Reread the gpadc once upon failure.
Signed-off-by: NJonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMattias WALLIN <mattias.wallin@stericsson.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

suspend/resume methods implemented to prevent suspend while the gpadc
driver is busy.
Signed-off-by: NDaniel WILLERUD <daniel.willerud@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Reviewed-by: NUlf HANSSON <ulf.hansson@stericsson.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

In L9540, turn_on_status register is not updated correctly if
the device is rebooted with AC/USB charger connected. Due to
this, the device boots android instead of entering into charge
only mode. Read the AC/USB status register to detect the charger
presence and update the turn on status manually.
Signed-off-by: NRajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: NPer Forlin <per.forlin@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NRupesh KUMAR <rupesh.kumar@stericsson.com>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Tested-by: NRupesh KUMAR <rupesh.kumar@stericsson.com>
Tested-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

Convert to the much saner new idr interface.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

And fix a kzalloc argument inversion bug while converting to devres.
Signed-off-by: NAaron Sierra <asierra@xes-inc.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This patch adds the Watchdog Timer Device IDs for the Intel Wellsburg PCH
Signed-off-by: NJames Ralston <james.d.ralston@intel.com>
Acked-by: NPeter Tyser <ptyser@xes-inc.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The current probe aborts if any of the 3 base address registers are
disabled. On a TunnelCreek system I am working on, this resulted in the
SMBIOS and GPIO devices being removed when it couldn't read the base
address for the watchdog timer.

This patch accommodates partial population of the lpc_sch_cells array and
only aborts if all the base address registers are disabled. A max size
array is allocated and the individual device cells are added to it after
their base addresses are successfully determined. This simplifies the
code a bit by removing the need for the separate tunnelcreek cells array
and combining some of the add/remove logic.

Cc: Grant Likely <grant.likely@secretlab.ca>,
Cc: Denis Turischev <denis@compulab.co.il>,
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

da9052_i2c_fix() is only used locally, so let it be static.

Fix the following sparse warning:

drivers/mfd/da9052-i2c.c:63:5: warning: symbol 'da9052_i2c_fix' was not declared. Should it be static?

Cc: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Fix the following sparse warnings:

drivers/mfd/syscon.c:40:15: warning: symbol 'syscon_node_to_regmap' was not declared. Should it be static?
drivers/mfd/syscon.c:56:15: warning: symbol 'syscon_regmap_lookup_by_compatible' was not declared. Should it be static?
drivers/mfd/syscon.c:72:15: warning: symbol 'syscon_regmap_lookup_by_phandle' was not declared. Should it be static?

Cc: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Commit 8a6aaa3 (mfd: twl-core: Collect global variables behind one
private structure (global)) removed the variable "inuse" that is used
to determine if the device has been initialised and now use the
twl_priv structure instead. This is causing the kernel to panic on
OMAP3+ devices using the twl driver, because we try to access the
twl_priv->ready member before checking if twl_priv is initialised. Fix
this and move this test to the beginning of the twl_i2c_read/write
function because twl_get_last_module() also uses the twl_priv structure.
Signed-off-by: NJon Hunter <jon-hunter@ti.com>
Acked-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Realtek card reader supports both SD and MS card. According to the
settings of rtsx MFD driver, SD host will be probed before MS host.
If we boot/reboot Linux with SD card inserted, the resetting flow of SD
card will succeed, and the following resetting flow of MS is sure to fail.
Then MS upper-level driver will ask rtsx driver to turn power off. This
request leads to the result that the following SD commands fail and SD card
can't be accessed again.

In this commit, Realtek's SD and MS host driver will check whether the card
that upper driver requesting is the one existing in the slot. If not, Realtek's
host driver will refuse the operation to make sure the exlusive accessing
at the same time.
Signed-off-by: NWei WANG <wei_wang@realsil.com.cn>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

When compiling the AB8500 core driver in the latest
MFD tree the following happens:

  CC      drivers/mfd/ab8500-debugfs.o
/home/elinwal/linux-next/drivers/mfd/ab8500-debugfs.c:157:3: error: 'AB8500_SYS_CTRL1_BLOCK' undeclared here (not in a function)
/home/elinwal/linux-next/drivers/mfd/ab8500-debugfs.c:157:2: error: array index in initializer not of integer type
/home/elinwal/linux-next/drivers/mfd/ab8500-debugfs.c:157:2: error: (near initialization for 'debug_ranges')
(...)

This is due to a missing include statement, so fix
it up.

Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

A lot of mfd drivers select MFD_CORE which however depends on
GENERIC_HARDIRQS support.
So add the missing dependency to all drivers to get rid of
this link error:

ERROR: "irq_create_mapping" [drivers/mfd/mfd-core.ko] undefined!
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

update onkey driver's irq base, it should get from max8925,
but not save in a private value
Signed-off-by: NQing Xu <qingx@marvell.com>
Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

we encounter rtc/power/touch driver registry failure, root cause
it is resources confilict in insert_resouce, solved by changing
mfd_add_devices 5th parameter to NULL
Signed-off-by: NQing Xu <qingx@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add irqdomains for max8925's main irq, wrap irq register operations
into irqdomain's map func. it is necessary for dt support.

Also, add dt support for max8925 driver.
Signed-off-by: NQing Xu <qingx@marvell.com>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The vexpress_sysreg_init() is a core_initcall() already and it can
trigger the early initialisation if a matching node is found. This patch
allows the SoC code to avoid calling vexpress_sysreg_of_early_init()
explicitly.
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NPawel Moll <pawel.moll@arm.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Support new model RTS5227.
Signed-off-by: NRoger Tseng <rogerable@realtek.com>
Reviewed-by: NWei WANG <wei_wang@realsil.com.cn>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Implement different ways of selecting driving capability(a necessary adjustment
along with voltage change). It was origionally in device-independent
mmc/host/rtsx_pci_sdmmc.c. Moving it here to support devices which may have a
different way of adjustment.
Signed-off-by: NRoger Tseng <rogerable@realtek.com>
Reviewed-by: NWei WANG <wei_wang@realsil.com.cn>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The LEDs on the Versatile Express motherboard are controlled
through simple memory-mapped register. This patch extends
the pseudo-GPIO controller definition for these lines and
creates generic "leds-gpio" device using them
Signed-off-by: NPawel Moll <pawel.moll@arm.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

We are using a generic abx500 hwmon layer, so rename specific ab8500 to generic
abx500 for hwmon device and driver matching.
Signed-off-by: NHongbo Zhang <hongbo.zhang@linaro.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

1. Schedule card detect work at the end of the ISR
2. Callback function ops->cd_deglitch may delay for a period of time.
It is not proper to call this callback when local irq disabled.
3. Card detect flow can't be executed in parallel with other card reader
operations, so it's better to be protected by mutex.
Signed-off-by: NWei WANG <wei_wang@realsil.com.cn>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

In function rtsx_pci_switch_clock, some variables, such as min_n, max_n,
and max_div, are not necessary. And those assigned values look very
obscure for others. It's more proper to use macro definitions here to
replace these variables.
Signed-off-by: NWei WANG <wei_wang@realsil.com.cn>
Acked-by: NBorislav Petkov <bp@alien8.de>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

WARNING: Avoid CamelCase: <min_N>
+	u8 N, min_N, max_N, clk_divider;

WARNING: Avoid CamelCase: <max_N>
+	u8 N, min_N, max_N, clk_divider;
Signed-off-by: NWei WANG <wei_wang@realsil.com.cn>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Realtek PCIe card reader only supports 32bit DMA.
This declaration can improve the readability.
Signed-off-by: NWei WANG <wei_wang@realsil.com.cn>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

In function rtsx_pci_add_sg_tbl, the statement "ptr++" is useless.
Signed-off-by: NWei WANG <wei_wang@realsil.com.cn>
Acked-by: NBorislav Petkov <bp@alien8.de>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The tps65090 mfd driver implement the suspend/resume callbacks
which just disable and enable irqs in suspend/resume respectively.

This operation is already done in irq suspend and irq_resume and
hence it is not require to implement the same in the driver.

Remove this non-require code.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

When device is get added through DT then irq_base is 0 (zero)
and in this case regmap_irq_chip_get_base() generates warning.
The interrupt of this device get added through irq_domain_add_linear()
when irq_base is 0.

Hence pass the irq domain in place of base_irq when calling
mfd_add_devices().
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add device tree support for the TI PMIC TPS65090.
The device can be registered through platform or DT.

Add device tree binding document for this device.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add device tree based initialization support for TI's
tps6507x mfd device.
Signed-off-by: NVishwanathrao Badarkhe, Manish <manishv.b@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

devm_* functions are device managed and make error handling
and code simpler; it also fix error exit paths
Signed-off-by: NYi Zhang <yizhang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This patch adds the necessary structures to use the watchdog
functionality of PRCMU.

The watchdog driver is named ux500_wdt.
Acked-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add EXPORT_SYMBOL to db500_prcmu_*_a9wdog functions to allow usage from
module.
Acked-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

In ICH5 and earlier the GPIOBASE and GPIOCTRL registers are found at
offsets 0x58 and 0x5C, respectively. This patch allows GPIO access to
properly be enabled (and disabled) for these chipsets.
Signed-off-by: NAgócs Pál <agocs.pal.86@gmail.com>
Signed-off-by: NAaron Sierra <asierra@xes-inc.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

twl_i2c_read/write_u8 become as a simple wrapper over the twl_i2c_read/write.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

With the regmap conversion there is no longeer a need to allocate bigger
buffer for writes
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Gather the global variables under a single structure and allocate it with
devm_kzalloc(). It is easier to see them and if in the future we try to add
support for multiple instance of twl in the system it is going to be much
simpler.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

We can fail earlier in case multiple instance of the twl-core is tried to
be loaded.
The twl-core by design only supports one instance.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

When booted with DT we can manage without the dummy pdata.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>