drivers/gpio/gpiolib.c

2419 static inline const char *function_name_or_default(const char *con_id)
2421 	return con_id ?: "(default)";
4081 static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
4100 		/* If the lookup entry has a con_id, require exact match */
4101 		if (p->con_id && (!con_id || strcmp(p->con_id, con_id)))
4150 static int platform_gpio_count(struct device *dev, const char *con_id)
4162 			if ((con_id && p->con_id && !strcmp(con_id, p->con_id)) ||
4163 			    (!con_id && !p->con_id))
4176 					      const char *con_id,
4181 	const char *name = function_name_or_default(con_id);
4186 		desc = of_find_gpio(to_of_node(fwnode), con_id, idx, lookupflags);
4189 		desc = acpi_find_gpio(fwnode, con_id, idx, flags, lookupflags);
4192 		desc = swnode_find_gpio(fwnode, con_id, idx, lookupflags);
4200 					 const char *con_id,
4207 	const char *name = function_name_or_default(con_id);
4216 		desc = gpiod_find_by_fwnode(fwnode, consumer, con_id, idx,
4226 			desc = gpiod_find(consumer, con_id, idx, &lookupflags);
4256 	ret = gpiod_configure_flags(desc, con_id, lookupflags, flags);
4271  * @con_id:	function within the GPIO consumer
4290 					 const char *con_id,
4295 	return gpiod_find_and_request(NULL, fwnode, con_id, index, flags, label, false);
4303  * @con_id:	function within the GPIO consumer
4305 int gpiod_count(struct device *dev, const char *con_id)
4311 		count = of_gpio_count(fwnode, con_id);
4313 		count = acpi_gpio_count(fwnode, con_id);
4315 		count = swnode_gpio_count(fwnode, con_id);
4318 		count = platform_gpio_count(dev, con_id);
4327  * @con_id:	function within the GPIO consumer
4330  * Return the GPIO descriptor corresponding to the function con_id of device
4334 struct gpio_desc *__must_check gpiod_get(struct device *dev, const char *con_id,
4337 	return gpiod_get_index(dev, con_id, 0, flags);
4344  * @con_id: function within the GPIO consumer
4352 						  const char *con_id,
4355 	return gpiod_get_index_optional(dev, con_id, 0, flags);
4363  * @con_id:	function within the GPIO consumer
4372 int gpiod_configure_flags(struct gpio_desc *desc, const char *con_id,
4375 	const char *name = function_name_or_default(con_id);
4436  * @con_id:	function within the GPIO consumer
4448 					       const char *con_id,
4454 	const char *label = con_id ?: devname;
4456 	return gpiod_find_and_request(dev, fwnode, con_id, idx, flags, label, true);
4464  * @con_id: function within the GPIO consumer
4473 							const char *con_id,
4479 	desc = gpiod_get_index(dev, con_id, index, flags);
4545  * @con_id:	function within the GPIO consumer
4555 						const char *con_id,
4565 	count = gpiod_count(dev, con_id);
4575 		desc = gpiod_get_index(dev, con_id, descs->ndescs, flags);
4673  * @con_id:	function within the GPIO consumer
4680 							const char *con_id,
4685 	descs = gpiod_get_array(dev, con_id, flags);