Simplify the code in error paths by using the managed variant of the
clock getter that controls the clock state as well.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240819151705.37258-2-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

There are no more any board files that use the platform data for
gpio-davinci. We can remove the header defining it and port the code to
no longer store any context in pdata.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240819151705.37258-1-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Sort the headers in alphabetic order in order to ease
the maintenance for this part.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240902133148.2569486-6-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240902133148.2569486-5-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

We have a temporary variable to keep a pointer to struct device.
Utilise it where it makes sense.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240902133148.2569486-4-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

There is no evidence that the 'dev' member of struct stmpe_gpio
is used, drop it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240902133148.2569486-3-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

First of all, remove duplicate message that platform_get_irq()
does already print. Second, correct the error message when unable
to register a handler, which is broken in two ways:
1) the misleading 'get' vs. 'register';
2) missing '\n' at the end.

(Yes, for the curious ones, the dev_*() cases do not require '\n'
and issue it automatically, but it's better to have them explicit)

Fix all this here.

Fixes: 1882e769 ("gpio: stmpe: Simplify with dev_err_probe()")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240902133148.2569486-2-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Drop kerneldoc description of 'lock' to fix W=1 warning:

  drivers/gpio/gpio-pch.c:101: warning: Excess struct member 'lock' description in 'pch_gpio'
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240902121258.64094-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Use devm_clk_get_enabled() simplify zynq_gpio_probe() and zynq_gpio_remove().
Acked-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Rong Qianfeng <rongqianfeng@vivo.com>
Link: https://lore.kernel.org/r/20240820121651.29706-3-rongqianfeng@vivo.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

The mpc8xxx GPIO can generate an interrupt on state change. This
interrupt can be used to wake up the device from its sleep state if
enabled to do so. Add required support to the driver so that the GPIO
can be used in this way.

In order for the GPIO to actually function in this way, it is necessary
to also set the GPIO bit in the RCPM. This can be done via the device
tree fsl,rcpm-wakeup property.
Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
Link: https://lore.kernel.org/r/20240820143328.1987442-1-martyn.welch@collabora.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Fix the build warning with W=1 flag,
"Excess struct member 'compatible' description in 'syscon_gpio_data' "
by removing the documentation for the non existent member.
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20240902-b4-gpio-fix-v1-1-49a997994fa5@ti.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Use devm_clk_get_enabled() simplify xway_stp_probe().
Signed-off-by: Rong Qianfeng <rongqianfeng@vivo.com>
Link: https://lore.kernel.org/r/20240820121651.29706-2-rongqianfeng@vivo.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

There is no reason to keep deprecated legacy API implementations
in the gpiolib-devres.c. Consolidate devm_gpio_*() with other legacy
APIs. While at it, clean up header inclusion block in gpiolib-devres.c.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240828151357.2677340-1-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

$ scripts/kernel-doc -v -none -Wall drivers/gpio/gpiolib* 2>&1 | grep -w warning | wc -l
67

Fix these by adding Return sections. While at it, make sure all of
Return sections use the same style.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240828164449.2777666-1-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240822223332.705560-1-andy.shevchenko@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
Link: https://lore.kernel.org/r/20240822225818.707550-1-andy.shevchenko@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
Link: https://lore.kernel.org/r/20240822225300.707178-1-andy.shevchenko@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
Link: https://lore.kernel.org/r/20240822224737.706870-1-andy.shevchenko@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
Link: https://lore.kernel.org/r/20240822225629.707365-1-andy.shevchenko@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
Link: https://lore.kernel.org/r/20240822224130.706564-1-andy.shevchenko@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
Link: https://lore.kernel.org/r/20240822223845.706346-1-andy.shevchenko@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Use the IS_ERR_OR_NULL() helper instead of open-coding a
NULL and an error pointer checks to simplify the code and
improve readability.

No functional changes are intended.
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Link: https://lore.kernel.org/r/20240828122039.3697037-1-lihongbo22@huawei.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

rm .*.cmd when calling make clean
Signed-off-by: zhangjiao <zhangjiao2@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20240829062942.11487-1-zhangjiao2@cmss.chinamobile.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

The core schema in dtschema already strictly defines contents of nodes
with "gpio-hog" property (with additionalProperties: false), thus the
only thing device schema should do is: define "type: object" and
required "gpio-hog".  Make the code a bit simpler by removing redundant
parts.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240828-dt-bindings-gpio-hog-v1-3-63b83e47d804@linaro.orgSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

GPIO hog nodes should define type, otherwise "dummy-hog" boolean
properties would be allowed.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240828-dt-bindings-gpio-hog-v1-1-63b83e47d804@linaro.orgSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Besides the fact that (old) drivers use wrong definitions, e.g.,
GPIOF_DIR_IN instead of GPIOF_IN, shrink the legacy definitions
by killing those GPIOF_DIR_* completely.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20240828142554.2424189-3-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Besides the fact that (old) drivers use wrong definitions, e.g.,
GPIOF_INIT_HIGH instead of GPIOF_OUT_INIT_HIGH, shrink the legacy
definitions by killing those GPIOF_INIT_* completely.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20240828142554.2424189-2-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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: Shen Lichuan <shenlichuan@vivo.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240829131051.43200-1-shenlichuan@vivo.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

There are no more board files defining platform data for this driver so
remove the header and support from the driver.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240821121456.19553-4-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Don't use specialized OF accessors if we can avoid it: switch to using
the generic device property helpers.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240821121456.19553-3-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Include mod_devicetable.h for struct of_device_id and its helpers.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240821121456.19553-2-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Put all headers in alphabetical order.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240821121456.19553-1-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Print the error code in the pca953x_write_regs() and pca953x_read_regs()
functions to help debugging.
Suggested-by: Russell King (Oracle) <linux@armlinux.org.uk>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20240821114202.2072220-1-festevam@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Use GPIO_LOOKUP_IDX() macro which provides a compound literal
and can be used with dynamic data.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240820200858.3659995-1-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

There is no need to have and export the count variable for the array
in question. Instead, make it NULL-terminated.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240819142945.327808-6-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

For the sake of unification and easier maintenance replace
swnode_format_propname() call with for_each_gpio_property_name()
for-loop.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240819142945.327808-5-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Instead of the spreading simlar code over the file, introduce a helper.
It also enforces the nargs validation for all GPIO software node APIs.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240819142945.327808-4-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

In one case 'ret' is used in the other 'error'. Make the latter
use the former, i.e. 'ret'.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240819142945.327808-3-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Introduce a helper macro for_each_gpio_property_name().
With that in place, update users. This, in particular,
will help making the following simplifications easier.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240819142945.327808-2-andriy.shevchenko@linux.intel.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Merge tag 'ib-mfd-gpio-pwm-v6.12' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next

Immutable branch between MFD, GPIO and PWM due for the v6.12 merge window