diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-11-12 01:19:07 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2022-11-15 13:21:30 +0300 |
| commit | 8eb1f71e7acca4f92cf9cf83030cbb8ec2524025 (patch) | |
| tree | 0e5a9fe0bec2a73d0d948e16e4a312d23502b637 /drivers/gpio/gpiolib-acpi.c | |
| parent | b7452d670fdef8974e18754342fe6f68e20c2567 (diff) | |
| download | linux-8eb1f71e7acca4f92cf9cf83030cbb8ec2524025.tar.xz | |
gpiolib: consolidate GPIO lookups
Ensure that all paths to obtain/look up GPIOD from generic
consumer-visible APIs go through the new gpiod_find_and_request()
helper, so that we can easily extend it with support for new firmware
mechanisms.
The only exception is OF-specific [devm_]gpiod_get_from_of_node() API
that is still being used by a couple of drivers and will be removed as
soon as patches converting them to use generic fwnode/device APIs are
accepted.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib-acpi.c')
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 1d69b707cbb1..c99c94e5483f 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -1025,45 +1025,6 @@ struct gpio_desc *acpi_find_gpio(struct fwnode_handle *fwnode, } /** - * acpi_node_get_gpiod() - get a GPIO descriptor from ACPI resources - * @fwnode: pointer to an ACPI firmware node to get the GPIO information from - * @propname: Property name of the GPIO - * @index: index of GpioIo/GpioInt resource (starting from %0) - * @lflags: bitmask of gpio_lookup_flags GPIO_* values - * @dflags: gpiod initialization flags - * - * If @fwnode is an ACPI device object, call acpi_get_gpiod_by_index() for it. - * Otherwise (i.e. it is a data-only non-device object), use the property-based - * GPIO lookup to get to the GPIO resource with the relevant information and use - * that to obtain the GPIO descriptor to return. - * - * If the GPIO cannot be translated or there is an error an ERR_PTR is - * returned. - */ -struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode, - const char *propname, int index, - unsigned long *lflags, - enum gpiod_flags *dflags) -{ - struct acpi_gpio_info info; - struct acpi_device *adev; - struct gpio_desc *desc; - - adev = to_acpi_device_node(fwnode); - if (adev) - desc = acpi_get_gpiod_by_index(adev, propname, index, &info); - else - desc = acpi_get_gpiod_from_data(fwnode, propname, index, &info); - - if (!IS_ERR(desc)) { - acpi_gpio_update_gpiod_flags(dflags, &info); - acpi_gpio_update_gpiod_lookup_flags(lflags, &info); - } - - return desc; -} - -/** * acpi_dev_gpio_irq_wake_get_by() - Find GpioInt and translate it to Linux IRQ number * @adev: pointer to a ACPI device to get IRQ from * @name: optional name of GpioInt resource |