The call to kstrtoul() will corrupt memory on 64 bit systems because an
int is 4 bytes and a long is 8.

Also it's not a good idea to let users trigger a dev_err() because it
just ends up flooding /var/log/messages so I removed the printk.

Fixes: 2ddd2086ea9c ('mfd: add Intel Broxton Whiskey Cove PMIC driver')
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The invoked functions already return zero on success or a negative
errno code so there is no need to open code the logic in the caller.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The invoked functions already return zero on success or a negative
errno code so there is no need to open code the logic in the caller.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The invoked function already returns zero on success or a negative
errno code so there is no need to open code the logic in the caller.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The invoked functions already return zero on success or a negative
errno code so there is no need to open code the logic in the caller.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The invoked functions already return zero on success or a negative
errno code so there is no need to open code the logic in the caller.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The ret variable is not needed since is not used in the
function. Remove the variable and just return 0 instead.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The ret variable is not needed since is not used in the
function. Remove the variable and just return 0 instead.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The ret variable is not needed since is not used in the
function. Remove the variable and just return 0 instead.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

tps6105 driver provides two cells. One is for GPIO and another one is
for selected mode depending on platform data. When tps6105x is used in
GPIO-only mode, this driver calls mfd_add_devices() with mfd_cell
.name == NULL. This value causes an oops in platform_device_register()
later.

The following patch adds a mfd_cell for each possible mode thereby
excluding .name assignment in runtime.
Signed-off-by: NDenis Grigoryev <grigoryev@fastwel.ru>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The driver handles wakeup irq correctly using irq_set_irq_wake. There's
no need to use IRQF_NO_SUSPEND while registering the interrupt.

This patch removes the use of IRQF_NO_SUSPEND flag.
Signed-off-by: NSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch solves:

on x86_64:

when CONFIG_ACPI is not enabled:

../drivers/mfd/intel_soc_pmic_bxtwc.c: In function 'bxtwc_probe':
../drivers/mfd/intel_soc_pmic_bxtwc.c:342:2:
    error: implicit declaration of function 'acpi_evaluate_integer' [-Werror=implicit-function-declaration]
        status = acpi_evaluate_integer(handle, "_HRV", NULL, &hrv);
        ^
Reported-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Some EC implementations include a small nvram space used to store
verified boot context data. This boolean property lets us indicate
whether this space is available or not on a specific EC implementation.
Signed-off-by: NEmilio López <emilio.lopez@collabora.co.uk>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The lpc_ich_cells array gives the wrong impression about the
relationship between the watchdog and GPIO devices. They are
completely distinct devices, so this patch separates the
array into distinct mfd_cell structs per device.

A side effect of removing the array, is that the lpc_cells enum
is no longer needed.
Signed-off-by: NAaron Sierra <asierra@xes-inc.com>
Acked-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

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: NQipeng Zha <qipeng.zha@intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

IRQ control registers of Intel Broxton Whisky Cove PMIC are
separated in two parts, so add secondary IRQ chip.
And the new member of device will be used in PMC IPC regmap APIs.
Signed-off-by: NQipeng Zha <qipeng.zha@intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The driver has a I2C device id table that is used to create the module
aliases which already contains a "rt5033". So the alias is not needed.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The driver has a I2C device id table that is used to create the module
aliases and also "bcm590xx" isn't a supported I2C id, so it's never used.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add tps65217 battery charger subdevice.
Signed-off-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Remove defaults for a bunch of volatile registers and remove
ARIZONA_CTRL_IF_SPI_CFG_1 from the readable list since it doesn't exist
on wm8998 which is I2C only.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Some Arizona devices have a hardware ANC block present. This patch adds
the registers necessary to configure this hardware block.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The type of the data for the main Arizona IRQ chip should be struct
arizona not struct regmap_irq_chip_data. The bug is harmless but should
probably be corrected anyway.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The driver always checks for pdata being NULL except in one place.
Add a check to prevent a possible NULL pointer deference error.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

On Odroid XU3 board (with S2MPS11 PMIC) the PWRHOLD bit in CTRL1
register must be manually set to 0 before initiating power off sequence.

One of usual power down methods for Exynos based devices looks like:
1. PWRHOLD pin of PMIC is connected to PSHOLD of Exynos SoC.
2. Exynos holds up this pin during system operation.
3. ACOKB pin of PMIC is pulled up to VBATT and optionally to pin in
   other device.
4. When PWRHOLD/PSHOLD goes low, the PMIC will turn off the power if
   ACOKB goes high.

On Odroid XU3 family the difference is in (3) - the ACOKB is grounded.
This means that PMIC must manually set PWRHOLD field to low and then
wait for signal from Application Processor (the usual change in
PWRHOLD/PSHOLD pin will actually cut off the power).

The patch adds respective binding allowing Odroid XU3 device to be
powered off.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Reported-by: NAnand Moon <linux.amoon@gmail.com>
Tested-by: NAnand Moon <linux.amoon@gmail.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

There are already helper functions to do 64-bit I/O on 32-bit machines, thus we
don't need to reinvent the wheel. In our case we can't use readq() / writeq()
even on 64-bit kernel since there is a hardware limitation (OCP bus is a 32-bit
bus).
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: NLuis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: NLuis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: NLuis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: NLuis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Introduced by:
commit 8019ff6c ("regmap: Use reg_sequence for multi_reg_write / register_patch")

Interacting with:
commit 561629755a21 ("mfd: arizona: Add support for WM8998 and WM1814")
commit 81207880 ("mfd: wm5110: Add register patch for rev E and above")
Signed-off-by: NNariman Poushin <nariman@opensource.wolfsonmicro.com>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

On the STMPE2401 and STMPE2401 altfunction 1 corresponds to the
PWM channels. This oneliner was missing in the case-switch, making
it impossible to enable the PWM channel output.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Commit 68bab866 ("mfd: twl6040: Optional clk32k clock handling")
added clock handling for the 32k clock from palmas-clk. However, that
patch did not consider a typical situation where twl6040 is built-in,
and palmas-clk is a loadable module like we have in omap2plus_defconfig.

If palmas-clk is not loaded before twl6040 probes, we will get a
"clk32k is not handled" warning during booting. This means that any
drivers relying on this clock will mysteriously fail, including
omap5-uevm WLAN and audio.

Note that for WLAN, we probably should also eventually get
the clk32kgaudio for MMC3 directly as that's shared between
audio and WLAN SDIO at least for omap5-uevm. It seems the
WLAN chip cannot get it as otherwise MMC3 won't get properly
probed.

Fixes: 68bab866 ("mfd: twl6040: Optional clk32k clock handling")
Signed-off-by: NTony Lindgren <tony@atomide.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add chip identification support for 88PM860 device
to the pm80x_chip_mapping table.
Signed-off-by: NVaibhav Hiremath <vaibhav.hiremath@linaro.org>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The Documentation/devicetree/bindings/mfd/cros-ec.txt DT binding doc lists
"google,cros-ec-i2c" as a compatible string but the corresponding driver
does not have an OF match table. Add the table to the driver so the I2C
core can do an OF style match.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Merge branches 'ib-extcon-mfd-4.4', 'ib-mfd-i2c-v4.4', 'ib-mfd-power-4.4', 'ib-mfd-regmap-4.4' and 'ib-mfd-regulator-4.4' into ibs-for-mfd-merged

There is a 24c08 chip connected to i2c bus on Intel Galileo Gen2 board. Enable
it via ACPI ID INT3499.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

On Intel Galileo Gen2 the GPIO expanders are connected to the i2c bus. For
those devices the ACPI table has specific parameters that refer to an actual
i2c host controller. Since MFD now copes with that specific configuration we
have to provide a necessary information how to distinguish devices in ACPI
namespace. Here the _ADR values are provided.
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

On Intel Galileo boards the GPIO expander is connected to i2c bus. Moreover it
is able to generate interrupt, but interrupt line is connected to GPIO. That's
why we have to have GPIO driver in place when we will probe i2c host with
device connected to it.
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

There is at least one board on the market, i.e. Intel Galileo Gen2, that uses
_ADR to distinguish the devices under one actual device. Due to this we have to
improve the quirk in the MFD core to handle that board.
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>