08 Jan, 2014
2 commits
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Convert to the safer gpiod_* family of API functions.
Signed-off-by: Heikki Krogerus
Signed-off-by: Mika Westerberg
Tested-by: Stephen Warren
Acked-by: Johannes Berg
Signed-off-by: Linus Walleij -
Commit c67d0f29262b ("ARM: s3c24xx: get rid of custom ")
removed the usage of mach/gpio.h file, but we need to include>
plat/gpio-cfg.h to avoid following build error.Fixes following build error.
drivers/leds/leds-s3c24xx.c: In function ‘s3c24xx_led_probe’:
drivers/leds/leds-s3c24xx.c:100:2: error: implicit declaration of
function ‘s3c_gpio_setpull’ [-Werror=implicit-function-declaration]Signed-off-by: Tushar Behera
Acked-by: Bryan Wu
Signed-off-by: Linus Walleij
02 Jan, 2014
5 commits
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'tb10x_gpio_dt_ids' is always compiled in. Hence the
helper macro is not needed.Signed-off-by: Sachin Kamat
Signed-off-by: Linus Walleij -
Return the appropriate error code instead of hardcoding it.
Signed-off-by: Sachin Kamat
Signed-off-by: Linus Walleij -
Silences the following warning:
why not propagate 'port->irq' from platform_get_irq() instead of (-22)?Signed-off-by: Sachin Kamat
Signed-off-by: Linus Walleij -
Driver core sets it to NULL upon probe failure or release.
Signed-off-by: Sachin Kamat
Signed-off-by: Linus Walleij -
Some GPIO line limits are incorrectly set which, for instance,
does not allow nRTS1 (GPH11) configuration on a S3C2416 chip.Signed-off-by: José Miguel Gonçalves
Reviewed-by: Heiko Stuebner
Acked-by: Kukjin Kim
Signed-off-by: Linus Walleij
24 Dec, 2013
1 commit
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Compilation failed on some platforms due to implicit inclusion of
, make this dependency explicit.Signed-off-by: Linus Walleij
21 Dec, 2013
2 commits
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This isolates the custom S3C64xx GPIO definition table to
as this is
used in a few different places in the kernel, removing the
need to depend on the implicit inclusion of
from and thus getting rid of a few nasty
cross-dependencies.Also delete the CONFIG_SAMSUNG_GPIO_EXTRA stuff. Instead
roof the number of GPIOs for this platform:
First sum up all the GPIO banks from A to Q: 187 GPIOs.
Add the 16 "board GPIOs" and the roof for SAMSUNG_GPIO_EXTRA,
128, so in total maximum 187+16+128 = 331 GPIOs, so let's
take the same roof as for S3C24XX: 512. This way we can do
away with the GPIO calculation macros for GPIO_BOARD_START,
BOARD_NR_GPIOS and the definition of ARCH_NR_GPIOS.Cc: Mark Brown
[on Mini6410 board]
Tested-by: Tomasz Figa
[for changes in mach-s3c64xx]
Acked-by: Tomasz Figa
Tested-by: Mark Brown
Acked-by: Kukjin Kim
Signed-off-by: Linus Walleij -
This isolates the custom S3C24xx GPIO definition table to
as this is
used in a few different places in the kernel, removing the
need to depend on the implicit inclusion of
from and thus getting rid of a few nasty
cross-dependencies.We also delete the nifty CONFIG_S3C24XX_GPIO_EXTRA stuff.
The biggest this can ever be for the S3C24XX is
CONFIG_S3C24XX_GPIO_EXTRA = 128, and then for CPU_S3C2443 or
CPU_S3C2416 32*12 GPIOs are added, so 32*12+128 = 512
is the absolute roof value on this platform. So we set
the size of ARCH_NR_GPIO to this and the GPIOs array will
fit any S3C24XX platform, as per pattern from other archs.ChangeLog v2->v3:
- Move the movement of the S3C64XX gpio.h file out of
this patch and into the follow-up patch where it belongs.
ChangeLog v1->v2:
- Added an #ifdef ARCH_S3C24XX around the header inclusion
in drivers/gpio/gpio-samsung.c as we would otherwise
have colliding definitions when compiling S3C64XX.
- Rename inclusion guard in the header file.Cc: Tomasz Figa
Cc: Sylwester Nawrocki
Cc: Ben Dooks
Cc: linux-samsung-soc@vger.kernel.org
Acked-by: Kukjin Kim
Acked-by: Heiko Stuebner
Tested-by: Heiko Stuebner
Signed-off-by: Linus Walleij
20 Dec, 2013
4 commits
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Fix to return a negative error code from the error handling
case instead of 0.Signed-off-by: Wei Yongjun
Signed-off-by: Linus Walleij -
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.Signed-off-by: Wei Yongjun
Signed-off-by: Linus Walleij -
Add missing .owner of struct gpio_chip. This prevents the
module from being removed from underneath its users.Signed-off-by: Wei Yongjun
Signed-off-by: Linus Walleij -
This patch adds support for the GPIOs found on the SMSC "Super I/
SCH311x.The chip detection and I/O functions are copied from sch311x_wdt.
Signed-off-by: Bruno Randolf
Signed-off-by: Linus Walleij
13 Dec, 2013
3 commits
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Doing this allows drivers to distinguish between a real error case (if
there was an error when we tried to resolve the GPIO) and when the optional
GPIO line was not available.Signed-off-by: Mika Westerberg
Acked-by: Alexandre Courbot
Acked-by: Rafael J. Wysocki
Signed-off-by: Linus Walleij -
This allows the module to be loaded automatically.
Signed-off-by: Stephen Boyd
Signed-off-by: Linus Walleij -
Some devices drivers make use of optional GPIO parameters. For such
drivers, it is important to discriminate between the case where no
GPIO mapping has been defined for the function they are requesting, and
the case where a mapping exists but an error occured while resolving it
or when acquiring the GPIO.This patch changes the family of gpiod_get() functions such that they
will return -ENOENT if and only if no GPIO mapping is defined for the
requested function. Other error codes are used when an actual error
occured during the GPIO resolution.Signed-off-by: Alexandre Courbot
Reviewed-by: Andy Shevchenko
Reviewed-by: Mika Westerberg
Signed-off-by: Linus Walleij
12 Dec, 2013
3 commits
-
GPIO32 is a standard optional extension to the Xtensa architecture
core that provides preconfigured output and input ports for intra
SoC signaling. The GPIO32 option is implemented as 32bit Tensilica
Instruction Extension (TIE) output state called EXPSTATE, and 32bit
input wire called IMPWIRE. This driver treats input and output
states as two distinct devices.v3:
* Use BUG() in xtensa_impwire_set_value() to indicate that
it should never be called (Linus Walleij)
v2:
* Address the comments of Linus Walleij:
- Add a few comments
- Expand commit log message
- Use the BIT() macro for bit offsets
- Rewrite CPENABLE handling as static inlines
- Use device_initcall()
* Depend on !SMP for reason explained in the comments (Marc Gauthier)
* Use XCHAL_CP_ID_XTIOP to enable/disable GPIO32 onlySigned-off-by: Baruch Siach
Signed-off-by: Linus Walleij -
- Removed excess "spi" field from private data.
- Removed excess check for spi_get_drvdata() in remove().
- Removed unneeded message in remove().
- Simplify error path in probe().
- Fixed warnings by scripts/checkfile.pl.Signed-off-by: Alexander Shiyan
Signed-off-by: Linus Walleij -
Commit 20bc4d5d565159eb2b942bf4b7fae86fba94e32c
(gpio: 74x164: Add support for the daisy-chaining) introduce check
for DT for the driver, so driver cannot be used without DT.
There are no in-tree users of this driver, so remove non-DT support
completely.Signed-off-by: Alexander Shiyan
Acked-by: Mark Brown
Signed-off-by: Linus Walleij
11 Dec, 2013
2 commits
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The call to gpiochip_add() is not currently error-checked. Add the
missing checking.Signed-off-by: Stephen Warren
Reviewed-by: Thierry Reding
Reviewed-by: Alexandre Courbot
Signed-off-by: Linus Walleij -
This makes it possible to request the gpio descriptors in
rfkill_gpio driver regardless of the platform.Signed-off-by: Heikki Krogerus
Acked-by: Stephen Warren
Signed-off-by: Linus Walleij
09 Dec, 2013
6 commits
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The patch just accents that @dev could be NULL.
There is no functional change.
Signed-off-by: Andy Shevchenko
Reviewed-by: Mika Westerberg
Signed-off-by: Linus Walleij -
The patch moves description of the fields to the top of struct definition and
converts them to the kernel-doc format.There is no functional change.
Signed-off-by: Andy Shevchenko
Acked-by: Alexandre Courbot
Reviewed-by: Mika Westerberg
Signed-off-by: Linus Walleij -
In several places we are printing messages with prefix based on chip->label.
Introduced macros help us to do this easier and in uniform way.Signed-off-by: Andy Shevchenko
Reviewed-by: Alexandre Courbot
Signed-off-by: Linus Walleij -
This patch includes the following amendments:
1) use "?" as a label when the last one is not defined in gpiod_*;
2) whenever it's possible gpiod_* are used;
3) print a function name, if it's already used in other messages.Additionally it fixes an indentation in few places.
Signed-off-by: Andy Shevchenko
Acked-by: Alexandre Courbot
Reviewed-by: Alexandre Courbot
Reviewed-by: Mika Westerberg
Signed-off-by: Linus Walleij -
Change the format of the platform GPIO lookup tables to make them less
confusing and improve lookup efficiency.The previous format was a single linked-list that required to compare
the device name and function ID of every single GPIO defined for each
lookup. Switch that to a list of per-device tables, so that the lookup
can be done in two steps, omitting the GPIOs that are not relevant for a
particular device.The matching rules are now defined as follows:
- The device name must match *exactly*, and can be NULL for GPIOs not
assigned to a particular device,
- If the function ID in the lookup table is NULL, the con_id argument of
gpiod_get() will not be used for lookup. However, if it is defined, it
must match exactly.
- The index must always match.Signed-off-by: Alexandre Courbot
Acked-by: Mika Westerberg
Reviewed-by: Andy Shevchenko
Signed-off-by: Linus Walleij -
Linux 3.13-rc3
07 Dec, 2013
6 commits
-
…t/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"A regression showed up that there's a large delay when enabling all
events. This was prevalent when FTRACE_SELFTEST was enabled which
enables all events several times, and caused the system bootup to
pause for over a minute.This was tracked down to an addition of a synchronize_sched()
performed when system call tracepoints are unregistered.The synchronize_sched() is needed between the unregistering of the
system call tracepoint and a deletion of a tracing instance buffer.
But placing the synchronize_sched() in the unreg of *every* system
call tracepoint is a bit overboard. A single synchronize_sched()
before the deletion of the instance is sufficient"* tag 'trace-fixes-3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Only run synchronize_sched() at instance deletion time -
Pull aio fix from Benjamin LaHaise:
"AIO fix from Gu Zheng that fixes a GPF that Dave Jones uncovered with
trinity"* git://git.kvack.org/~bcrl/aio-next:
aio: clean up aio ring in the fail path -
Pull SCSI fixes from James Bottomley:
"This is a set of nine fixes (and one author update).The libsas one should fix discovery in eSATA devices, the WRITE_SAME
one is the largest, but it should fix a lot of problems we've been
getting with the emulated RAID devices (they've been effectively lying
about support and then firmware has been choking on the commands).The rest are various crash, hang or warn driver fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] bfa: Fix crash when symb name set for offline vport
[SCSI] enclosure: fix WARN_ON in dual path device removing
[SCSI] pm80xx: Tasklets synchronization fix.
[SCSI] pm80xx: Resetting the phy state.
[SCSI] pm80xx: Fix for direct attached device.
[SCSI] pm80xx: Module author addition
[SCSI] hpsa: return 0 from driver probe function on success, not 1
[SCSI] hpsa: do not discard scsi status on aborted commands
[SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers
[SCSI] libsas: fix usage of ata_tf_to_fis -
Pull IMA fixes from James Morris:
"Here are two more fixes for IMA"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
ima: properly free ima_template_entry structures
ima: Do not free 'entry' before it is initialized -
Pull devicetree fixes from Rob Herring:
- Various DT binding documentation updates
- Add Kumar Gala and remove Stephen Warren as DT binding maintainers* tag 'dt-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt: binding: reword PowerPC 8xxx GPIO documentation
ARM: tegra: delete nvidia,tegra20-spi.txt binding
hwmon: ntc_thermistor: Fix typo (pullup-uV -> pullup-uv)
of: add vendor prefix for GMT
clk: exynos: Fix typos in DT bindings documentation
of: Add vendor prefix for LG Corporation
Documentation: net: fsl-fec.txt: Add phy-supply entry
ARM: dts: doc: Document missing binding for omap5-mpu
dt-bindings: add ARMv8 PMU binding
MAINTAINERS: remove swarren from DT bindings
MAINTAINERS: Add Kumar to Device Tree Binding maintainers group
06 Dec, 2013
6 commits
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Clean up the aio ring file in the fail path of aio_setup_ring
and ioctx_alloc. And maybe it can fix the GPF issue reported by
Dave Jones:
https://lkml.org/lkml/2013/11/25/898Signed-off-by: Gu Zheng
Signed-off-by: Benjamin LaHaise -
…r/linux-integrity into for-linus
-
Pull power management fixes from Rafael Wysocki:
- cpufreq regression fix from Bjørn Mork restoring the pre-3.12
behavior of the framework during system suspend/hibernation to avoid
garbage sysfs files from being left behind in case of a suspend error- PNP regression fix to restore the correct states of devices after
resume from hibernation broken in 3.12. From Dmitry Torokhov.- cpuidle fix to prevent cpuidle device unregistration from crashing
due to a NULL pointer dereference if cpuidle has been disabled from
the kernel command line. From Konrad Rzeszutek Wilk.- intel_idle fix for the C6 state definition on Intel Avoton/Rangeley
processors from Arne Bockholdt.- Power capping framework fix to make the energy_uj sysfs attribute
work in accordance with the documentation. From Srinivas Pandruvada.- epoll fix to make it ignore the EPOLLWAKEUP flag if the kernel has
been compiled with CONFIG_PM_SLEEP unset (in which case that flag
should not have any effect). From Amit Pundir.- cpufreq fix to prevent governor sysfs files from being lost over
system suspend/resume in some (arguably unusual) situations. From
Viresh Kumar.* tag 'pm-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PowerCap: Fix mode for energy counter
PNP: fix restoring devices after hibernation
cpuidle: Check for dev before deregistering it.
epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled
cpufreq: fix garbage kobjects on errors during suspend/resume
cpufreq: suspend governors on system suspend/hibernate
intel_idle: Fixed C6 state on Avoton/Rangeley processors -
* pm-epoll:
epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled* pnp:
PNP: fix restoring devices after hibernation* powercap:
PowerCap: Fix mode for energy counter -
* pm-cpuidle:
cpuidle: Check for dev before deregistering it.
intel_idle: Fixed C6 state on Avoton/Rangeley processors* pm-cpufreq:
cpufreq: fix garbage kobjects on errors during suspend/resume
cpufreq: suspend governors on system suspend/hibernate -
Pull arch/tile ftrace bug fix from Chris Metcalf:
"This fixes a build failure with allyesconfig reported by Fengguang Wu
and fixed by Tony Lu"* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
ftrace: default to tilegx if ARCH=tile is specified
