Commit Graph

265 Commits

Author SHA1 Message Date
Wenkai Du 99fb0f25c4 Revert "mfd: cros_ec: Add ACPI GPE handler for LID0 devices"
This reverts commit e04653a9dc.

It is no longer needed to install Chrome EC GPE handler to have
GPE enabled in suspend to idle path. It is found that with this
handler installed, EC wake up doesn't work because default EC
event handler that can wake up system is not getting called.

Signed-off-by: Wenkai Du <wenkai.du@intel.com>
Acked-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16 09:21:48 +01:00
Lee Jones 8848ff4206 Immutable branch for both MFD and EXTCON tree.
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Merge branches 'ib-mfd-leds-4.16', 'ib-mfd-memstick-misc-mmc-4.16', 'ib-mfd-platform-4.16' and 'ib-mfd-tty-watchdog-4.16', tag 'ib-extcon-mfd-4.16-1' into ibs-for-mfd-merged

Immutable branch for both MFD and EXTCON tree.
2018-01-08 11:02:37 +00:00
Andrey Smirnov 538ee27290 mfd: Add driver for RAVE Supervisory Processor
Add a driver for RAVE Supervisory Processor, an MCU implementing
various bits of housekeeping functionality (watchdoging, backlight
control, LED control, etc) on RAVE family of products by Zodiac
Inflight Innovations.

This driver implementes core MFD/serdev device as well as
communication subroutines necessary for commanding the device.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: Philippe Ombredanne <pombredanne@nexb.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-01-08 10:08:35 +00:00
Thierry Escande 5e0115581b cros_ec: Move cros_ec_dev module to drivers/mfd
The cros_ec_dev module is responsible for registering the MFD devices
attached to the ChromeOS EC. This patch moves this module to drivers/mfd
so calls to mfd_add_devices() are not done from outside the MFD subtree
anymore.

Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-12-15 10:46:06 +00:00
Rui Feng e455b69ddf misc: rtsx: Move Realtek Card Reader Driver to misc
Because Realtek card reader drivers are pcie and usb drivers,
and they bridge mmc subsystem and memstick subsystem, they are
not mfd drivers. Greg and Lee Jones had a discussion about
where to put the drivers, the result is that misc is a good
place for them, so I move all files to misc. If I don't move
them to a right place, I can't add any patch for this driver.

Signed-off-by: Rui Feng <rui_feng@realsil.com.cn>
Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Perry Yuan <perry_yuan@dell.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-11-29 10:16:44 +00:00
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
Mark Brown 242f66c845
Merge remote-tracking branches 'asoc/topic/ac97', 'asoc/topic/ac97-mfd', 'asoc/topic/amd' and 'asoc/topic/arizona-mfd' into asoc-next 2017-11-10 21:31:02 +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
Baolin Wang 25ca4ae434 mfd: Add Spreadtrum SC27xx series PMICs driver
This patch adds support for Spreadtrum SC27xx series PMIC MFD core, and It
provides communication through the SPI interfaces. The SC27xx series PMICs
contains the following 6 major components:
- DCDCs
- LDOs
- Battery management system
- Audio codec
- User interface function, such as indicator, flash LED
- IC level function, such as power on/off, type-c

Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-11-01 09:32:54 +00:00
Takashi Iwai 6bac0606fd mfd: Add support for Cherry Trail Dollar Cove TI PMIC
This patch adds the MFD driver for Dollar Cove (TI version) PMIC with
ACPI INT33F5 that is found on some Intel Cherry Trail devices.
The driver is based on the original work by Intel, found at:
  https://github.com/01org/ProductionKernelQuilts

This is a minimal version for adding the basic resources.  Currently,
only ACPI PMIC opregion and the external power-button are used.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=193891

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-10-13 10:42:58 +01:00
Robert Jarzmik a5c6951c49 mfd: wm97xx-core: core support for wm97xx Codec
The WM9705, WM9712 and WM9713 are highly integrated codecs, with an
audio codec, DAC and ADC, GPIO unit and a touchscreen interface.

Historically the support was spread across drivers/input/touchscreen and
sound/soc/codecs. The sharing was done through ac97 bus sharing. This
model will not withstand the new AC97 bus model, where codecs are
discovered on runtime.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-19 17:07:24 +01:00
Rajmohan Mani 9bbf6a15ce mfd: Add support for TPS68470 device
The TPS68470 device is an advanced power management
unit that powers a Compact Camera Module (CCM),
generates clocks for image sensors, drives a dual
LED for Flash and incorporates two LED drivers for
general purpose indicators.

This patch adds support for TPS68470 mfd device.

Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05 08:46:01 +01:00
Marek Vasut d3ea212720 mfd: Add ROHM BD9571MWV-M MFD PMIC driver
Add the MFD part of the ROHM BD9571MWV-M PMIC driver and MAINTAINERS
entry. The MFD part only specifies the regmap bits for the PMIC and
binds the subdevs together.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05 08:46:00 +01:00
Fabrice Gasnier e8924005b4 mfd: Add STM32 LPTimer driver
STM32 Low-Power Timer hardware block can be used for:
- PWM generation
- IIO trigger (in sync with PWM)
- IIO quadrature encoder counter
PWM and IIO timer configuration are mixed in the same registers so
we need a multi fonction driver to be able to share those registers.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-04 14:49:04 +01:00
Keerthy 1e3496000c mfd: Add LP87565 PMIC support
The LP87565 chip is a power management IC for Portable Navigation Systems
and Tablet Computing devices. It contains the following components:

        - Configurable Bucks(Single and multi-phase).
        - Configurable General Purpose Output Signals (GPO).

The LP87565-Q1 variant device uses two 2-phase outputs configuration,
Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3
output.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:13 +01:00
Hans de Goede de85d79f4a mfd: Add Cherry Trail Whiskey Cove PMIC driver
Add mfd driver for Intel CHT Whiskey Cove PMIC, based on various non
upstreamed CHT Whiskey Cove PMIC patches.

This is a somewhat minimal version which adds irqchip support and cells
for: ACPI PMIC opregion support, the i2c-controller driving the external
charger irc and the pwrsrc/extcon block.

Further cells can be added in the future if/when drivers are upstreamed
for them.

[The above patch caused a build error on some archetectures]

From: Arnd Bergmann <arnd@arndb.de>

I ran into a build error on ARM with a platform that has a non-standard
clk implementation:

drivers/clk/clk.o: In function `clk_disable':
clk.c:(.text.clk_disable+0x0): multiple definition of `clk_disable'
arch/arm/mach-omap1/clock.o:clock.c:(.text.clk_disable+0x0): first defined here
drivers/clk/clk.o: In function `clk_enable':
clk.c:(.text.clk_enable+0x0): multiple definition of `clk_enable'
arch/arm/mach-omap1/clock.o:clock.c:(.text.clk_enable+0x0): first defined here

The problem is a device driver that uses 'select COMMON_CLK', which is
generally a bad idea: selecting a subsystem should only be done from
a platform, otherwise we run into circular dependencies. The same driver
also selects 'GPIOLIB' and 'I2C', which has a similar effect.

This turns all three into 'depends on', as it should be.

Finally, we can limit the build to x86, unless we are compile testing.

First patch:
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Fix for first patch (squashed):
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:13 +01:00
Andy Shevchenko b5238b4185 mfd: intel_soc_pmic: Fix a mess with compilation units
Crystal Cove and Whiskey Cove are two different PMICs which are
installed on Intel Atom SoC based platforms.

Moreover there are two independent drivers that by some reason were
supposed (*) to get into one kernel module.

Fix the mess by clarifying Kconfig option for Crystal Cove and split
Whiskey Cove out of it.

(*) It looks like the configuration was never tested with
    INTEL_SOC_PMIC=n. The line in Makefile is actually wrong.

Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> (supporter:ACPI)
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27 11:54:42 +01:00
Boris Brezillon fe9d7cb22e mfd: syscon: atmel-smc: Add new helpers to ease SMC regs manipulation
These new helpers + macro definitions are meant to replace the old ones
which are unpractical to use.

Note that the macros and function prefixes have been intentionally
changed to ATMEL_[H]SMC_XX and atmel_[h]smc_ to reflect the fact that
this IP is also embedded in avr32 SoCs (and not only in at91 ones).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27 09:25:05 +01:00
Milo Kim d5aa11bfe9 mfd: Add TI LMU driver
TI LMU (Lighting Management Unit) driver supports lighting devices below.

  LM3532, LM3631, LM3632, LM3633, LM3695 and LM3697.

LMU devices have common features.
  - I2C interface for accessing device registers
  - Hardware enable pin control
  - Backlight brightness control
  - Notifier for hardware fault monitoring
  - Regulators for LCD display bias

It contains fault monitor, backlight, LED and regulator driver.

LMU fault monitor
-----------------
  LM3633 and LM3697 provide hardware monitoring feature.
  It enables open or short circuit detection.
  After monitoring is done, each device should be re-initialized.
  Notifier is used for this case.
  Separate patch for 'ti-lmu-fault-monitor' will be sent later.

Backlight
---------
  It's handled by TI LMU backlight consolidated driver and
  chip dependent data. Separate patchset will be sent later.

LED indicator
-------------
  LM3633 has 6 indicator LEDs. Programmable dimming pattern is also
  supported. Separate patch for 'leds-lm3633' will be sent later.

Regulator
---------
  LM3631 has 5 regulators for the display bias.
  LM3632 supports 3 regulators. One consolidated driver enables it.
  The lm363x regulator driver is already upstreamed.

Signed-off-by: Milo Kim <milo.kim@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27 09:25:04 +01:00
Archana Patni e04653a9dc mfd: cros_ec: Add ACPI GPE handler for LID0 devices
This patch installs an ACPI GPE handler for LID0 ACPI device to indicate
ACPI core that this GPE should stay enabled for lid to work in suspend
to idle path.

Signed-off-by: Archana Patni <archana.patni@intel.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27 09:25:03 +01:00
Ksenija Stanojevic ead25133e9 mfd: mxs-lradc: Add support for mxs-lradc
Add core files for low resolution analog-to-digital converter (mxs-lradc)
MFD driver.

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-03-23 12:28:28 +00:00
Tony Lindgren 56e1d40d3b mfd: cpcap: Add minimal support
Many Motorola phones like droid 4 are using a custom PMIC called CPCAP
or 6556002. We can support it's core features quite easily with regmap_spi
and regmap_irq.

The children of cpcap, such as regulators, ADC and USB, can be just regular
device drivers and defined in the dts file. They get probed as we call
of_platform_populate() at the end of our probe, and then the children
can just call dev_get_regmap(dev.parent, NULL) to get the regmap.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Scott <michael.scott@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-02-13 09:29:44 +00:00
Benjamin Gaignard d0f949e220 mfd: Add STM32 Timers driver
This hardware block could at used at same time for PWM generation
and IIO timers.
PWM and IIO timer configuration are mixed in the same registers
so we need a multi fonction driver to be able to share those registers.

version 7:
- rebase on v4.10-rc2

version 6:
- rename files to stm32-timers
- rename functions to stm32_timers_xxx

version 5:
- fix Lee comments about detect function
- add missing dependency on REGMAP_MMIO

version 4:
- add a function to detect Auto Reload Register (ARR) size
- rename the structure shared with other drivers

version 2:
- rename driver "stm32-gptimer" to be align with SoC documentation
- only keep one compatible
- use of_platform_populate() instead of devm_mfd_add_devices()

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-01-23 12:03:57 +00:00
Quentin Schulz 937d3a0af5 mfd: Add support for Allwinner SoCs ADC
The Allwinner SoCs all have an ADC that can also act as a touchscreen
controller and a thermal sensor. For now, only the ADC and the thermal
sensor drivers are probed by the MFD, the touchscreen controller support
will be added later.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-11-29 08:21:19 +00:00
Linus Walleij 40a3a0f2ba mfd: qcom-pm8xxx: Clean up PM8XXX namespace
The Kconfig and file naming for the PM8xxx driver is totally
confusing:

- Kconfig options MFD_PM8XXX and MFD_PM8921_CORE, some in-kernel
  users depending on or selecting either at random.
- A driver file named pm8921-core.c even if it is indeed
  used by the whole PM8xxx family of chips.
- An irqchip named pm8xxx since it was (I guess) realized that
  the driver was generic for all pm8xxx PMICs.

As I may want to add support for PM8901 this is starting to get
really messy. Fix this situation by:

- Remove the MFD_PM8921_CORE symbol and rely solely on MFD_PM8XXX
  and convert all users, including LEDs Kconfig and ARM defconfigs
  for qcom and multi_v7 to use that single symbol.
- Renaming the driver to qcom-pm8xxx.c to fit along the two
  other qcom* prefixed drivers.
- Rename functions withing the driver from 8921 to 8xxx to
  indicate it is generic.
- Just drop the =m config from the pxa_defconfig, I have no clue
  why it is even there, it is not a Qualcomm platform. (Possibly
  older Kconfig noise from saveconfig.)

Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-11-21 12:54:28 +00:00
Linus Torvalds d042380886 - Core Frameworks
- Add the MFD bindings doc to MAINTAINERS
 
 - New Drivers
    - X-Powers AC100 Audio CODEC and RTC
    - TI LP873x PMIC
    - Rockchip RK808 PMIC
    - Samsung Exynos Low Power Audio
 
  - New Device Support
    - Add support for STMPE1600 variant to stmpe
    - Add support for PM8018 PMIC to pm8921-core
    - Add support for AXP806 PMIC in axp20x
    - Add support for AXP209 GPIO in axp20x
 
  - New Functionality
    - Add support for Reset to all STMPE variants
    - Add support for MKBP event support to cros_ec
    - Add support for USB to intel_soc_pmic_bxtwc
    - Add support for IRQs and Power Button to tps65217
 
  - Fix-ups
    - Clean-up defunct author emails; da9063, max14577
    - Kconfig fixups; wm8350-i2c, as3722
    - Constify; altera-a10sr, sm501
    - Supply PCI IDs; intel-lpss-pci
    - Improve clocking; qcom_rpm
    - Fix IRQ probing; ucb1x00-core
    - Ensure fault log is cleared; da9052
    - Remove NO_IRQ check; ucb1x00-core
    - Supply I2C properties; intel-lpss-acpi, intel-lpss-pci
    - Non standard declaration; tps65217, max8997-irq
    - Remove unused code; lp873x, db8500-prcmu, ab8500-debugfs,
                          cros_ec_spi
    - Make non-modular; altera-a10sr, intel_msic, smsc-ece1099,
                        sun6i-prcm, twl-core,
    - OF bindings; ac100, stmpe, qcom-pm8xxx, qcom-rpm, rk808,
                   axp20x, lp873x, exynos5433-lpass, act8945a,
                   aspeed-scu, twl6040, arizona
 
  - Bug Fixes
    - Release OF pointer; qcom_rpm
    - Avoid double shifting in suspend/resume; 88pm80x
    - Fix 'defined but not used' error; exynos-lpass
    - Fix 'sleeping whilst attomic'; atmel-hlcdc
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Merge tag 'mfd-for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core framework:
   - Add the MFD bindings doc to MAINTAINERS

  New drivers:
   - X-Powers AC100 Audio CODEC and RTC
   - TI LP873x PMIC
   - Rockchip RK808 PMIC
   - Samsung Exynos Low Power Audio

  New device support:
   - Add support for STMPE1600 variant to stmpe
   - Add support for PM8018 PMIC to pm8921-core
   - Add support for AXP806 PMIC in axp20x
   - Add support for AXP209 GPIO in axp20x

  New functionality:
   - Add support for Reset to all STMPE variants
   - Add support for MKBP event support to cros_ec
   - Add support for USB to intel_soc_pmic_bxtwc
   - Add support for IRQs and Power Button to tps65217

  Fix-ups:
   - Clean-up defunct author emails (da9063, max14577)
   - Kconfig fixups (wm8350-i2c, as37220
   - Constify (altera-a10sr, sm501)
   - Supply PCI IDs (intel-lpss-pci)
   - Improve clocking (qcom_rpm)
   - Fix IRQ probing (ucb1x00-core)
   - Ensure fault log is cleared (da9052)
   - Remove NO_IRQ check (ucb1x00-core)
   - Supply I2C properties (intel-lpss-acpi, intel-lpss-pci)
   - Non standard declaration (tps65217, max8997-irq)
   - Remove unused code (lp873x, db8500-prcmu, ab8500-debugfs,
     cros_ec_spi)
   - Make non-modular (altera-a10sr, intel_msic, smsc-ece1099,
     sun6i-prcm, twl-core)
   - OF bindings (ac100, stmpe, qcom-pm8xxx, qcom-rpm, rk808, axp20x,
     lp873x, exynos5433-lpass, act8945a, aspeed-scu, twl6040, arizona)

  Bugfixes:
   - Release OF pointer (qcom_rpm)
   - Avoid double shifting in suspend/resume (88pm80x)
   - Fix 'defined but not used' error (exynos-lpass)
   - Fix 'sleeping whilst attomic' (atmel-hlcdc)"

* tag 'mfd-for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (69 commits)
  mfd: arizona: Handle probe deferral for reset GPIO
  mfd: arizona: Remove arizona_of_get_named_gpio helper function
  mfd: arizona: Add DT options for max_channels_clocked and PDM speaker config
  mfd: twl6040: Register child device for twl6040-pdmclk
  mfd: cros_ec_spi: Remove unused variable 'request'
  mfd: omap-usb-host: Return value is not 'const int'
  mfd: ab8500-debugfs: Remove 'weak' function suspend_test_wake_cause_interrupt_is_mine()
  mfd: ab8500-debugfs: Remove ab8500_dump_all_banks_to_mem()
  mfd: db8500-prcmu: Remove unused *prcmu_set_ddr_opp() calls
  mfd: ab8500-debugfs: Prevent initialised field from being over-written
  mfd: max8997-irq: 'inline' should be at the beginning of the declaration
  mfd: rk808: Fix RK818_IRQ_DISCHG_ILIM initializer
  mfd: tps65217: Fix nonstandard declaration
  mfd: lp873x: Remove unused mutex lock from struct lp873x
  mfd: atmel-hlcdc: Do not sleep in atomic context
  mfd: exynos-lpass: Mark PM functions as __maybe_unused
  mfd: intel-lpss: Add default I2C device properties for Apollo Lake
  mfd: twl-core: Make it explicitly non-modular
  mfd: sun6i-prcm: Make it explicitly non-modular
  mfd: smsc-ece1099: Make it explicitly non-modular
  ...
2016-10-07 08:35:35 -07:00
Sylwester Nawrocki c695abab24 mfd: Add Samsung Exynos Low Power Audio Subsystem driver
This patch adds common driver for the Top block of the Samsung Exynos
SoC Low Power Audio Subsystem.  This is a minimal driver which prepares
resources for IP blocks like I2S, audio DMA and UART and exposes
a regmap for the Top block registers.  Also system power ops are added
to ensure the Audio Subsystem is operational after system suspend/resume
cycle.

Signed-off-by: Inha Song <ideal.song@samsung.com>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-10-04 15:48:02 +01:00
Lee Jones b304746c2a Merge branches 'ib-mfd-gpio-4.9', 'ib-mfd-gpio-regulator-4.9', 'ib-mfd-input-4.9', 'ib-mfd-regulator-4.9', 'ib-mfd-regulator-4.9.1', 'ib-mfd-regulator-rtc-4.9', 'ib-mfd-regulator-rtc-4.9-1' and 'ib-mfd-rtc-4.9' into ibs-for-mfd-merged 2016-10-04 15:47:01 +01:00
Linus Walleij ac2a8bca03 Merge branch 'ib-move-htc-egpio' into devel 2016-09-28 09:30:21 -07:00
Linus Walleij 3c6e8d05d6 mfd/gpio: Move HTC GPIO driver to GPIO subsystem
The HTC GPIO driver is a pure GPIO driver and I just can not
see what it is doing inside MFD. Let's just move it to GPIO
and take this opportunity to move the platform data to
<linux/platform_data/gpio-htc-egpio.h>

Cc: arm@kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-28 09:28:34 -07:00
Keerthy dc21c7ad3a mfd: lp873x: Add lp873x PMIC support
The LP873X chip is a power management IC for Portable Navigation Systems
    and Tablet Computing devices. It contains the following components:

     - Regulators.
     - Configurable General Purpose Output Signals (GPO).

PMIC interacts with the main processor through i2c. PMIC has
couple of LDOs (Linear Regulators), couple of BUCKs (Step-Down DC-DC
Converter Cores) and GPOs (General Purpose Output Signals).

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-08-31 13:20:31 +01:00
Chen-Yu Tsai 585083c539 mfd: ac100: Add driver for X-Powers AC100 audio codec / RTC combo IC
The AC100 is a multifunction device with an audio codec subsystem and
an RTC subsystem. These two subsystems share a common register space
and host interface.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-08-08 12:53:26 +01:00
Thor Thayer 9787f5e28b mfd: altr_a10sr: Add Altera Arria10 DevKit System Resource Chip
Add support for the Altera Arria10 Development Kit System Resource
chip which is implemented using a MAX5 as a external gpio extender
with the regmap framework over a SPI bus.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-29 10:14:37 +01:00
Chen Feng b52207ef4e mfd: hi655x: Add MFD driver for hi655x
Add PMIC MFD driver to support hisilicon hi665x.

Signed-off-by: Chen Feng <puck.chen@hisilicon.com>
Signed-off-by: Fei Wang <w.f@huawei.com>
Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-05-18 08:25:26 +01:00
Laxman Dewangan 327156c593 mfd: max77620: Add core driver for MAX77620/MAX20024
MAX77620/MAX20024 are Power Management IC from the MAXIM.
It supports RTC, multiple GPIOs, multiple DCDC and LDOs,
watchdog, clock etc.

Add MFD drier to provides common support for accessing the
device; additional drivers is developed on respected subsystem
in order to use the functionality of the device.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mallikarjun Kasoju <mkasoju@nvidia.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-05-09 15:42:00 +01:00
Wenyou Yang b25c6b7d28 mfd: act8945a: Add Active-semi ACT8945A PMIC MFD driver
This patch adds support for the Active-semi ACT8945A PMIC.
It is a Multi Function Device with the following subdevices:
 - Regulator
 - Charger

It is interfaced to the host controller using I2C interface,
ACT8945A is a child device of the I2C.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-03-16 08:50:25 +00:00
Andrew F. Davis b45b719ee0 mfd: tps65086: Add driver for the TPS65086 PMIC
Add support for the TPS65912 device. It provides communication
through I2C and contains the following components:

 - Regulators
 - Load switches
 - GPO controller

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-03-16 08:50:15 +00:00
Lee Jones bab070620e Merge branches 'ib-mfd-clk-4.6', 'ib-mfd-input-iio-4.6', 'ib-mfd-regulator-4.6' and 'ib-mfd-regulator-gpio-4.6' into ibs-for-mfd-merged 2016-03-09 12:56:47 +07:00
Chen-Yu Tsai 02071f0f79 mfd: axp20x: Add support for RSB based AXP223 PMIC
The AXP223 is a new PMIC commonly paired with Allwinner A23/A33 SoCs.
It is functionally identical to AXP221; only the regulator default
voltage/status and the external host interface are different.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-12 08:54:42 +00:00
Chen-Yu Tsai 4fd4115142 mfd: axp20x: Split the driver into core and i2c bits
The axp20x driver assumes the device is i2c based. This is not the
case with later chips, which use a proprietary 2 wire serial bus
by Allwinner called "Reduced Serial Bus".

This patch follows the example of mfd/wm831x and splits it into
an interface independent core, and an i2c specific glue layer.
MFD_AXP20X and the new MFD_AXP20X_I2C are changed to tristate
symbols, allowing the driver to be built as modules.

Whitespace and other style errors in the moved i2c specific code
have been fixed. Included but unused header files are removed as
well.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-12 08:53:03 +00:00
Andrew F. Davis 796f5692da mfd: tps65912: Add driver for the TPS65912 PMIC
This patch adds support for TPS65912 PMIC MFD core. It provides
communication through the I2C and SPI interfaces. It contains
the following components:

 - Regulators
 - GPIO controller

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11 16:30:59 +00:00
Andrew F. Davis 65b6555971 mfd: tps65912: Remove old driver in preparation for new driver
The old tps65912 driver is being replaced, delete old driver.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11 16:30:31 +00:00
Markus Pargmann e2fccf5c15 mfd: fsl-imx25-tsadc: Register touchscreen ADC driver
This is the core driver for imx25 touchscreen/adc driver. The module
has one shared ADC and two different conversion queues which use the
ADC. The two queues are identical. Both can be used for general purpose
ADC but one is meant to be used for touchscreens.

This driver is the core which manages the central components and
registers of the TSC/ADC unit. It manages the IRQs and forwards them to
the correct components.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Denis Carikli <denis@eukrea.com>
[ensure correct ADC clock depending on the IPG clock]
Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11 15:40:41 +00:00
Richard Fitzgerald ea1f333990 mfd: arizona: Support Cirrus Logic CS47L24 and WM1831
This patch adds the regmap configuration tables and
core MFD handling for the CS47L24 and WM1831 codecs.

Note that compared to the other Arizona codecs, these devices
do not have an LDO1 or micsupp regulators, extcon driver, or
the DCVDD isolation control.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-12-04 08:46:39 +00:00
Charles Keepax cc509d5ba2 mfd: wm8994: Ensure that the whole MFD is built into a single module
The MFD part of wm8994 consists of three files wm8994-core.c,
wm8994-irq.c and wm8994-regmap.c only wm8994-core.c has a
MODULE_DESCRIPTION / LICENSE. These were clearly intended to be built
as a single module, but currently are not. This will lead to a tainted
kernel when loading modules for wm8894-irq.c and wm8994-regmap.c because
are missing a license.

This patch fixes this issue by grouping the three files together into a
single module.

Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-11-24 11:11:18 +00:00
Cyrille Pitchen 5c41f11c62 mfd: atmel-flexcom: Add a driver for Atmel Flexible Serial Communication Unit
This driver supports the new Atmel Flexcom. The Flexcom is a wrapper which
integrates one SPI controller, one I2C controller and one USART. Only one
function can be enabled at a time. This driver selects the function once
for all, when the Flexcom is probed, according to the value of the new
"atmel,flexcom-mode" device tree property.

This driver has chosen to present the Flexcom to the system as a MFD so
the implementation is seamless for the existing Atmel SPI, I2C and USART
drivers.

Also the Flexcom embeds FIFOs: the latest patches of the SPI, I2C and
USART drivers take advantage of this new feature.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-10-30 17:19:49 +00:00
Qipeng Zha 39d047c0b1 mfd: add Intel Broxton Whiskey Cove PMIC driver
Add MFD core driver for Intel Broxton Whiskey Cove PMIC,
which is specially accessed by hardware IPC, not a generic
I2C device

Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-10-30 17:18:50 +00:00
S Twiss 9b40b030c4 mfd: da9062: Supply core driver
Add MFD core driver support for DA9062

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-08-11 15:08:45 +01:00
Richard Fitzgerald 6887b042c5 mfd: arizona: Add support for WM8998 and WM1814
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-08-11 15:08:42 +01:00
Andy Shevchenko 4b45efe852 mfd: Add support for Intel Sunrisepoint LPSS devices
The new coming Intel platforms such as Skylake will contain Sunrisepoint PCH.
The main difference to the previous platforms is that the LPSS devices are
compound devices where usually main (SPI, HSUART, or I2C) and DMA IPs are
present.

This patch brings the driver for such devices found on Sunrisepoint PCH.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-07-28 09:56:47 +01:00