drivers/gpio/gpiolib-devres.c

1 /* SPDX-License-Identifier: GPL-2.0 */
3  * devres.c - managed gpio resources
41 	struct gpio_descs **this = res, **gpios = data;  in devm_gpiod_match_array()  local
43 	return *this == *gpios;  in devm_gpiod_match_array()
47  * devm_gpiod_get - Resource-managed gpiod_get()
65  * devm_gpiod_get_optional - Resource-managed gpiod_get_optional()
83  * devm_gpiod_get_index - Resource-managed gpiod_get_index()
106 	 * For non-exclusive GPIO descriptors, check if this descriptor is  in devm_gpiod_get_index()
122 		return ERR_PTR(-ENOMEM);  in devm_gpiod_get_index()
133  * devm_fwnode_gpiod_get_index - get a GPIO descriptor from a given node
144  * On successful request the GPIO pin is configured in accordance with
159 		return ERR_PTR(-ENOMEM);  in devm_fwnode_gpiod_get_index()
175  * devm_gpiod_get_index_optional - Resource-managed gpiod_get_index_optional()
202  * devm_gpiod_get_array - Resource-managed gpiod_get_array()
221 		return ERR_PTR(-ENOMEM);  in devm_gpiod_get_array()
237  * devm_gpiod_get_array_optional - Resource-managed gpiod_get_array_optional()
262  * devm_gpiod_put - Resource-managed gpiod_put()
278  * devm_gpiod_unhinge - Remove resource management from a gpio descriptor
298 	 * so it is OK if devres_destroy() returns -ENOENT.  in devm_gpiod_unhinge()
300 	if (ret == -ENOENT)  in devm_gpiod_unhinge()
308  * devm_gpiod_put_array - Resource-managed gpiod_put_array()
313  * Normally this function will not be called as the GPIOs will be disposed of
331  *      devm_gpio_request - request a GPIO for a managed device
332  *      @dev: device to request the GPIO for
338  *      gpio_request().  GPIOs requested with this function will be
348 		return -ENOMEM;  in devm_gpio_request()
364  *	devm_gpio_request_one - request a single GPIO with initial setup
365  *	@dev:   device to request for
378 		return -ENOMEM;  in devm_gpio_request_one()
401  * devm_gpiochip_add_data_with_key() - Resource managed gpiochip_add_data_with_key()
404  * @data: driver-private data associated with this chip
406  * @request_key: lockdep class for IRQ request
414  * gc->base is invalid or already associated with a different chip.