| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
- Clean-up leaky resources; pwm_bl
- Simplify Device Tree initialisation; lp855x_bl
- Add Regulator support; lp855x
- Remove Bryan from the Maintainer list -- new baby, no time :)
* tag 'backlight-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
MAINTAINERS: Remove my name from Backlight subsystem
backlight: lp855x: Add supply regulator to lp855x
backlight: lp855x: Refactor DT parsing code
backlight: pwm: Clean-up pwm requested using legacy API
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Signed-off-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch adds a supply regulator to the lp855x platform data to facilitate
powering on/off the 3V rail attached to the controller.
Cc: Stéphane Marchesin <marcheu@chromium.org>
Cc: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Milo Kim <milo.kim@ti.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch refactors the dt parsing code to avoid setting platform_data,
instead just setting lp->pdata directly. This facilitates easier
probe deferral since the current scheme would require us to clear out
dev->platform_data before deferring.
Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Milo Kim <milo.kim@ti.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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If PWM device is requested by means of legacy API pwm_request(), its
resources are not freed on module unbind, which may cause an oops on
access, e.g. by reading /sys/kernel/debug/pwm.
Reported-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control changes from Linus Walleij:
"Here is a stash of pin control changes I have collected for the v3.19
series. Mainly new hardware support, with Intels new embedded SoC as
the especially interesting thing standing out, fully using the
subsystem.
- Force conversion of the ux500 pin control device trees and parsers
to use the generic pin control bindings.
- New driver and device tree bindings for the Qualcomm PMIC MPP pin
controller and GPIO.
- Some ACPI infrastructure for pin controllers.
- New driver for the Intel CherryView/Braswell pin controller, the
first Intel pin controller to fully take advantage of the pin
control subsystem.
- Support the Freescale i.MX VF610 variant.
- Support the sunxi A80 variant.
- Support the Samsung Exynos 4415 and Exynos 7 variants.
- Split out Intel pin controllers to their own subdirectory.
- A large slew of rockchip pin control updates, including
suspend/resume support.
- A large slew of Samsung Exynos pin controller updates.
- Various minor updates and fixes"
* tag 'pinctrl-v3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (49 commits)
pinctrl: at91: enhance (debugfs) at91_gpio_dbg_show
pinctrl: meson: add device tree bindings documentation
gpio: tz1090: Fix error handling of irq_of_parse_and_map
pinctrl: tz1090-pinctrl.txt: Fix typo in binding
pinctrl: pinconf-generic: Declare dt_params/conf_items const
pinctrl: exynos: Add support for Exynos4415
pinctrl: exynos: Add initial driver data for Exynos7
pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts
pinctrl: exynos: Consolidate irq domain callbacks
pinctrl: exynos: Generalize the eint16_31 demux code
pinctrl: samsung: Separate per-bank init and runtime data
pinctrl: samsung: Constify samsung_pin_ctrl struct
pinctrl: samsung: Constify samsung_pin_bank_type struct
pinctrl: samsung: Drop unused label field in samsung_pin_ctrl struct
pinctrl: samsung: Make samsung_pinctrl_get_soc_data use ERR_PTR()
pinctrl: Add Intel Cherryview/Braswell pin controller support
gpio / ACPI: Add knowledge about pin controllers to acpi_get_gpiod()
pinctrl: Fix path error in documentation
pinctrl: rockchip: save and restore gpio6_c6 pinmux in suspend/resume
pinctrl: rockchip: add suspend/resume functions
...
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When a pin is configured as GPIO, print also direction (input or output).
Signed-off-by: Matthieu Crapet <mcrapet@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add device tree bindings documentation for Amlogic Meson pin and GPIO
controller.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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irq_of_parse_and_map() returns 0 on error, so testing for negative
result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Fix a typo, s/which which/which/ in the img,tz1090-pinctrl.txt binding.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-pinctrl into devel
Samsung pinctrl patches for v3.19
1) pinctrl-samsung data structure clean-up
8100cf4 pinctrl: samsung: Separate per-bank init and runtime data
1bf00d7 pinctrl: samsung: Constify samsung_pin_ctrl struct
94ce944 pinctrl: samsung: Constify samsung_pin_bank_type struct
e06deff pinctrl: samsung: Drop unused label field in samsung_pin_ctrl struct
8799327 pinctrl: samsung: Make samsung_pinctrl_get_soc_data use ERR_PTR()
2) pinctrl-samsung Exynos7 support
50cea0c pinctrl: exynos: Add initial driver data for Exynos7
14c255d pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts
6f5e41b pinctrl: exynos: Consolidate irq domain callbacks
0d3d30d pinctrl: exynos: Generalize the eint16_31 demux code
3) pinctrl-samsung Exynos4415 support
2891ba2 pinctrl: exynos: Add support for Exynos4415
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The pin controllers of Exynos4415 are similar to Exynos4412, but certain
differences cause the need to create separate driver data for it. This
patch adds pin controller and bank descriptor arrays to the driver to
support the new SoC.
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[cw00.choi: Rebase it on mainline kernel]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
[tomasz.figa@gmail.com: Resolved merge with earlier clean-up series.]
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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This patch adds initial driver data for Exynos7 pinctrl support.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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Exynos7 uses different offsets for wakeup interrupt configuration registers.
So a new irq_chip instance for Exynos7 wakeup interrupts is added. The irq_chip
selection is now based on the wakeup interrupt controller compatible string.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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Adding a irq_chip field to the samsung_pin_bank struct helps in
consolidating the irq domain callbacks for external gpio and wakeup
interrupt controllers. The exynos_wkup_irqd_ops and exynos_gpio_irqd_ops
have now been merged into a single exynos_eint_irqd_ops.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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The function exynos_irq_demux_eint16_31 uses pre-defined offsets for external
interrupt pending status and mask registers. So this function is not extensible
for Exynos7 SoC which has these registers at different offsets. Generalize
the exynos_irq_demux_eint16_31 function by using the pending/mask register
offset values from the exynos_irq_chip structure. This is done by adding a
irq_chip field to the samsung_pin_bank struct.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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Currently the driver mixes constant init data with runtime data, which
is far from being elegant and can invite potential hard to track issues.
This patch intends to solve this by introducing a new
samsung_pin_bank_data structure to hold only constant data known at
compile time, which can be copied to main samsung_pin_bank struct used
at runtime.
In addition, thanks to this change, all per-bank initdata can be marked
with const and __initconst keywords and dropped after init completes.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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In order to separate initialization constants from runtime data, this
patch modifies the driver to store only constant data in
samsung_pin_ctrl struct and copy data required at runtime to
samsung_pinctrl_drv_data struct. This makes it possible to mark all
existing instances of samsung_pin_ctrl struct as const and __initconst.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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This structure is not intended to be modified at runtime and functions
as constant data shared between multiple pin banks. This patch makes all
instances of it constant across the driver.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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There is no code using it and in fact there are pin controller variants
that do not even have this field initialized in their init data. This
patch removes it completely.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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Currently the function returns a valid pointer on success and NULL on
error, so exact error code is lost. This patch changes return convention
of the function to use ERR_PTR() on error instead.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
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This driver supports the pin/GPIO controllers found in newer Intel SoCs
like Cherryview and Braswell. The driver provides full GPIO support and
minimal set of pin controlling funtionality.
The driver is based on the original Cherryview GPIO driver authored by Ning
Li and Alan Cox.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The GPIO resources (GpioIo/GpioInt) used in ACPI contain a GPIO number
which is relative to the hardware GPIO controller. Typically this number
can be translated directly to Linux GPIO number because the mapping is
pretty much 1:1.
However, when the GPIO driver is using pins exported by a pin controller
driver via set of GPIO ranges, the mapping might not be 1:1 anymore and
direct translation does not work.
In such cases we need to translate the ACPI GPIO number to be suitable for
the GPIO controller driver in question by checking all the pin controller
GPIO ranges under the given device and using those to get the proper GPIO
number.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Fix pinconfig include file path.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into devel
Rockchip-pinctrl fixes from Doug Anderson and suspend-specific
functions from Chris Zhong
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Save and restore the gpio6_c6 pinmux setting, since Maskrom of RK3288
would modify it to sdmmc0_det, so it need to be restored to the correct
setting after resume from Maskrom.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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support suspend/resume of pinctrl, it allows handling sleep mode
for hogged pins in pinctrl
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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There were a few instances where the rockchip pinctrl driver would do
read-modify-write with no spinlock. Add a spinlock for these cases.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Just like in (529301c pinctrl: samsung: Parse pin groups before
calling pinctrl_register()), Rockchip also needs to parse pin groups
earlier to make hogs work.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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pin_config_set()
The Rockchip pinctrl driver was calling
rockchip_gpio_direction_output() in the pin_config_set() callback.
This was just a shortcut for:
* rockchip_gpio_set()
* pinctrl_gpio_direction_output()
Unfortunately it's not so good to call pinctrl_gpio_direction_output()
from pin_config_set(). Specifically when initting hogs you'll get an
error.
Let's refactor a little so we can call
_rockchip_pmx_gpio_set_direction() directly.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The rockchip pinctrl driver uses irq_gc_set_wake() but doesn't setup
the .wake_enabled member. That means that we can never actually use a
pin for wakeup. When "irq_set_irq_wake()" tries to call through it
will always get a failure from set_irq_wake_real() and will then set
wake_depth to 0. Assuming you can resume you'll later get an error
message about "Unbalanced IRQ x wake disable".
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Sanity check on resource happening with devm_ioremap_resource().
Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The A80 has a rather usual pin controller, the only thing out of the ordinary
being that it has 5 interrupts banks, and that some pins have several options
for the same functions.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The A80 R-PIO controller has one more bank that what we've seen so far, add the
PN pin bank.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The mxs pinctrl driver cannot handle when functions are not grouped by
name (which IMO is a bug). This happens for example if a
imx28-somemachine.dts provides a function that has the same name as a
function defined in imx28.dtsi.
The proper way to fix that would be to check for duplicates in the loops
(which increases parsing time) or parse the groups first and sort the
resulting array.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add MAINTAINERS entry for Intel pin controller drivers. I will be
maintaining them with Heikki, who kindly promised to help me with this.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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We are going to have more pinctrl drivers for Intel hardware so separate
all our pin controller drivers to own directory.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This is the pinctrl, pinmux, pinconf and gpiolib driver for the
Qualcomm MPP sub-function blocks found in the PMIC chips.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This is the pinctrl, pinmux, pinconf and gpiolib driver for the
Qualcomm GPIO sub-function blocks found in the PMIC chips.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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DeviceTree binding documentation for Qualcomm SPMI PMIC MPP
pinctrl drivers.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This introduced the device tree bindings for the GPIO block found
in PMIC's from Qualcomm.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Copy the mach/at91_pio.h header locally and use it for pinctrl-at91.c. This
allows to remove the dependency on mach/at91_pio.h to be able to move at91 to
multiplatform.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Sanity check on resource happening with devm_ioremap_resource().
Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When dumping pinconf information in debugfs, config arguments are only
printed when a unit is present and the argument is != 0. For parameters
like the slew rate, this does not work. The slew rate uses a driver
specific format for the argument, i.e. 0 can be a valid argument and a
unit is not provided for it.
For that reason, add a flag to enable printing the argument instead of
inferring it from the presence of a unit and the value of the argument.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The pinctrl config helpers make a separate copy of the configuration, so
callers must make sure to free any dynamically allocated memory that was
used to store it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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pinctrl-baytrail driver provides a proper ->remove()
method on its platform_driver definition, however there's
no way, currently, to unload the driver due to missing
module_exit(). This patch adds module_exit().
Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add pinmux support for GPIO for Vybrid (vf610) IOMUX controller.
This is needed since direction configuration is not part of the
GPIO module in Vybrid.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This change fixes below sparse error,
drivers/pinctrl/pinctrl-st.c:1515:31: error: incompatible types for operation (>)
drivers/pinctrl/pinctrl-st.c:1515:31: left side has type void [noderef] <asn:2>*irqmux_base
drivers/pinctrl/pinctrl-st.c:1515:31: right side has type int
Cc: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
CC: Linus Walleij <linus.walleij@linaro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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There is a missing MMC/SD pin for MCDATDIR2 which is routed as
alt B, add it to the MMC/SD pin group and functions.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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