The current implementation only calls chained_irq_enter() and
chained_irq_exit() if it detects pending interrupts.
```
for (i = 0; i < info->stride; i++) {
uregmap_read(info->map, id_reg + 4 * i, ®);
if (!reg)
continue;
chained_irq_enter(parent_chip, desc);
```
However, in case of GPIO pin configured in level mode and the parent
controller configured in edge mode, GPIO interrupt might be lowered by the
hardware. In the result, if the interrupt is short enough, the parent
interrupt is still pending while the GPIO interrupt is cleared;
chained_irq_enter() never gets called and the system hangs trying to
service the parent interrupt.
Moving chained_irq_enter() and chained_irq_exit() outside the for loop
ensures that they are called even when GPIO interrupt is lowered by the
hardware.
The similar code with chained_irq_enter() / chained_irq_exit() functions
wrapping interrupt checking loop may be found in many other drivers:
```
grep -r -A 10 chained_irq_enter drivers/pinctrl
```
Cc: stable@vger.kernel.org
Signed-off-by: Sergey Matsievskiy <matsievskiysv@gmail.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/20241012105743.12450-2-matsievskiysv@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
'new_map' is allocated using devm_* which takes care of freeing the
allocated data on device removal, call to
.dt_free_map = pinconf_generic_dt_free_map
double frees the map as pinconf_generic_dt_free_map() calls
pinctrl_utils_free_map().
Fix this by using kcalloc() instead of auto-managed devm_kcalloc().
Cc: stable@vger.kernel.org
Fixes: f805e35631 ("pinctrl: nuvoton: Add ma35d1 pinctrl and GPIO driver")
Reported-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/20241010205237.1245318-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
'map' is allocated using devm_* which takes care of freeing the allocated
data, but in error paths there is a call to pinctrl_utils_free_map()
which also does kfree(map) which leads to a double free.
Use kcalloc() instead of devm_kcalloc() as freeing is manually handled.
Fixes: a29d8e93e7 ("pinctrl: sophgo: add support for CV1800B SoC")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/20241010111830.3474719-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fixes a few issues with Intel pin control platform driver:
* fix missing reference counter drop of fwnode on error path
* replace comma by semicolon to follow the kernel style
* add Panther Lake to the list of supported devices
The following is an automated git shortlog grouped by driver:
intel:
- platform: Add Panther Lake to the list of supported
- platform: use semicolon instead of comma in ncommunities assignment
- platform: fix error path in device_for_each_child_node()
-----BEGIN PGP SIGNATURE-----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=h/iS
-----END PGP SIGNATURE-----
Merge tag 'intel-pinctrl-v6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes
intel-pinctrl for v6.12-2
Fixes a few issues with Intel pin control platform driver:
* fix missing reference counter drop of fwnode on error path
* replace comma by semicolon to follow the kernel style
* add Panther Lake to the list of supported devices
The following is an automated git shortlog grouped by driver:
intel:
- platform: Add Panther Lake to the list of supported
- platform: use semicolon instead of comma in ncommunities assignment
- platform: fix error path in device_for_each_child_node()
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Intel Panther Lake is supported by the generic platform driver,
so add it to the list of supported in Kconfig.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
devm_kasprintf() can return a NULL pointer on failure but this returned
value is not checked. Fix this lack and check the returned value.
Found by code review.
Cc: stable@vger.kernel.org
Fixes: 32c170ff15 ("pinctrl: stm32: set default gpio line names using pin names")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://lore.kernel.org/20240906100326.624445-1-make24@iscas.ac.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
devm_kasprintf() can return a NULL pointer on failure but this returned
value is not checked. Fix this lack and check the returned value.
Found by code review.
Cc: stable@vger.kernel.org
Fixes: a0f160ffcb ("pinctrl: add pinctrl/GPIO driver for Apple SoCs")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/20240905020917.356534-1-make24@iscas.ac.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Substitute the comma with a semicolon in the `ncommunities` assignment
for better readability and consistency with common C coding style.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The device_for_each_child_node() loop requires calls to
fwnode_handle_put() upon early returns to decrement the refcount of
the child node and avoid leaking memory if that error path is triggered.
There is one early returns within that loop in
intel_platform_pinctrl_prepare_community(), but fwnode_handle_put() is
missing.
Instead of adding the missing call, the scoped version of the loop can
be used to simplify the code and avoid mistakes in the future if new
early returns are added, as the child node is only used for parsing, and
it is never assigned.
Cc: stable@vger.kernel.org
Fixes: c5860e4a27 ("pinctrl: intel: Add a generic Intel pin control platform driver")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This concludes a long journey towards replacing the old
board files with devictree description on the Cirrus Logic
EP93xx platform.
Nikita Shubin has been working on this for a long time,
for details see the last post on
https://lore.kernel.org/lkml/20240909-ep93xx-v12-0-e86ab2423d4b@maquefel.me/
-----BEGIN PGP SIGNATURE-----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=Y3Cd
-----END PGP SIGNATURE-----
Merge tag 'soc-ep93xx-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC update from Arnd Bergmann:
"Convert ep93xx to devicetree
This concludes a long journey towards replacing the old board files
with devictree description on the Cirrus Logic EP93xx platform.
Nikita Shubin has been working on this for a long time, for details
see the last post on
https://lore.kernel.org/lkml/20240909-ep93xx-v12-0-e86ab2423d4b@maquefel.me/"
* tag 'soc-ep93xx-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits)
dt-bindings: gpio: ep9301: Add missing "#interrupt-cells" to examples
MAINTAINERS: Update EP93XX ARM ARCHITECTURE maintainer
soc: ep93xx: drop reference to removed EP93XX_SOC_COMMON config
net: cirrus: use u8 for addr to calm down sparse
dmaengine: cirrus: use snprintf() to calm down gcc 13.3.0
dmaengine: ep93xx: Fix a NULL vs IS_ERR() check in probe()
pinctrl: ep93xx: Fix raster pins typo
spi: ep93xx: update kerneldoc comments for ep93xx_spi
clk: ep93xx: Fix off by one in ep93xx_div_recalc_rate()
clk: ep93xx: add module license
dmaengine: cirrus: remove platform code
ASoC: cirrus: edb93xx: Delete driver
ARM: ep93xx: soc: drop defines
ARM: ep93xx: delete all boardfiles
ata: pata_ep93xx: remove legacy pinctrl use
pwm: ep93xx: drop legacy pinctrl
ARM: ep93xx: DT for the Cirrus ep93xx SoC platforms
ARM: dts: ep93xx: Add EDB9302 DT
ARM: dts: ep93xx: add ts7250 board
ARM: dts: add Cirrus EP93XX SoC .dtsi
...
Core changes:
- Add support for "input-schmitt-microvolt" property, as used in the
Sophgo SoC.
New drivers:
- Mobileye EyeQ5 pin controller, I think this is an automotive SoC.
- Rockchip rk3576 pin control support.
- Sophgo CV1800 series pin controllers: CV1800B, CV1812H and SG2000.
Improvements:
- Gradual improvements to Renesas, Samsung, Qualcomm, Nuvoton
and a few other drivers.
-----BEGIN PGP SIGNATURE-----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=7uZC
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"Core changes:
- Add support for "input-schmitt-microvolt" property, as used in the
Sophgo SoC
New drivers:
- Mobileye EyeQ5 pin controller, I think this is an automotive SoC
- Rockchip rk3576 pin control support
- Sophgo CV1800 series pin controllers: CV1800B, CV1812H and SG2000
Improvements:
- Gradual improvements to Renesas, Samsung, Qualcomm, Nuvoton and a
few other drivers"
* tag 'pinctrl-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (67 commits)
pinctrl: intel: Constify struct intel_pinctrl parameter
pinctrl: Remove redundant null pointer checks in pinctrl_remove_device_debugfs()
pinctrl: baytrail: Drop duplicate return statement
pinctrl: intel: Inline intel_gpio_community_irq_handler()
dt-bindings: pinctrl: qcom: add missing type to GPIO hogs
pinctrl: madera: Simplify with dev_err_probe()
pinctrl: k210: Use devm_clk_get_enabled() helpers
pinctrl: Join split messages and remove double whitespace
pinctrl: renesas: rzg2l: Move pinconf_to_config_argument() call outside of switch cases
pinctrl: renesas: rzg2l: Introduce single macro for digital noise filter configuration
pinctrl: renesas: rzg2l: Replace of_node_to_fwnode() with more suitable API
pinctrl: mvebu: Fix devinit_dove_pinctrl_probe function
pinctrl: sunxi: Use devm_clk_get_enabled() helpers
pinctrl: sophgo: cv18xx: fix missed __iomem type identifier
pinctrl: stmfx: Use string_choices API instead of ternary operator
pinctrl: nomadik: Use kmemdup_array instead of kmemdup for multiple allocation
pinctrl: intel: Introduce for_each_intel_gpio_group() helper et al.
pinctrl: intel: Constify intel_get_community() returned object
pinctrl: intel: Implement high impedance support
pinctrl: intel: Add __intel_gpio_get_direction() helper
...
The size of the mux stride was off by one, which could result in
invalid pin configuration on the device side or invalid state
readings on the software side.
While on it also update the code and:
- Increase the mux stride size to 16
- Align the virtual muxed regmap range to 16
- Start the regmap window at the selector
- Mark reserved registers as not-readable
Fixes: 8670de9fae ("pinctrl: cy8c95x0: Use regmap ranges")
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reported-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/20240902072859.583490-1-patrick.rudolph@9elements.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This includes a new ACPI ID that is added to the Intel Meteor Lake
driver to support recent Intel Arrow Lake hardware.
-----BEGIN PGP SIGNATURE-----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=Mbpf
-----END PGP SIGNATURE-----
Merge tag 'intel-pinctrl-v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes
intel-pinctrl for v6.11-1
This includes a new ACPI ID that is added to the Intel Meteor Lake
driver to support recent Intel Arrow Lake hardware.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add a pin control (only multiplexing) driver for ep93xx SoC so
we can fully convert ep93xx to device tree.
This driver is capable of muxing ep9301/ep9302/ep9307/ep9312/ep9315
variants, this is chosen based on "compatible" in device tree.
Co-developed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Enable High Impedance pin configuration support for Intel pin control
* Miscellaneous small improvements here and there
The following is an automated git shortlog grouped by driver:
baytrail:
- Drop duplicate return statement
intel:
- Constify struct intel_pinctrl parameter
- Inline intel_gpio_community_irq_handler()
- Introduce for_each_intel_gpio_group() helper et al.
- Constify intel_get_community() returned object
- Implement high impedance support
- Add __intel_gpio_get_direction() helper
- Refactor __intel_gpio_set_direction() to be more useful
- Move debounce validation out of the lock
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEhiZOUlnC9oKN3n3AmT3/83c5Sy0FAmbgAl8ACgkQmT3/83c5
Sy3XhQ//WfkhNv73IVvGPlKLI4s6A43xINEZ/8gVNeukaOGIi54xu3wlV5QevDOS
6MacKg0g0ZUo1KQXp86o54LqvCfOLklFzJsiWkYXqqImRvuA+5OuP4fVOv3XV9Ga
i1b07A4vFamHwzUKt5kTYwhPOcqNzwYmPgU3jcArpANFs3lahVA9zCCzyXURTNnQ
UH546mEqDezH2m5WgDHATBakSRJJr9bsVYIwAO/8OOz+V75Spmag0vJgWY/9QQms
3mUoJmTLOQbaDUqVqvTRU0uovgUlYXIOJS2EWLqnFBcK78fPZ1CDw0Vn8P6uo1km
/FGcNmoDyXwW6TmI+CyHgiYIItjSYPE6YpxQZtIiGxA79bZwvBO7QA/7CYPniu/i
WyKiKLUOYnvKTqsr9hKOYvHGV74hjRb0EuycnEyw0SCtsoxWlrNnuP4CG22X9O0+
OvfD3jMAFSAmYooifK0CZyi+IFphFpTUmy+fq+hT6MAH9H3uQ88QWThrw+4hA5O0
rNPtwvL0WoK+4v8twQbOSRVd63J20oMGL7+nGnymnO5EA/XLVIlCSBFQhhNBKC3/
OeWlyP/v+n6KnWNY4Wo9daBgF6Vej0B/9E5Z46mOKIDO5Q9iIzG4bOh/iwv9C/7Q
BCnbOYiXJyLZLOJ7k9AuE0DfeYzIZsNIyDwximc8wus937YE2/g=
=Z/p4
-----END PGP SIGNATURE-----
Merge tag 'intel-pinctrl-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v6.12-1
* Enable High Impedance pin configuration support for Intel pin control
* Miscellaneous small improvements here and there
The following is an automated git shortlog grouped by driver:
baytrail:
- Drop duplicate return statement
intel:
- Constify struct intel_pinctrl parameter
- Inline intel_gpio_community_irq_handler()
- Introduce for_each_intel_gpio_group() helper et al.
- Constify intel_get_community() returned object
- Implement high impedance support
- Add __intel_gpio_get_direction() helper
- Refactor __intel_gpio_set_direction() to be more useful
- Move debounce validation out of the lock
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There are a few functions that do not and should not change
the state of the pin control object. Constify the respective
parameter.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Since the debugfs_create_dir() never returns a null pointer, checking
the return value for a null pointer is redundant, and using IS_ERR is
safe enough.
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Link: https://lore.kernel.org/20240903143812.2005071-1-lizetao1@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
No need to repeat 'return ret;' inside and outside conditional.
Just use one outside conditional for both cases.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Since we have for_each_intel_pad_group() helper, there is
no advantage of having intel_gpio_community_irq_handler().
Inline it into intel_gpio_irq().
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
On X1E80100, GPIO interrupts for wakeup-capable pins have been broken since
the introduction of the pinctrl driver. This prevents keyboard and touchpad
from working on most of the X1E laptops. So far we have worked around this
by manually building a kernel with the "wakeup-parent" removed from the
pinctrl node in the device tree, but we cannot expect all users to do that.
Implement a similar workaround in the driver by clearing the wakeirq_map
for X1E80100. This avoids using the PDC wakeup parent for all GPIOs
and handles the interrupts directly in the pinctrl driver instead.
The PDC driver needs additional changes to support X1E80100 properly.
Adding a workaround separately first allows to land the necessary PDC
changes through the normal release cycle, while still solving the more
critical problem with keyboard and touchpad on the current stable kernel
versions. Bypassing the PDC is enough for now, because we have not yet
enabled the deep idle states where using the PDC becomes necessary.
Cc: stable@vger.kernel.org
Fixes: 05e4941d97 ("pinctrl: qcom: Add X1E80100 pinctrl driver")
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konradybcio@kernel.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/20240830-x1e80100-bypass-pdc-v1-1-d4c00be0c3e3@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Switch to use dev_err_probe() to simplify the error path and
unify a message template.
Using this helper is totally fine even if err is known to never
be -EPROBE_DEFER.
The benefit compared to a normal dev_err() is the standardized format
of the error code, it being emitted symbolically and the fact that
the error code is returned which allows more compact error paths.
Signed-off-by: Yan Zhen <yanzhen@vivo.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/20240829044835.2047794-1-yanzhen@vivo.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The devm_clk_get_enabled() helpers:
- call devm_clk_get()
- call clk_prepare_enable() and register what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code and avoids the calls to clk_disable_unprepare().
Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/20240829064938.20114-1-wangjianzheng@vivo.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Splitting error messages across multiple lines makes it harder to find
them in the kernel sources. Fix this by joining the messages.
Remove double whitespace (end of first line + begin of second line).
Fixes: 1c8e794432 ("pinctrl: improve warning messages")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/c8e3feeedbf42a130936a5afaea0f129bcda51f6.1724938156.git.geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Refactor the `rzg2l_pinctrl_pinconf_set()` function by moving the call to
`arg = pinconf_to_config_argument(_configs[i])` to the beginning of the
loop. Previously, this call was redundantly made in most cases within the
switch statement.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20240829194841.84398-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Support for enabling the digital noise filter, and support for
configuring the noise filter stages (via the FILNUM register) and the
sampling interval (via the FILCLKSEL register) are related: a pin
supports either all or none of them. Hence simplify declaring digital
noise filter support for a pin by using a single feature flag instead of
three separate flags.
This patch removes the PIN_CFG_FILNUM and PIN_CFG_FILCLKSEL configuration
macros and renames PIN_CFG_FILONOFF to PIN_CFG_NF.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20240829194841.84398-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
of_node_to_fwnode() is a IRQ domain specific implementation of
of_fwnode_handle(). Replace the former with more suitable API.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20240822230104.707812-1-andy.shevchenko@gmail.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
When an error occurs during the execution of the function
__devinit_dove_pinctrl_probe, the clk is not properly disabled.
Fix this by calling clk_disable_unprepare before return.
Fixes: ba607b6238 ("pinctrl: mvebu: make pdma clock on dove mandatory")
Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
Link: https://lore.kernel.org/20240829064823.19808-1-wangjianzheng@vivo.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
sunxi sunxi_pinctrl_init_with_variant get, enable clk and
deinit_device disable and unprepare it.
This simplifes the code and avoids the calls to
clk_disable_unprepare().
Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
Link: https://lore.kernel.org/20240829064737.16169-1-wangjianzheng@vivo.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Introduce a helper macro for_each_intel_gpio_group() et al.
With those in place, update the users.
It reduces the C code base as well as shrinks the binary:
add/remove: 0/0 grow/shrink: 4/21 up/down: 39/-621 (-582)
Total: Before=15942, After=15360, chg -3.65%
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There is nothing prevents us from constifying intel_get_community()
returned object. Do it to make code more robust.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Implement high impedance support for Intel pin control hardware.
It allows to set high impedance and check it.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Add __intel_gpio_get_direction() helper which provides all possible
physical states of the pad.
With that done, update current users and make the respective checks
consistent.
While at it, make the style of anonymous enum kernel documentation
consistent.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Refactor __intel_gpio_set_direction() to be more useful, i.e.
1) use one parameter per each direction to support all combinatios;
2) move IO to the only user that needs it.
With that done, update current users and deduplicate existing code.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There is no need to validate debounce value under the lock.
Move it outside.
It also results in a smaller binary:
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-11 (-11)
Total: Before=15374, After=15363, chg -0.07%
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
1. Few cleanups: use more appropriate of_property_present(), use scoped
OF nodes handling and switch to kmemdup_array().
2. Implement configuring pull-up and pull-down via GPIOLIB.
-----BEGIN PGP SIGNATURE-----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=worQ
-----END PGP SIGNATURE-----
Merge tag 'samsung-pinctrl-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel
Samsung pinctrl drivers changes for v6.12
1. Few cleanups: use more appropriate of_property_present(), use scoped
OF nodes handling and switch to kmemdup_array().
2. Implement configuring pull-up and pull-down via GPIOLIB.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Sophgo CV1800 series SoCs share common control logic but have
different register mapping. For maintenance, split the driver
and pin definition of the SoC.
Add base driver for CV1800 series SoC and pin definition of
CV1800B.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Link: https://lore.kernel.org/IA1PR20MB4953B260E04EC53F6A01EB30BBB32@IA1PR20MB4953.namprd20.prod.outlook.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Let the kmemdup_array() take care about multiplication
and possible overflows.
Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/20240823105421.50017-1-shenlichuan@vivo.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Document support for the Renesas RZ/G2M v3.0 (r8a774a3) SoC,
- Miscellaneous fixes and improvements.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCZsb/9AAKCRCKwlD9ZEnx
cE82AQD3RLb5BZyvGoLBWUGf4n/d2xEap5FrLO0R0r8XuiXjFAEAy2Ww6740vqJN
MIsXQFfDKJ8oXeQ+trULiN0OTqXgdA0=
=vzFq
-----END PGP SIGNATURE-----
Merge tag 'renesas-pinctrl-for-v6.12-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v6.12
- Document support for the Renesas RZ/G2M v3.0 (r8a774a3) SoC,
- Miscellaneous fixes and improvements.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.
Signed-off-by: Liao Chen <liaochen4@huawei.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/20240820122604.42736-1-liaochen4@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
