This patch removes platform data usage for codec and touchscreen
when driver is used with devicetree.
This fixes possible "null pointer dereference" error if DTS uses
"fsl,mc13xxx-uses-codec" or "fsl,mc13xxx-uses-touch" options.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

When the MCLK is 19.2 or 38.4 MHz the HPPLL need to be enabled and can be
put in bypass mode.
This will fix HPPLL use on boards with 19.2MHz mclk.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

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>

If we pass syscon device node itself as first parameter to this function
there is no need to parse and find syscon device node. So by allowing
"property" parameter as NULL allow syscon_regmap_lookup_by_phandle to
consider passed argument "np" itself as a syscon device node "syscon_np".
This will help us in avoiding addition of "syscon" property in a device node
which points back to same device node in device tree.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The pm8xxx read/write wrappers are no longer necessary now that
all the sub-device drivers are using the regmap API. Remove it.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

During suspend the IRQ should be disabled even if this is not a wakeup
source. This is a proper way of fixing the IRQ handling issue during
resume (IRQ handler fails because I2C bus did not resume yet).

When device is suspended and max14577 interrupt is signaled the irq chip
will try to handle it regardless of wakeup source. Device could be woken
up by different IRQ but still the IRQ handler will try to read the
registers over I2C bus and fail because I2C bus won't be ready yet:
	max14577 2-0025: Failed to read IRQ status: -5
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

During suspend the IRQ should be disabled even if this is not a wakeup
source. This is a proper way of fixing the IRQ handling issue during
resume (IRQ handler fails because I2C bus did not resume yet).

When device is suspended and sec-core interrupt is signaled the irq chip
will try to handle it regardless of wakeup source. Device could be woken
up by different IRQ but still the IRQ handler will try to read the
registers over I2C bus and fail because I2C bus won't be ready yet.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The device type was stored in sec_pmic_dev state container twice:
 - unsigned long type (initialized from of_device_id or i2c_device_id)
 - int device_type (initialized as above or from board files when there
   is no DTS)

The 'type' field was never used outside of probe so it can be safely
removed.

Change also the device_type in sec_pmic_dev and sec_platform_data to
unsigned long to avoid any casts.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Make sure that we patch the ACCCTL register as the first thing when the
driver loads, thus configuring I2C fast mode and i2c access for dual access
registers.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

In certain boards the source for the clk32k clock can be gated. In these
boards the clk32k clock can be provided to the driver and it is going to be
enabled/disabled when it is needed.
If the clk32k clock is not provided the driver will assume that it is always
running.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

All boards using twl6040 configures the i2c bus to 400KHz. While twl6040's
defaults to normal mode (100KHz). So far twl6040 has no problem with i2c
communication in this configuration it is safer to select fast i2c mode.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

If for some reason the boot loader enabled the audpwron GPIO we will have
pending IRQs to be handled. This seams to break twl6040 for some reason
leading to non working i2c communication (i2c timeouts). Clearing the INTID
register after we requested the audpwron GPIO (and set it to low) will
ensure that the chip will operate normally in this case as well.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The supply aliases for the MFD devices were being added using devres but
the device hasn't been added at this point and as such we can't use
devres.

The MFD already has a function that removes devices this patch uses the
non-devres versions of the supply alias functions and adds an unregister
in mfd_remove_devices_fn.
Reported-by: Carlo Caione <carlo@caione.org>
Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The valid gpio is GPIO0 ~ GPIO58, so ngpio should be 59.
This patch also renames RDC321X_MAX_GPIO to RDC321X_NUM_GPIO because it
actually means the number of available GPIOs.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Update the documentation for sec_pmic state container structure to
reflect current code.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The rtc-s5m driver does not support all of S2M and S5M chipsets
supported by main MFD sec-core driver. For such chipsets unsupported by
rtc-s5m, the MFD sec-core driver initialized regmap with default config.
This config in such cases wouldn't work at all.

The main MFD sec-core driver shouldn't initialize regmap for child
drivers which is not used by them and even not valid.

Move the allocation of RTC I2C dummy device and initialization of RTC
regmap from main MFD sec-core driver to the rtc-s5m driver. The rtc-s5m
driver will use proper regmap config for supported devices.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This module has always been GPL licensed. It was just missing the explicit
declaration to avoid tainting the kernel.
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Panther Point PCH GPIO configuration is similar to V5 PCHs.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The isolation control register is required when DCVDD is externally
supplied add this in as a readable register.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The *rdev[] is not used since commit 413be59e
"regulator: tps65218: Remove unnecessary regulator_unregister call".
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

After request_threaded_irq() is called there is a chance that an interrupt
may occur before the 'mc13xxx->lock' is initialized, which will trigger a kernel
oops.

In order to prevent that, move the initialization of 'mc13xxx->lock' prior to
requesting the interrupts.
Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

On systems with CONFIG_FRAME_WARN=1024, compiler warns the allocation of
an object of struct device on stack. Make the allocation dynamically to
fix the warning. Also change the caller's return type to int so as to
account for error handling.

drivers/mfd/abx500-core.c: In function ‘abx500_dump_all_banks’:
drivers/mfd/abx500-core.c:167:1: warning: the frame size of 1032 bytes
is larger than 1024 bytes [-Wframe-larger-than=]
Signed-off-by: Aurabindo J <mail@aurabindo.in>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch adds attributes to the Kontron PLD driver to allow
applications to retrieve firmware information.
Additionally the format has been changed to conform with the
representation in other Kontron software.
Signed-off-by: Michael Brunner <michael.brunner@kontron.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This is a i2c driver, so uses i2c prefix in modalias.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add missing mfd_remove_devices() call in remove function.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Merge branches 'ib-from-asoc-3.16', 'ib-from-pm-3.16', 'ib-from-regulator-3.16', 'ib-mfd-gpio-3.16' and 'ib-mfd-mmc-memstick-3.16', tags 'ib-mfd-extcon-3.16', 'ib-mfd-omap-3.16' and 'ib-mfd-regulator-3.16' into ibs-for-mfd-merged

regulator: Support newer revisions of tps658640

There are two different variants of the tps658640 with slightly
different feature sets.

The TPS658640 has a different set of output voltage for most LDO and
the RTC LDO isn't settable. This chip also report 2 different version
ID, as the datasheet doesn't list the possible values the second ID
has simply been named TPS658640v2.
Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

Add the required definitions and macros to allow easily adding fixed
regulators. This required for the TPS658640 that doesn't allow setting
the LDO_RTC output voltage.
Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

The only platform using the STMPE expander now boots from
device tree using all-dynamic GPIO and IRQ number assignments, so
remove the mechanism to pass this from the device tree entirely.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Pull two powerpc fixes from Ben Herrenschmidt:
 "Here are a couple of fixes for 3.15.  One from Anton fixes a nasty
  regression I introduced when trying to fix a loss of irq_work whose
  consequences is that we can completely lose timer interrupts on a
  CPU... not pretty.

  The other one is a change to our PCIe reset hook to use a firmware
  call instead of direct config space accesses to trigger a fundamental
  reset on the root port.  This is necessary so that the FW gets a
  chance to disable the link down error monitoring, which would
  otherwise trip and cause subsequent fatal EEH error"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: irq work racing with timer interrupt can result in timer interrupt hang
  powerpc/powernv: Reset root port in firmware

Pull two btrfs fixes from Chris Mason:
 "This has two fixes that we've been testing for 3.16, but since both
  are safe and fix real bugs, it makes sense to send for 3.15 instead"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: send, fix incorrect ref access when using extrefs
  Btrfs: fix EIO on reading file after ioctl clone works on it

Pull two ceph fixes from Sage Weil:
 "The first patch fixes a problem when we have a page count of 0 for
  sendpage which is triggered by zfs.  The second fixes a bug in CRUSH
  that was resolved in the userland code a while back but fell through
  the cracks on the kernel side"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  crush: decode and initialize chooseleaf_vary_r
  libceph: fix corruption when using page_count 0 page in rbd

Pull xfs fixes from Dave Chinner:
 "Code inspection of the XFS error number sign translations found a
  bunch of issues, including returning incorrectly signed errors for
  some data integrity operations.

  These leak to userspace and result in applications not getting the
  errors correctly reported.  Hence they need fixing sooner rather than
  later.

  A couple of the bugs are in data integrity operations, a couple more
  are in the new COLLAPSE_RANGE code.  One of these came in through a
  recent ext4 merge and so I had to update the base tree to 3.15-rc5
  before fixing the issues"

* tag 'xfs-for-linus-3.15-rc6' of git://oss.sgi.com/xfs/xfs:
  xfs: list_lru_init returns a negative error
  xfs: negate xfs_icsb_init_counters error value
  xfs: negate mount workqueue init error value
  xfs: fix wrong err sign on xfs_set_acl()
  xfs: fix wrong errno from xfs_initxattrs
  xfs: correct error sign on COLLAPSE_RANGE errors
  xfs: xfs_commit_metadata returns wrong errno
  xfs: fix incorrect error sign in xfs_file_aio_read
  xfs: xfs_dir_fsync() returns positive errno