Add helper function to write u32 to registers, if we want to put u32
value to 4 continuous register, this can help us reduce tedious work.
Signed-off-by: NMicky Ching <micky_ching@realsil.com.cn>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The MFD_ATMEL_HLCDC was first intended to be selected by its sub-devices
but these sub-devices now depends on this option, we thus need to add
a name and a description so that users can see it.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

After registering mfd device with proper irq_base
platform_get_irq_byname() calls will return VIRQ instead of local IRQ.
This fixes da9063 rtc registration issue:
da9063-rtc da9063-rtc: Failed to request ALARM IRQ 1: -22
Signed-off-by: NDmitry Lavnikevich <d.lavnikevich@sam-solutions.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Fix a typo in name of company in copyright comment.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

axp20x.c:239:30:
  warning: ‘axp20x_acpi_match’ defined but not used [-Wunused-variable]
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Change clk_enable/disable() calls to clk_prepare_enable() and
clk_disable_unprepare().
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Change clk_enable/disable() calls to clk_prepare_enable() and
clk_disable_unprepare().
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Signed-off-by: NLaurentiu Palcu <laurentiu.palcu@intel.com>

When the extra 4 channels were added to AIF2 the necessary frame control
registers were not given defaults and marked readable. This patch fixes
this.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>

The TC3589x driver is now a device tree-only driver, so we want
only dynamic IRQs and GPIO numbers from the tc3589x, no static
assignments.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

These registers are documented in the datasheet and used as part of the
extcon driver. Expose them properly through regmap as the datasheet
notes they should be treated as volatile do so.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>

Technically this register is not used on wm8997 however the regmap core
requires a continuous block of IRQs. The simplest solution is just to
add the register.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>

Change clk_enable/disable() calls to clk_prepare_enable() and
clk_disable_unrepapre().
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

First spotted pointless (incorrect) indent of 'if (ret)', then double
indentations of a struct attribute 'mask'.  Decided to go through the
whole file and make amendments instead and this is the result.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Some boards with TC6393XB chip require full state restore during system
resume thanks to chip's VCC being cut off during suspend (Sharp SL-6000
tosa is one of them). Failing to do so would result in ohci Oops on
resume due to internal memory contentes being changed. Fail ohci suspend
on tc6393xb is full state restore is required.

Recommended workaround is to unbind tmio-ohci driver before suspend and
rebind it after resume.

Cc: stable@vger.kernel.org
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

MFD core already cares about failing registration. It will remove successfully
registered devices in case of error. Thus, no need to repeatedly call
mfd_remove_devices().

Fixes: 5829e9b6 (mfd: lpc_sch: Accomodate partial population of the MFD devices)
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Precedence of & and >> is not the same and is not left to right.
shift has higher precedence and should be done after the mask.

Add parentheses around the mask.
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

ab8500_restart is not called from anywhere in the kernel, so drop it.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Also rid superfluous gotos and label.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Error check around return value of devm_ioremap is missing. Add the same
to avoid NULL pointer dereference.
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Commit e7cd1d1e ("mfd: twl4030-power: Add generic reset
configuration") accidentally removed the compatible flag for
"ti,twl4030-power" that should be there as documented in the
binding.

If "ti,twl4030-power" only the poweroff configuration is done
by the driver.

Fixes: e7cd1d1e ("mfd: twl4030-power: Add generic reset configuration")
Cc: stable@vger.kernel.org # v3.16+
Reported-by: N"Dr. H. Nikolaus Schaller" <hns@goldelico.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

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: NMicky Ching <micky_ching@realsil.com.cn>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add information which regulators can be disabled during system suspend.
Suggested-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This reverts commit b7cde707
("mfd: sec-core: Prepare regulators for suspend state to reduce power-consumption")

Commit b7cde707 called regulator_suspend_prepare() to prepare the
regulators for a suspend state. But it did from the device pm suspend
handler while the regulator suspend prepare function iterates over all
regulators and not only the one managed by this device so it doesn't
seems to be correct to call it from within a device driver.

It is better to call the regulator suspend prepare/finish functions
from platform code instead so this patch reverts the mentioned commit.
Suggested-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add a "maxim,max77693-charger" of_compatible to the mfd_cell so the MFD
child device (the charger) will have its own of_node set. This will be
used by the max77693 charger driver in next patches to obtain battery
configuration from DTS.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This was found whilst running checkpatch.pl on arizona-spi.

WARNING: Missing a blank line after declarations
+       struct arizona *arizona = spi_get_drvdata(spi);
+       arizona_dev_exit(arizona);
Signed-off-by: NWill Sheppard <wsheppard@embedded-bits.co.uk>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Remove old MAX77693_NUM_IRQ_MUIC_REGS define. Not used anywhere.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

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

This patch adds documentation for atmel-hlcdc DT bindings.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: NAnthony Harivel <anthony.harivel@emtrion.de>
Tested-by: NLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

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: NBoris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: NAnthony Harivel <anthony.harivel@emtrion.de>
Tested-by: NLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Make sure to always honour multi-function devices registered with
PLATFORM_DEVID_NONE (-1) or PLATFORM_DEVID_AUTO (-2) as id base. In this
case it does not make sense to append the cell id to the mfd-id base and
potentially change the requested behaviour.

Specifically this will allow multi-function devices to be registered
with PLATFORM_DEVID_AUTO while still having non-zero cell ids.
Signed-off-by: NJohan Hovold <johan@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Use mfd_add_hotplug_devices() helper to register the subdevices.

Compile-only tested.
Signed-off-by: NJohan Hovold <johan@kernel.org>
Acked-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Use mfd_add_hotplug_devices helper to register the subdevices.
Signed-off-by: NJohan Hovold <johan@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Currently a syscon entity can be only registered directly through a
platform device that binds to a dedicated syscon driver. However in
certain use cases it is desirable to make a device used with another
driver a syscon interface provider.

For example, certain SoCs (e.g. Exynos) contain system controller
blocks which perform various functions such as power domain control,
CPU power management, low power mode control, but in addition contain
certain IP integration glue, such as various signal masks,
coprocessor power control, etc. In such case, there is a need to have
a dedicated driver for such system controller but also share registers
with other drivers. The latter is where the syscon interface is helpful.

In case of DT based platforms, this patch decouples syscon object from
syscon platform driver, and allows to create syscon objects first time
when it is required by calling of syscon_regmap_lookup_by APIs and keep
a list of such syscon objects along with syscon provider device_nodes
and regmap handles.

For non-DT based platforms, this patch keeps syscon platform driver
structure so that syscon can be probed and such non-DT based drivers
can use syscon_regmap_lookup_by_pdev API and access regmap handles.
Once all users of "syscon_regmap_lookup_by_pdev" migrated to DT based,
we can completely remove platform driver of syscon, and keep only helper
functions to get regmap handles.
Suggested-by: NArnd Bergmann <arnd@arndb.de>
Suggested-by: NTomasz Figa <tomasz.figa@gmail.com>
Tested-by: NVivek Gautam <gautam.vivek@samsung.com>
Tested-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: NArnd Bergmann <arnd@arndb.de>
Tested-by: NHeiko Stuebner <heiko@sntech.de>
Reviewed-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch add haptic DT binding documentation and example
to support haptic driver in max77693 Multifunction device.
Signed-off-by: NJaewon Kim <jaewon02.kim@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch add haptic of_compatible in order to use the haptic
device driver using Devicetree.
Signed-off-by: NJaewon Kim <jaewon02.kim@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch add regmap_haptic initialization to use haptic register map
in haptic device driver.
Signed-off-by: NJaewon Kim <jaewon02.kim@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Adds of_compatible strings to mfd_cells for sub devices of the tps65217.
Signed-off-by: NJohannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Merge branches 'ib-mfd-gpio-i2c-3.19', 'ib-mfd-iio-3.19' and 'ib-mfd-regulator-v3.19', tag 'ib-mfd-regulator-clk-v3.19' into ibs-for-mfd-merged

Immutable branch between MFD, Regulator and Clk, due for v3.19

This patch adds the binding documentation for Samsung S2MPS13 PMIC
which is similiar with existing S2MPS14 PMIC. S2MPS13 has the different number
of regulators from S2MPS14 and RTC/Clock is the same with the S2MPS14.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NSangbeom Kim <sbkim73@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch adds the support for S2MPS13 PMIC clock which is same with existing
S2MPS14 RTC IP. But, S2MPS13 uses all of clocks (32khz_{ap|bt|cp}).
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NMichael Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>