Commit Graph

691473 Commits

Author SHA1 Message Date
Steve Twiss
2cd6496d81 mfd: da9061: Fix to remove BBAT_CONT register from chip model
Remove the register DA9062AA_BBAT_CONT (0x0C5) from the DA9061 chip model
regmap access ranges. This applies to both da9061_aa_readable_ranges[]
and da9061_aa_writeable_ranges[].

This change is to correct the DA9061 chip model and align it with the
latest DA9061 Datasheet.

This register previously appeared in the DA9061 Datasheet, Revision 3.2,
01-Mar-2016 and has been removed from later DA9061 datasheet from Dialog,
Revision 3.3, 04-Apr-2017.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:13 +01:00
Hans de Goede
aaac4a2ead mfd: axp20x-i2c: Document that this must be builtin on x86
On x86 the AXP288 PMIC provides an ACPI OpRegion handler, which must be
available before other drivers using it are loaded, which can only be
ensured if the MFD, OpRegion and i2c-bus drivers are built-in.

Since the AXP20x MFD code is used on non x86 too we cannot simply change
this into a bool, I've tried some Kconfig magic with if x86 but I could
not get this working correctly, so this commit just documents that this
should be built-in on x86, which fixes errors like these during boot:

mmc0: SDHCI controller on ACPI [80860F14:00] using ADMA
ACPI Error: No handler for Region [REGS] (ffff93543b0cc3a8) [UserDefinedRegion]
ACPI Error: Region UserDefinedRegion (ID=143) has no handler (20170119/exfldio-2
ACPI Error: Method parse/execution failed [\_SB.PCI0.I2C7.PMI5.GET] (Node ffff93
ACPI Error: Method parse/execution failed [\_SB.PCI0.SHC1._PS0] (Node ffff93543b
acpi 80860F14:02: Failed to change power state to D0

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: russianneuromancer <russianneuromancer@ya.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:13 +01:00
Hans de Goede
de85d79f4a mfd: Add Cherry Trail Whiskey Cove PMIC driver
Add mfd driver for Intel CHT Whiskey Cove PMIC, based on various non
upstreamed CHT Whiskey Cove PMIC patches.

This is a somewhat minimal version which adds irqchip support and cells
for: ACPI PMIC opregion support, the i2c-controller driving the external
charger irc and the pwrsrc/extcon block.

Further cells can be added in the future if/when drivers are upstreamed
for them.

[The above patch caused a build error on some archetectures]

From: Arnd Bergmann <arnd@arndb.de>

I ran into a build error on ARM with a platform that has a non-standard
clk implementation:

drivers/clk/clk.o: In function `clk_disable':
clk.c:(.text.clk_disable+0x0): multiple definition of `clk_disable'
arch/arm/mach-omap1/clock.o:clock.c:(.text.clk_disable+0x0): first defined here
drivers/clk/clk.o: In function `clk_enable':
clk.c:(.text.clk_enable+0x0): multiple definition of `clk_enable'
arch/arm/mach-omap1/clock.o:clock.c:(.text.clk_enable+0x0): first defined here

The problem is a device driver that uses 'select COMMON_CLK', which is
generally a bad idea: selecting a subsystem should only be done from
a platform, otherwise we run into circular dependencies. The same driver
also selects 'GPIOLIB' and 'I2C', which has a similar effect.

This turns all three into 'depends on', as it should be.

Finally, we can limit the build to x86, unless we are compile testing.

First patch:
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Fix for first patch (squashed):
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:13 +01:00
Arvind Yadav
b6678050a1 mfd: tc6393xb: Handle return value of clk_prepare_enable
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Jan Kiszka
842086d2b5 mfd: intel_quark_i2c_gpio: Add support for SIMATIC IOT2000 platform
The SIMATIC IOT2020 and IOT2040 are derived from the Galileo Gen2 board
and share its I2C frequency.

Signed-off-by: Sascha Weisenberger <sascha.weisenberger@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Jan Kiszka
b518d4adb8 mfd: intel_quark_i2c_gpio: Use dmi_system_id table for retrieving frequency
Avoids reimplementation of DMI matching in intel_quark_i2c_setup.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
9bf2db7834 mfd: motorola-cpcap: Use devm_of_platform_populate()
Usage of  devm_of_platform_populate() simplify driver code
by allowing to delete cpcap_remove().

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
66002163f0 mfd: smsc-ece: Use devm_of_platform_populate()
Use devm_of_platform_populate() to be sure that of_platform_depopulate
is called when removing the driver.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
6f00f8c863 mfd: qcom-spmi-pmic: Use devm_of_platform_populate()
Usage of  devm_of_platform_populate() simplify driver code
by allowing to delete pmic_spmi_remove().

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
124e9deb1c mfd: palmas: Use devm_of_platform_populate()
Use devm_of_platform_populate() to be sure that of_platform_depopulate
is called when removing the driver.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
11ee55d94e mfd: exynos: Use devm_of_platform_populate()
Use devm_of_platform_populate() to be sure that of_platform_depopulate
is called when removing the driver.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
a55196eff6 mfd: fsl-imx25: Use devm_of_platform_populate()
Use devm_of_platform_populate() to be sure that of_platform_depopulate
is called when removing the driver.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
2eb131efb1 mfd: cros_ec: Use devm_of_platform_populate()
Use devm_of_platform_populate() to be sure that of_platform_depopulate
is called when removing the driver.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
ad56b2a4da mfd: atmel: Use devm_of_platform_populate()
Use devm_of_platform_populate() to be sure that of_platform_depopulate
is called when removing the driver.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Benjamin Gaignard
c42a8edbe9 mfd: stm32-timers: Use devm_of_platform_populate()
Use devm_of_platform_populate() instead of of_platform_populate()
and suppress stm32_timers_remove() which become useless.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Hans de Goede
acebcff9ed mfd: intel_soc_pmic: Select designware i2c-bus driver
The Crystal Cove PMIC provides an ACPI OPRegion handler, which must be
available before other drivers using it are loaded, which is why
INTEL_SOC_PMIC is a bool.

Just having the driver is not enough, the driver for the i2c-bus must
also be built in, to ensure this, this patch adds a select for it.

This fixes errors like these during boot:

mmc0: SDHCI controller on ACPI [80860F14:00] using ADMA
ACPI Error: No handler for Region [REGS] (ffff93543b0cc3a8) [UserDefinedRegion] (20170119/evregion-166)
ACPI Error: Region UserDefinedRegion (ID=143) has no handler (20170119/exfldio-299)
ACPI Error: Method parse/execution failed [\_SB.PCI0.I2C7.PMI5.GET] (Node ffff93543b0cde10), AE_NOT_EXIST (20170119/psparse-543)
ACPI Error: Method parse/execution failed [\_SB.PCI0.SHC1._PS0] (Node ffff93543b0b5cd0), AE_NOT_EXIST (20170119/psparse-543)
acpi 80860F14:02: Failed to change power state to D0

While at it this patch also changes the human readable name of the Kconfig
option to make clear the INTEL_SOC_PMIC option selects support for the
Intel Crystal Cove PMIC and documents why this is a bool.

[The above patch caused a build error on some archetectures]

From: Arnd Bergmann <arnd@arndb.de>

I ran into a build error on ARM with a platform that has a non-standard
clk implementation:

drivers/clk/clk.o: In function `clk_disable':
clk.c:(.text.clk_disable+0x0): multiple definition of `clk_disable'
arch/arm/mach-omap1/clock.o:clock.c:(.text.clk_disable+0x0): first defined here
drivers/clk/clk.o: In function `clk_enable':
clk.c:(.text.clk_enable+0x0): multiple definition of `clk_enable'
arch/arm/mach-omap1/clock.o:clock.c:(.text.clk_enable+0x0): first defined here

The problem is a device driver that uses 'select COMMON_CLK', which is
generally a bad idea: selecting a subsystem should only be done from
a platform, otherwise we run into circular dependencies. The same driver
also selects 'GPIOLIB' and 'I2C', which has a similar effect.

This turns all three into 'depends on', as it should be.

Finally, we can limit the build to x86, unless we are compile testing.

First patch:
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Fix for first patch (squashed):
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Steve Twiss
340267640d MAINTAINERS: da9062/61 updates to the Dialog Semiconductor search terms
Additions to search terms for files supported by Dialog Semiconductor.
This update will allow Dialog support to follow files for device tree
bindings (onkey, thermal and watchdog) and source code for chip thermal
monitoring drivers.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:12 +01:00
Tobias Klauser
54698c2d0a mfd: fsl-imx25-tsadc: Constify irq_domain_ops
struct irq_domain_ops is not modified, so it can be made const.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Uwe Kleine-König
4858573909 mfd: twl4030-irq: Log an error in twl4030_sih_setup if the module cannot be found
As silently failing isn't that nice, emit an error message at a place
that was silent on failure up to now.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Charles Keepax
7a456cba37 mfd: arizona: Update GPIO binding for newly supported specifiers
Link to the generic GPIO specifier bindings now that the second cell of
the binding has some support in the driver.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Gustavo A. R. Silva
7b55033fbe mfd: wm831x-spi: Add NULL check before pointer dereference
Add NULL check before dereferencing pointer of_id in order to avoid
a potential NULL pointer dereference.

Addresses-Coverity-ID: 1408830
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Gustavo A. R. Silva
800e54558b mfd: wm831x-i2c: Add NULL check before pointer dereference
Add NULL check before dereferencing pointer of_id in order to avoid
a potential NULL pointer dereference.

Addresses-Coverity-ID: 1408829
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Steven Feng
87d284443d mfd: rtsx: Do retry when DMA transfer error
The request should be resent when DMA transfer error occurred.
For rts5227, the clock rate needs to be reduced when error occurred.

Signed-off-by: Steven Feng <steven_feng@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Icenowy Zheng
9b79ff104f mfd: axp20x: Add axp20x-regulator cell for AXP803
As axp20x-regulator now supports AXP803, add a cell for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Stefan Agner
ecca790a1a mfd: rn5t618: Unregister restart handler on remove
Remove the restart handler registered in probe on device remove.

Fixes: a370f60a58 ("mfd: rn5t618: Register restart handler")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Charles Keepax
dcb0574b4b mfd: wm831x: Remove redundant !pdata checks
Since a copy of the pdata was added into the core struct in
commit f6dd8449cd ("mfd: wm831x: Add basic device tree binding")
the pdata pointer in probe can no longer be NULL. As such remove
the redundant checks for this case.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Linus Walleij
6ae0cc90d9 mfd: ipaq-micro: Dump debugging hexdumps
These hexdumps get printed no matter if CONFIG_DEBUG is set or
not. Just get rid of them.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
Andy Shevchenko
b418bbff36 mfd: intel-lpss: Add Intel Cannonlake PCI IDs
Intel Cannonlake PCH has the same LPSS than Intel Kabylake. Add the new IDs
to the list of supported devices.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-07-06 08:29:11 +01:00
David Howells
cdf01226b2 VFS: Provide empty name qstr
Provide an empty name (ie. "") qstr for general use.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-07-06 03:27:09 -04:00
David Howells
ee416bcdba VFS: Make get_filesystem() return the affected filesystem
Make get_filesystem() return a pointer to the filesystem on which it just
got a ref.

Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-07-06 03:27:09 -04:00
David Howells
dd111b31e9 VFS: Clean up whitespace in fs/namespace.c and fs/super.c
Clean up line terminal whitespace in fs/namespace.c and fs/super.c.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-07-06 03:27:09 -04:00
David Howells
f351574172 Provide a function to create a NUL-terminated string from unterminated data
Provide a function, kmemdup_nul(), that will create a NUL-terminated string
from an unterminated character array where the length is known in advance.

This is better than kstrndup() in situations where we already know the
string length as the strnlen() in kstrndup() is superfluous.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-07-06 03:27:09 -04:00
Joe Perches
6ede2b7df9 ALSA: opl4: Move inline before return type
Make the code like the rest of the kernel.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-07-06 09:24:17 +02:00
Jerome Brunet
d396b20a1e pwm: meson: Add compatible for the gxbb ao PWMs
On the gxbb (and gxl) family, the PWMs of the AO domain require a
specific compatible because the possible input clocks are different
from the EE PWMs input clocks.

Since the number of possible input clocks is also different, the
'num_parents' field is added to all the Meson PWM data.

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-07-06 09:05:22 +02:00
Alexandre Belloni
a054c4d684 pwm: sun4i: Drop legacy callbacks
Remove the legacy callbacks .enable(), .disable(), .set_polarity() and
.config().

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-07-06 09:05:21 +02:00
Alexandre Belloni
c32c5c50d4 pwm: sun4i: Switch to atomic PWM
Switch the driver to atomic PWM. This makes it easier to wait a proper
amount of time when changing the duty cycle before disabling the channel
(main use case is switching the duty cycle to 0 before disabling).

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-07-06 09:05:21 +02:00
Alexandre Belloni
93e0dfb2c5 pwm: sun4i: Improve hardware read out
Implement .get_state instead of only reading the polarity at probe time.
This allows to get the proper state, period and duty cycle.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-07-06 09:05:17 +02:00
Sagi Grimberg
842594c877 nvme-rdma: unconditionally recycle the request mr
When our RDMA queue-pair is torn down with high load
of I/O traffic, we have no way of knowing if the
memory region was actually registered by the reg_mr
work request as it completion flushes with error (hw
might have done it or not).

So in order to not deal with all this uncertanty, we
simply recycle the MR in reinit_request.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:49:43 +03:00
Sagi Grimberg
d09f2b45f3 nvme: split nvme_uninit_ctrl into stop and uninit
Usually before we teardown the controller we want to:
1. complete/cancel any ctrl inflight works
2. remove ctrl namespaces (only for removal though, resets
   shouldn't remove any namespaces).

but we do not want to destroy the controller device as
we might use it for logging during the teardown stage.

This patch adds nvme_start_ctrl() which queues inflight
controller works (aen, ns scan, queue start and keep-alive
if kato is set) and nvme_stop_ctrl() which cancels the works
namespace removal is left to the callers to handle.

Move nvme_uninit_ctrl after we are done with the
controller device.

Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:49:42 +03:00
Sagi Grimberg
9b3e990584 virtio_blk: quiesce/unquiesce live IO when entering PM states
Without it its not guaranteed that no .queue_rq is inflight.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: virtio-dev@lists.oasis-open.org
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:49:34 +03:00
Sagi Grimberg
436c15ab65 mtip32xx: quiesce request queues to make sure no submissions are inflight
Unlike blk_mq_stop_hw_queues, blk_mq_quiesce_queue respects the
submission path rcu grace. quiesce the queue before iterating
on live tags, or performing device io quiescing.

While were at it, verify that the request started in mtip_abort_cmd
amd mtip_queue_cmd tag iteration calls.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:49:18 +03:00
Sagi Grimberg
b52c2e9254 nbd: quiesce request queues to make sure no submissions are inflight
Unlike blk_mq_stop_hw_queues, blk_mq_quiesce_queue respects the
submission path rcu grace. quiesce the queue before iterating
on live tags.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:49:05 +03:00
Sagi Grimberg
8d7b8fafad nvme: kick requeue list when requeueing a request instead of when starting the queues
When we requeue a request, we can always insert the request
back to the scheduler instead of doing it when restarting
the queues and kicking the requeue work, so get rid of
the requeue kick in nvme (core and drivers).

Also, now there is no need start hw queues in nvme_kill_queues
We don't stop the hw queues anymore, so no need to
start them.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:48:59 +03:00
Sagi Grimberg
c81545f991 nvme-pci: quiesce/unquiesce admin_q instead of start/stop its hw queues
unlike blk_mq_stop_hw_queues and blk_mq_start_stopped_hw_queues
quiescing/unquiescing respects the submission path rcu grace.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:48:47 +03:00
Sagi Grimberg
c1c0ffff3a nvme-loop: quiesce/unquiesce admin_q instead of start/stop its hw queues
unlike blk_mq_stop_hw_queues and blk_mq_start_stopped_hw_queues
quiescing/unquiescing respects the submission path rcu grace.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:48:43 +03:00
Sagi Grimberg
f9c5af5f8f nvme-fc: quiesce/unquiesce admin_q instead of start/stop its hw queues
unlike blk_mq_stop_hw_queues and blk_mq_start_stopped_hw_queues
quiescing/unquiescing respects the submission path rcu grace.

Also, make sure to unquiesce before cleanup the admin queue.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-By: James Smart <james.smart@broadcom.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:48:31 +03:00
Sagi Grimberg
fb05133972 nvme-rdma: quiesce/unquiesce admin_q instead of start/stop its hw queues
unlike blk_mq_stop_hw_queues and blk_mq_start_stopped_hw_queues
quiescing/unquiescing respects the submission path rcu grace.
Also make sure to kick the requeue list when appropriate.

Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2017-07-06 09:47:58 +03:00
Marta Rybczynska
5e599d73c1 nvme-rdma: remove race conditions from IB signalling
This patch improves the way the RDMA IB signalling is done by using atomic
operations for the signalling variable. This avoids race conditions on
sig_count.

The signalling interval changes slightly and is now the largest power of
two not larger than queue depth / 2.

ilog() usage idea by Bart Van Assche.

Signed-off-by: Marta Rybczynska <marta.rybczynska@kalray.eu>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
2017-07-06 09:46:58 +03:00
Arvind Yadav
c034a6fda0 pwm: hibvt: Constify hibvt_pwm_ops
File size before:
   text	   data	    bss	    dec	    hex	filename
   1510	    296	      0	   1806	    70e	drivers/pwm/pwm-hibvt.o
File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   1606	    192	      0	   1798	    706	drivers/pwm/pwm-hibvt.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-07-06 08:38:53 +02:00
Jerome Brunet
93c292ef3c pwm: Silently error out on EPROBE_DEFER
In of_pwm_get(), if we fail to get the PWM chip due to probe deferal, we
shouldn't print an error message. Just be silent in this case.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-07-06 08:29:16 +02:00