Lines Matching +full:gpio +full:- +full:line +full:- +full:names

2  * Device property helpers for GPIO chips.
14 #include <linux/gpio/consumer.h>
15 #include <linux/gpio/driver.h>
20  * devprop_gpiochip_set_names - Set GPIO line names using device properties
21  * @chip: GPIO chip whose lines should be named, if possible
22  * @fwnode: Property Node containing the gpio-line-names property
24  * Looks for device property "gpio-line-names" and if it exists assigns
25  * GPIO line names for the chip. The memory allocated for the assigned
26  * names belong to the underlying firmware node and should not be released
32 	struct gpio_device *gdev = chip->gpiodev;  in devprop_gpiochip_set_names()
33 	const char **names;  in devprop_gpiochip_set_names()  local
36 	ret = fwnode_property_read_string_array(fwnode, "gpio-line-names",  in devprop_gpiochip_set_names()
41 	if (ret != gdev->ngpio) {  in devprop_gpiochip_set_names()
42 		dev_warn(&gdev->dev,  in devprop_gpiochip_set_names()
43 			 "names %d do not match number of GPIOs %d\n", ret,  in devprop_gpiochip_set_names()
44 			 gdev->ngpio);  in devprop_gpiochip_set_names()
48 	names = kcalloc(gdev->ngpio, sizeof(*names), GFP_KERNEL);  in devprop_gpiochip_set_names()
49 	if (!names)  in devprop_gpiochip_set_names()
52 	ret = fwnode_property_read_string_array(fwnode, "gpio-line-names",  in devprop_gpiochip_set_names()
53 						names, gdev->ngpio);  in devprop_gpiochip_set_names()
55 		dev_warn(&gdev->dev, "failed to read GPIO line names\n");  in devprop_gpiochip_set_names()
56 		kfree(names);  in devprop_gpiochip_set_names()
60 	for (i = 0; i < gdev->ngpio; i++)  in devprop_gpiochip_set_names()
61 		gdev->descs[i].name = names[i];  in devprop_gpiochip_set_names()
63 	kfree(names);  in devprop_gpiochip_set_names()