Commit Graph

240 Commits

Author SHA1 Message Date
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
Richard Fitzgerald
e2ae0fbc73 mfd: arizona: Fix incorrect Makefile conditionals
The use of ifneq against 'n' to conditionally compile codec-specific
parts is wrong and was resulting in all the codec tables being built
even for deselected codecs.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-06-22 12:25:19 +01:00
Gyungoh Yoo
2698dc2229 mfd: Add support for Skyworks SKY81452 driver
Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-12 09:08:12 +00:00
Raymond Tan
60ae5b9f5c mfd: intel_quark_i2c_gpio: Add Intel Quark X1000 I2C-GPIO MFD Driver
In Quark X1000, there's a single PCI device that provides both
an I2C controller and a GPIO controller. This MFD driver will
split the 2 devices for their respective drivers.

This patch is based on Josef Ahmad's initial work for Quark enabling.

Acked-by: Michael Turquette <mturquette@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Weike Chen <alvin.chen@intel.com>
Signed-off-by: Raymond Tan <raymond.tan@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-12 09:07:17 +00:00
Jaewon Kim
c7f585fe46 mfd: max77843: Add max77843 MFD driver core driver
This patch adds MAX77843 core/irq driver to support PMIC,
MUIC(Micro USB Interface Controller), Charger, Fuel Gauge,
LED and Haptic device.

Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-04 08:18:28 +00:00
Flora Fu
6df8dd5c18 mfd: Add support for the MediaTek MT6397 PMIC
This adds support for the MediaTek MT6397 PMIC. This is a
multifunction device with the following sub modules:

- Regulator
- RTC
- Audio codec
- GPIO
- Clock

It is interfaced to the host controller using SPI interface by a proprietary
hardware called PMIC wrapper or pwrap. MT6397 MFD is a child device of the
pwrap.

Signed-off-by: Flora Fu, MediaTek
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-04 08:18:27 +00:00
Micky Ching
19f3bd548f mfd: rtsx: Remove LCTLR defination
To enable/disable ASPM we should find LINK CONTROL register
in PCI config space. All old chip use 0x80 address, but new
chip may use another address, so we using pci_find_capability()
to get LINK CONTROL address.

rtsx_gops.c was removed, we consider to put some common operations
to this file, but the actual thing is, only a group of chips
are in common ops1, and another group of chips in common ops2,
it is hard to decide put which ops into generic ops file.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:19 +00:00
Bjorn Andersson
58e214382b mfd: qcom-rpm: Driver for the Qualcomm RPM
Driver for the Resource Power Manager (RPM) found in Qualcomm 8660, 8960
and 8064 based devices. The driver exposes resources that child drivers
can operate on; to implementing regulator, clock and bus frequency
drivers.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22 16:04:00 +00:00
Adam Thomson
b8fce55c09 mfd: Add support for DA9150 combined charger & fuel-gauge device
DA9150 is a combined Charger and Fuel-Gauge IC, with additional
GPIO and GPADC functionality.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22 15:55:54 +00:00
Beomho Seo
0b27125854 mfd: rt5033: Add Richtek RT5033 driver core.
This patch adds a new driver for Richtek RT5033 driver.
RT5033 is a Multifunction device which includes battery charger, fuel gauge,
flash LED current source, LDO and synchronous Buck converter. It is interfaced
to host controller using I2C interface.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22 15:55:47 +00:00
Micky Ching
5cb5d9616a mfd: rtsx: Fix PM suspend for 5227 & 5249
Fix rts5227&5249 failed send buffer cmd after suspend,
PM_CTRL3 should reset before send any buffer cmd after suspend.
Otherwise, buffer cmd will failed, this will lead resume fail.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-25 16:18:48 +00:00
Boris Brezillon
2c86e9fb72 mfd: Add atmel-hlcdc driver
The HLCDC IP available on some Atmel SoCs (i.e. at91sam9n12, at91sam9x5
family or sama5d3 family) exposes 2 subdevices:
- a display controller (controlled by a DRM driver)
- a PWM chip

The MFD device provides a regmap and several clocks (those connected
to this hardware block) to its subdevices.

This way concurrent accesses to the iomem range are handled by the regmap
framework, and each subdevice can safely access HLCDC registers.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Anthony Harivel <anthony.harivel@emtrion.de>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-25 16:18:43 +00:00
Octavian Purdila
338a128142 mfd: Add support for Diolan DLN-2 devices
This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO
Master Adapter DLN-2. Details about the device can be found here:

https://www.diolan.com/i2c/i2c_interface.html.

Information about the USB protocol can be found in the Programmer's
Reference Manual [1], see section 1.7.

Because the hardware has a single transmit endpoint and a single
receive endpoint the communication between the various DLN2 drivers
and the hardware will be muxed/demuxed by this driver.

Each DLN2 module will be identified by the handle field within the DLN2
message header. If a DLN2 module issues multiple commands in parallel
they will be identified by the echo counter field in the message header.

The DLN2 modules can use the dln2_transfer() function to issue a
command and wait for its response. They can also register a callback
that is going to be called when a specific event id is generated by
the device (e.g. GPIO interrupts). The device uses handle 0 for
sending events.

[1] https://www.diolan.com/downloads/dln-api-manual.pdf

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-10 16:30:05 +00:00
Josh Cartwright
c3a973a770 mfd: Add support for Qualcomm SPMI PMICs
The Qualcomm SPMI PMIC chips are components used with the
Snapdragon 800 series SoC family.  This driver exists
largely as a glue mfd component, it exists to be an owner
of an SPMI regmap for children devices described in
device tree.

Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-26 08:24:00 +01:00
Guodong Xu
8bdf87b400 mfd: Add HI6421 PMIC Core driver
This adds driver to support HiSilicon Hi6421 PMIC. Hi6421 includes multi-
functions, such as regulators, codec, ADCs, Coulomb counter, etc.
This driver includes core APIs _only_.

Drivers for individul components, like voltage regulators, are
implemented in corresponding driver directories and files.

Registers in Hi6421 are memory mapped, so using regmap-mmio API.

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-26 08:23:43 +01:00
Chris Zhong
f69a7cf74d mfd: RK808: Add new mfd driver for RK808
The RK808 chip is a power management IC for multimedia and handheld
devices. It contains the following components:

- Regulators
- RTC
- Clkout

The RK808 core driver is registered as a platform driver and provides
communication through I2C with the host device for the different
components.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Zhang Qing <zhangqing@rock-chips.com>
Tested-by: Heiko <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-26 08:15:56 +01:00
Beniamino Galvani
9bb9e29c78 mfd: Add Ricoh RN5T618 PMIC core driver
Ricoh RN5T618 is a power management IC which integrates 3 step-down
DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
fuel gauge, ADC, GPIOs and a watchdog timer.

This commit adds a MFD core driver to support the I2C communication
with the device.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-26 08:15:51 +01:00
Andreas Werner
dfbdcd7cef mfd: menf21bmc: Introduce MEN 14F021P00 BMC MFD Core driver
The MEN 14F021P00 Board Management Controller provides an
I2C interface to the host to access the feature implemented in the BMC.
The BMC is a PIC Microntroller assembled on CPCI Card from MEN Mikroelektronik
and on a few Box/Display Computer.

Added MFD Core driver, supporting the I2C communication to the device.

The MFD driver currently supports the following features:
 	- Watchdog
 	- LEDs
	- Hwmon (voltage monitoring)

Signed-off-by: Andreas Werner <andreas.werner@men.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-24 13:30:16 +01:00
Javier Martinez Canillas
6f1c1e71d9 mfd: max77686: Convert to use regmap_irq
By using the generic IRQ support in the Register map API, it
is possible to get rid max77686-irq.c and simplify the code.

Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-07-21 16:54:26 +01:00
Lee Jones
6ec9dc323b Merge branches 'ib-mfd-extcon-regulator-3.17', 'ib-mfd-gpio-3.17' and 'ib-mfd-mmc-3.17' into ibs-for-mfd-merged 2014-07-09 14:55:13 +01:00
Zhu, Lejun
7cf0a66f32 mfd: intel_soc_pmic: Crystal Cove support
This patch provides chip-specific support for Crystal Cove. Crystal
Cove is the PMIC in Baytrail-T platform.

Also adds Intel SoC PMIC support to the build files.

Signed-off-by: Yang, Bin <bin.yang@intel.com>
Signed-off-by: Zhu, Lejun <lejun.zhu@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-17 15:59:38 +01:00
Robert Baldyga
342d669c1e mfd: max77693: Handle IRQs using regmap
This patch modifies mfd driver to use regmap for handling interrupts.
It allows to simplify irq handling process. This modifications needed
to make small changes in function drivers, which use interrupts.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-17 15:17:00 +01:00
Linus Torvalds
1fe9eb1847 Changes to existing drivers:
- Increase DT coverage - arizona, mc13xxx, stmpe-i2c, syscon, sun6i-prcm
  - Regmap use of and/or clean-up - tps65090, twl6040
  - Basic renaming - max14577
  - Use new cpufreq helpers -  db8500-prcmu
  - Increase regulator support - stmpe, arizona, wm5102
  - Reduce legacy GPIO overhead - stmpe
  - Provide necessary remove path - bcm590xx
  - Expand sysfs presence - kempld
  - Move driver specific code out to drivers - rtc-s5m, arizona
  - Clk handling - twl6040
  - Use managed (devm_*) resources - ipaq-micro
  - Clean-up/remove unused/duplicated code - tps65218, sec, pm8921, abx500-core
    		   		     	    db8500-prcmu, menelaus
  - Build/boot/sematic bug fixes - rtsx_usb, stmpe, bcm590xx, abx500, mc13xxx
                                   rdc321x-southbridge, mfd-core, sec, max14577
 				  syscon, cros_ec_spi
  - Constify stuff 		- sm501, tps65910, tps6507x, tps6586x, max77686,
    	    	  		  max8997, kempld, max77693, max8907, rtsx_usb
 				  db8500-prcmu, max8998, wm8400, sec, lp3943,
 				  max14577, as3711, omap-usb-host, ipaq-micro
 Support for new devices:
  - Add support for max77836 into max14577
  - Add support for tps658640 into tps6586x
  - Add support for cros-ec-i2c-tunnel into cros_ec
  - Add new driver for rtsx_usb_sdmmc and rtsx_usb_ms
  - Add new driver for axp20x
  - Add new driver for sun6i-prcm
  - Add new driver for ipaq-micro
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Merge tag 'mfd-for-linus-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next

Pull MFD updates from Lee Jones:
 "Changes to existing drivers:
   - increase DT coverage: arizona, mc13xxx, stmpe-i2c, syscon,
     sun6i-prcm
   - regmap use of and/or clean-up: tps65090, twl6040
   - basic renaming: max14577
   - use new cpufreq helpers: db8500-prcmu
   - increase regulator support: stmpe, arizona, wm5102
   - reduce legacy GPIO overhead: stmpe
   - provide necessary remove path: bcm590xx
   - expand sysfs presence: kempld
   - move driver specific code out to drivers: rtc-s5m, arizona
   - clk handling: twl6040
   - use managed (devm_*) resources: ipaq-micro
   - clean-up/remove unused/duplicated code: tps65218, sec, pm8921,
     abx500-core, db8500-prcmu, menelaus
   - build/boot/sematic bug fixes: rtsx_usb, stmpe, bcm590xx, abx500,
     mc13xxx, rdc321x-southbridge, mfd-core, sec, max14577, syscon,
     cros_ec_spi
   - constify stuff: sm501, tps65910, tps6507x, tps6586x, max77686,
     max8997, kempld, max77693, max8907, rtsx_usb, db8500-prcmu,
     max8998, wm8400, sec, lp3943, max14577, as3711, omap-usb-host,
     ipaq-micro

  Support for new devices:
   - add support for max77836 into max14577
   - add support for tps658640 into tps6586x
   - add support for cros-ec-i2c-tunnel into cros_ec
   - add new driver for rtsx_usb_sdmmc and rtsx_usb_ms
   - add new driver for axp20x
   - add new driver for sun6i-prcm
   - add new driver for ipaq-micro"

* tag 'mfd-for-linus-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (77 commits)
  mfd: wm5102: Correct default for LDO Control 2 register
  mfd: menelaus: Use module_i2c_driver
  mfd: tps65218: Terminate of match table
  mfd: db8500-prcmu: Remove check for CONFIG_DBX500_PRCMU_DEBUG
  mfd: ti-keystone-devctrl: Add bindings for device state control
  mfd: palmas: Format the header file
  mfd: abx500-core: Remove unused function abx500_dump_all_banks()
  mfd: arizona: Correct addresses of always-on trigger registers
  mfd: max14577: Cast to architecture agnostic data type
  i2c: ChromeOS EC tunnel driver
  mfd: cros_ec: Sync to the latest cros_ec_commands.h from EC sources
  mfd: cros_ec: spi: Increase cros_ec_spi deadline from 5ms to 100ms
  mfd: cros_ec: spi: Make the cros_ec_spi timeout more reliable
  mfd: cros_ec: spi: Add mutex to cros_ec_spi
  mfd: cros_ec: spi: Calculate delay between transfers correctly
  mfd: arizona: Correct error message for addition of main IRQ chip
  mfd: wm8997: Add registers for high power mode
  mfd: arizona: Add MICVDD to mapped regulators
  mfd: ipaq-micro: Make mfd_cell array const
  mfd: ipaq-micro: Use devm_ioremap_resource()
  ...
2014-06-06 12:08:39 -07:00
Linus Walleij
dcc21cc09e mfd: Add driver for Atmel Microcontroller on iPaq h3xxx
This adds a driver for the Atmel Microcontroller found on the
iPAQ h3xxx series. This device handles some keys, the
touchscreen, and the battery monitoring.

This is a port of a driver from handhelds.org 2.6.21 kernel,
written by Alessandro Gardich based on Andrew Christians
original HAL-driver. It has been heavily cleaned and
converted to mfd-core by Dmitry Artamonow and rewritten
again for the v3.x series kernels by Linus Walleij,
bringing back some of the functionality lost from Andrew's
original driver.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alessandro Gardich <gremlin@gremlin.it>
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-03 08:11:42 +01:00
Boris BREZILLON
d58603cc30 mfd: Add support for sun6i PRCM (Power/Reset/Clock Management) unit
The PRCM (Power/Reset/Clock Management) block exposes several subdevices
in different subsystems (clk, reset ...)

Add basic support for the PRCM unit with clk (AR100, AHB0, and APB0 clks)
and reset controller subdevices.

Other subdevices might be added later (if needed).

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-03 08:11:40 +01:00
Carlo Caione
cfb61a4196 mfd: AXP20x: Add mfd driver for AXP20x PMIC
This patch introduces the preliminary support for PMICs X-Powers AXP202
and AXP209. The AXP209 and AXP202 are the PMUs (Power Management Unit)
used by A10, A13 and A20 SoCs and developed by X-Powers, a sister company
of Allwinner.

The core enables support for two subsystems:
- PEK (Power Enable Key)
- Regulators

Signed-off-by: Carlo Caione <carlo@caione.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-03 08:11:25 +01:00