-30 18:28:35 +01:00
Eric Jeong
8986a11978 regulator: pv88090: Exception handling for out of bounds
This is a patch for exception handlding that the index of array is
out of bounds. And the definitions have been updated to use
proper device name.

Signed-off-by: Eric Jeong <eric.jeong.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-30 16:12:17 +01:00
Dan Carpenter
b661565982 regulator: da9063: Return an error code on probe failure
If "regl_pdata->n_regulators == 0" is true then we accidentally return
PTR_ERR(<some_valid_pointer>) instead of an error code.  I've changed it
to return -ENODEV instead.

Fixes: 69ca3e58d1 ("regulator: da9063: Add Dialog DA9063 voltage regulators support.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-30 16:05:46 +01:00
Pierre-Hugues Husson
83b2a3c2ab regulator: rn5t618: add RC5T619 PMIC support
Extend the driver to support Ricoh RC5T619.
Support the additional regulators and slightly different voltage ranges.

Signed-off-by: Pierre-Hugues Husson <phh@phh.me>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-27 15:28:31 +01:00
Arvind Yadav
6d284bb11c regulator: ltc3589: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-21 18:10:42 +01:00
Guillaume Tucker
fc1111b885 regulator: fan53555: fix I2C device ids
The device tree nodes all correctly describe the regulators as
syr827 or syr828, but the I2C device id is currently set to the
wildcard value of syr82x in the driver.  This causes udev to fail
to match the driver module with the modalias data from sysfs.

Fix this by replacing the I2C device ids with ones that match the
device tree descriptions, with syr827 and syr828.  Tested on
Firefly rk3288 board.  The syr82x id was not used anywhere.

Fixes: e80c47bd73 (regulator: fan53555: Export I2C module alias information)
Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-21 16:57:53 +01:00
Elaine Zhang
c4e0d344c1 regulator: rk808: Add regulator driver for RK805
Add support for the rk805 regulator. The regulator module consists
of 4 DCDCs, 3 LDOs.

The output voltages are configurable and are meant to supply power
to the main processor and other components.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-08-21 08:54:12 +01:00
Chenglin Xu
a551e27368 regulator: mt6380: Add support for MT6380
The MT6380 is a regulator found those boards with MediaTek MT7622 SoC
It is connected as a slave to the SoC using MediaTek PMIC wrapper which
is the common interface connecting with Mediatek made various PMICs.

Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-15 12:50:48 +01:00
Rafael J. Wysocki
690cbb90a7 PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE
To make it clear that the symbol in question refers to
suspend-to-idle, rename it from PM_SUSPEND_FREEZE to
PM_SUSPEND_TO_IDLE.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-11 01:29:55 +02:00
Fabio Estevam
a4aae5afc9 regulator: pwm-regulator: Remove unneeded gpiod NULL check
The gpiod API checks for NULL descriptors, so there is no need to
duplicate the check in the driver.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-24 16:26:35 +01:00
Tirupathi Reddy
c9ccaa0cac regulator: core: fix a possible race in disable_work handling
A race condition between queueing and processing the disable_work
instances results in having a work instance in the queue and the
deferred_disables variable of regulator device structure having a
value '0'. If no new regulator_disable_deferred() call later from
clients, the deferred_disables variable value remains '0' and hits
BUG() in regulator_disable_work() when the queued instance scheduled
for processing the work.

The race occurs as below:

	Core-0					     Core-1
	.....	       /* deferred_disables = 2 */   .....
	.....	       /* disable_work is queued */  .....
	.....					     .....
regulator_disable_deferred: 		regulator_disable_work:
   mutex_lock(&rdev->mutex);			     .....
   rdev->deferred_disables++;		             .....
   mutex_unlock(&rdev->mutex);			     .....
   queue_delayed_work(...)		    mutex_lock(&rdev->mutex);
	.....				    count =rdev->deferred_disables;
	.....				    rdev->deferred_disables = 0;
	.....					     .....
	.....				    mutex_unlock(&rdev->mutex);
	.....					     .....
	.....				    return;
	.....					     .....
	/* No new regulator_disable_deferred() calls from clients */
	/* The newly queued instance is scheduled for processing */
	.....					     .....
regulator_disable_work:
	.....
   mutex_lock(&rdev->mutex);
   BUG_ON(!rdev->deferred_disables); /* deferred_disables = 0 */

The race is fixed by removing the work instance that is queued while
processing the previous queued instance. Cancel the newly queued instance
from disable_work() handler just after reset the deferred_disables variable
to value '0'. Also move the work queueing step before mutex_unlock in
regulator_disable_deferred().

Also use mod_delayed_work() in the pace of queue_delayed_work() as
queue_delayed_work() always uses the delay requested in the first call
when multiple consumers call regulator_disable_deferred() close in time
and does not guarantee the semantics of regulator_disable_deferred().

Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-20 13:22:29 +01:00
Jisheng Zhang
d110e3e921 regulator: fan53555: Use of_device_get_match_data() to simplify probe
if fan53555_regulator_probe() is called and the "client->dev.of_node"
isn't NULL, it means OF registered a device with a valid compatible
string, so match cannot be NULL.

Use of_device_get_match_data() to retrieve the drvdata pointer.  No
functional change intended.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-20 12:19:19 +01:00
Frank Rowand
423a11647c regulator: of: regulator_of_get_init_data() missing of_node_get()
Boot fails for qcom-apq8074-dragonboard on 4.13-rc1 with error:
OF: ERROR: Bad of_node_put() on /soc/spmi@fc4cf000/pm8941@1/regulators

The error will occur if the configuration is set to:
   CONFIG_OF_OVERLAY y
   CONFIG_OF_UNITTEST y
   CONFIG_OF_DYNAMIC y
   CONFIG_OF_RESOLVE y

If CONFIG_OF_DYNAMIC is enabled then of_node_release() detects an
attempt to release a node that is still attached to the device tree.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-19 12:25:35 +01:00
Rob Herring
7799167b7a regulator: Convert to using %pOF instead of full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-19 11:56:01 +01:00
Sebastian Reichel
74ff8e0651 regulator: cpcap: Add OF mode mapping
Add device tree mode mapping capabilities to the cpcap driver.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-17 12:12:58 +01:00
Sebastian Reichel
91a024e803 regulator: cpcap: Fix standby mode
The original patch from Tony uses standby mode bit inverted, which is
not correct. This fixes all instances in the driver code for get & set
mode. This did not yet make problems, since mode has not been changed
by any mainline driver so far.

Fixes: 0ad4c07edd ("regulator: cpcap: Add basic regulator support")
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2017-07-17 12:12:58 +01:00
Sebastian Reichel
4ebb9d7f90 regulator: cpcap: Fix standby mode
The original patch from Tony uses standby mode bit inverted, which is
not correct. This fixes all instances in the driver code for get & set
mode. This did not yet make problems, since mode has not been changed
by any mainline driver so far.

Fixes: 0ad4c07edd ("regulator: cpcap: Add basic regulator support")
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2017-07-10 17:41:37 +01:00
Gustavo A. R. Silva
da26296848 regulator: axp20x: add NULL check on devm_kzalloc() return value
Check return value from call to devm_kzalloc()
in order to prevent a NULL pointer dereference.

This issue was detected using Coccinelle and the following semantic patch:

@@
expression x;
identifier fld;
@@

* x = devm_kzalloc(...);
  ... when != x == NULL
  x->fld

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-07 13:48:33 +01:00
Gustavo A. R. Silva
e3b53b8a46 regulator: qcom_smd: add NULL check on of_match_device() return value
Check return value from call to of_match_device()
in order to prevent a NULL pointer dereference.

In case of NULL print error message and return.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-07 13:42:07 +01:00
Gustavo A. R. Silva
2f2472baa6 regulator: qcom_rpm-regulator: add NULL check on of_match_device() return value
Check return value from call to of_match_device()
in order to prevent a NULL pointer dereference.

In case of NULL print error message and return.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-07-07 13:42:03 +01:00
Mark Brown
8d67f64f77 Merge remote-tracking branches 'regulator/topic/settle', 'regulator/topic/tps65910' and 'regulator/topic/tps65917' into regulator-next 2017-07-03 16:52:21 +01:00