Since 39b2bbe3 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.

Use this to simplify the driver. Furthermore this is one caller less
that stops us making the flags argument to gpiod_get*() mandatory.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

Reduce message priority from dev_err to dev_dbg for missing cmt-speech
or ssi-protocol drivers, since they will be probed again and it may
result in spamming the boot log.
Reported-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

The user interface for timestamps in the new cmt_speech
driver is broken in multiple ways:

- The layout is incompatible between 32-bit and 64-bit user
  space, because of the size differences in 'struct timespec'.
  This means that the driver can not work when used with 32-bit
  user space on a 64-bit kernel.

- As there are plans to change 32-bit user space to use
  a 64-bit time_t type in the future, it will also be
  incompatible with new 32-bit user space.

- It is using ktime_get_ts under it's deprecated alias
  (do_posix_clock_monotonic_gettime).

To keep support for the user space tools written for this driver (which
have lived many years out-of-tree), the interface has been hardened to
unsigned 32-bit values.
Reported-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

The idle cpus which stay in snooze for a long period can degrade the
perfomance of the sibling cpus. If the cpu stays in snooze for more
than target residency of the next available idle state, then exit from
snooze. This gives a chance to the cpuidle governor to re-evaluate the
last idle state of the cpu to promote it to deeper idle states.
Signed-off-by: NShilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: NPreeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Using -1 as platform device id means that the platform driver core will not
assign any id to the device (the device name will not have id at all). This
results problems on systems that have multiple PCHs (Platform Controller
HUBs) because all of them also include their own copy of LPC device.

All the subsequent device creations will fail because there already exists
platform device with the same name.

Fix this by passing PLATFORM_DEVID_AUTO as platform device id. This makes
the platform device core to allocate new ids automatically.
Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Since commit 1c6c6952 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Signed-off-by: NHongzhou Yang <hongzhou.yang@mediatek.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add MFD support for the DA9063 OnKey driver

The function da9063_clear_fault_log() is added to mitigate the case of a
hardware power-cut after a long-long OnKey press. Although there is no
software intervention in this case (by definition) such a shutdown would
cause persistent information within the DA9063 FAULT_LOG that would be
available during the next device restart.

Clearance of this persistent register must be completed after such a
hardware power-cut operation has happened so that the FAULT_LOG does not
continue with previous values. The clearance function has been added here
in the kernel driver because wiping the fault-log cannot be counted on
outside the Linux kernel.
Signed-off-by: NSteve Twiss <stwiss.opensource@diasemi.com>
[Lee: Removed 'key_power' for Dmitry to take through the Input Tree]
Signed-off-by: NLee Jones <lee.jones@linaro.org>

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: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Current code in mfd-core calls into ACPI to check resources even
on a system that booted with a DT (on kernels with both DT and ACPI
support compiled in). This triggers ACPI exceptions since we may
end up calling the ACPI interpreter when it has not been initialized:

"ACPI Exception: AE_BAD_PARAMETER, Thread 2064154624 could not acquire
Mutex [0x1] (20150410/utmutex-285)"

This patch fixes the issues by adding a check for an ACPI companion
device before carrying out ACPI resources checks to avoid calling
the ACPI interpreter if the fwnode representing the device is an OF one.

Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Later arizona silicon has the single/differential selector
in a different register, and IN1_MODE only selects between
analogue or digital. Prepare for this by splitting the
INx_MODE definition into two fields.
Signed-off-by: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

On the wm5110 it is important the reset line is held for slightly longer
to ensure the device starts up well. This patch adds a 5mS delay for
this.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Allow the chip to completely power off if we enter runtime suspend and
there is no jack detection active. This is helpful for systems where
system suspend might remove the supplies to the CODEC, without informing
us. Note the powering off is done in runtime suspend rather than system
suspend, because we need to hold reset until the first time DCVDD is
powered anyway (which would be in runtime resume), and we might as well
save the extra power.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The low power sleep mode on wm5110 requires that the LDO1 regulator be
set to 1.175V prior to entering sleep, then returned to 1.2V after
exiting sleep mode. This patch apply these regulator settings.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Some register settings must be applied before the first time low power
sleep mode is entered on the wm5110 to ensure optimium performance.
These settings require SYSCLK to be enabled whilst they are being
applied. This patch applies the settings using the recently factored out
boot time SYSCLK functionality.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

wm5102 applies a custom hardware boot sequence, for this the SYSCLK
needs to be enabled. This patch factors out the code that enables
SYSCLK for this sequence such that it can be used for other boot time
operations that require SYSCLK.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

In preparation for some refactoring fixup some minor style, formating
and code clarity issues.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The wm5102 uses a custom boot sequence and the standard boot sequence is
disabled. However, the standard boot sequence must be run at least once
after a cold boot (caused by either a hard reset or removal of AVDD).
Unfortunately the register WRITE_SEQUENCER_CTRL_3 is not affected by the
hardware reset. This means if the device has been previously booted but
the AVDD supply has never been removed, arizona_dev_init will reset the
chip but the boot sequence will not run, which can cause numerous
problems. The solution is to manually clear this register and then boot
the chip again, which is what this patch does.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch adds functions for enabling and disabling the physical reset
line. This will be helpful in future refactoring.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This also handily fixes a leak of the GPIO in arizona_dev_exit.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

I noticed the PMIC configuration on 37xx-evm won't actually shut down
the voltages during off-idle. Turns out 37xx-evm needs the AC charger
state transitions disabled like we are doing for SDP and LDP in the
legacy booting case.

Let's fix this for device tree based booting by setting up the quirk
flag based on the compatible flag. And let's also use the existing
define for STARTON_CHG.

Note that SDP and EVM do not have the PMIC clken wired to gate the
the oscillator while LDP has.
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This soft reset used to be located after the register patch had been
applied, but has since moved to before the patch is applied. At the new
location there is no requirement to do a register sync as no register
writes will have happened yet.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Constify in various drivers configuration data which is not modified:
 - regmap_irq_chip,
 - individual regmap_irq's in array,
 - regmap_config,
 - irq_domain_ops,
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

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

The CESA driver calls phys_to_virt() which is not available on all
architectures.
Remove the depency on COMPILE_TEST to prevent building this driver on
non ARM architectures.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Suggested-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add hwmon driver for the Microchip TC74.

The TC74 is a single-input 8-bit I2C temperature sensor,
with +-2 degrees centigrade accuracy.
Signed-off-by: NMaciej Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

This driver leaks out into arch/parisc builds that don't have
CONFIG_GENERIC_CLOCKEVENTS, leading to the following (truncated)
wreckage:

  CC      drivers/clocksource/timer-stm32.o
drivers/clocksource/timer-stm32.c:38:28: error: field 'evtdev' has incomplete type
drivers/clocksource/timer-stm32.c:44:19: warning: 'enum clock_event_mode' declared inside parameter list
drivers/clocksource/timer-stm32.c:44:19: warning: its scope is only this definition or declaration, which is probably not what you want
drivers/clocksource/timer-stm32.c:43:62: error: parameter 1 ('mode') has incomplete type
drivers/clocksource/timer-stm32.c:43:13: error: function declaration isn't a prototype
drivers/clocksource/timer-stm32.c: In function 'stm32_clock_event_set_mode':
drivers/clocksource/timer-stm32.c:47:3: error: type defaults to 'int' in declaration of '__mptr'
drivers/clocksource/timer-stm32.c:47:3: warning: initialization from incompatible pointer type
drivers/clocksource/timer-stm32.c:51:7: error: 'CLOCK_EVT_MODE_PERIODIC' undeclared (first use in this function)
drivers/clocksource/timer-stm32.c:51:7: note: each undeclared identifier is reported only once for each function it appears in
drivers/clocksource/timer-stm32.c:56:7: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function)

Tighten up the dependencies to limit where it gets built by copying
the style of the Kconfig line for CLKSRC_EFM32 a few lines above.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1434841352-24300-1-git-send-email-paul.gortmaker@windriver.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

clk_prepare_enable() may fail, so we should better check its return value
and propagate it in the case of error.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The picoXcell hardware crypto accelerator driver was using an
older version of the clk framework, and not (un)preparing the
clock before enabling/disabling it.  This change uses the handy
clk_prepare_enable function to interact with the current clk
framework correctly.
Signed-off-by: NMichael van der Westhuizen <michael@smart-africa.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The nx driver reads two crucial paramters from the firmware for
each crypto algorithm, the maximum SG list length and byte limit.
Unfortunately those two parameters may be bogus, or worse they
may be absent altogether.  When this happens the algorithms will
still register successfully but will fail when used or tested.

This patch adds checks to report any firmware entries which are
found to be bogus, and avoid registering algorithms which have
bogus parameters.  A warning is also printed when an algorithm
is not registered because of this as there may have been no firmware
entries for it at all.
Reported-by: NOndrej Moriš <omoris@redhat.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Cisco has developed a new PCI HBA interface called sNIC, which stands for
SCSI NIC. This is a new storage feature supported on specialized network
adapter. The new PCI function provides a uniform host interface and abstracts
backend storage.

[jejb: fix up checkpatch errors]
Signed-off-by: NNarsimhulu Musini <nmusini@cisco.com>
Signed-off-by: NSesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>

n /= range->step_uV + 1; is equivalent to n /= (range->step_uV + 1);
which is wrong. Fix it.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMark Brown <broonie@kernel.org>