diff options
Diffstat (limited to 'drivers/gpio/devres.c')
| -rw-r--r-- | drivers/gpio/devres.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c index b760cbbb41d82..7031eea165c98 100644 --- a/drivers/gpio/devres.c +++ b/drivers/gpio/devres.c @@ -11,7 +11,7 @@ * * This file is based on kernel/irq/devres.c * - * Copyright (c) 2011 John Crispin <blogic@openwrt.org> + * Copyright (c) 2011 John Crispin <john@phrozen.org> */ #include <linux/module.h> @@ -21,6 +21,8 @@ #include <linux/device.h> #include <linux/gfp.h> +#include "gpiolib.h" + static void devm_gpiod_release(struct device *dev, void *res) { struct gpio_desc **desc = res; @@ -123,19 +125,26 @@ struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev, EXPORT_SYMBOL(devm_gpiod_get_index); /** - * devm_get_gpiod_from_child - get a GPIO descriptor from a device's child node + * devm_fwnode_get_index_gpiod_from_child - get a GPIO descriptor from a + * device's child node * @dev: GPIO consumer * @con_id: function within the GPIO consumer + * @index: index of the GPIO to obtain in the consumer * @child: firmware node (child of @dev) + * @flags: GPIO initialization flags * * GPIO descriptors returned from this function are automatically disposed on * driver detach. + * + * On successfull request the GPIO pin is configured in accordance with + * provided @flags. */ -struct gpio_desc *devm_get_gpiod_from_child(struct device *dev, - const char *con_id, - struct fwnode_handle *child) +struct gpio_desc *devm_fwnode_get_index_gpiod_from_child(struct device *dev, + const char *con_id, int index, + struct fwnode_handle *child, + enum gpiod_flags flags, + const char *label) { - static const char * const suffixes[] = { "gpios", "gpio" }; char prop_name[32]; /* 32 is max size of property name */ struct gpio_desc **dr; struct gpio_desc *desc; @@ -146,15 +155,16 @@ struct gpio_desc *devm_get_gpiod_from_child(struct device *dev, if (!dr) return ERR_PTR(-ENOMEM); - for (i = 0; i < ARRAY_SIZE(suffixes); i++) { + for (i = 0; i < ARRAY_SIZE(gpio_suffixes); i++) { if (con_id) snprintf(prop_name, sizeof(prop_name), "%s-%s", - con_id, suffixes[i]); + con_id, gpio_suffixes[i]); else snprintf(prop_name, sizeof(prop_name), "%s", - suffixes[i]); + gpio_suffixes[i]); - desc = fwnode_get_named_gpiod(child, prop_name); + desc = fwnode_get_named_gpiod(child, prop_name, index, flags, + label); if (!IS_ERR(desc) || (PTR_ERR(desc) != -ENOENT)) break; } @@ -168,7 +178,7 @@ struct gpio_desc *devm_get_gpiod_from_child(struct device *dev, return desc; } -EXPORT_SYMBOL(devm_get_gpiod_from_child); +EXPORT_SYMBOL(devm_fwnode_get_index_gpiod_from_child); /** * devm_gpiod_get_index_optional - Resource-managed gpiod_get_index_optional() |