/**
* devprop_gpiochip_set_names - Set GPIO line names using device properties
* @chip: GPIO chip whose lines should be named, if possible
- * @fwnode: Property Node containing the gpio-line-names property
*
* Looks for device property "gpio-line-names" and if it exists assigns
* GPIO line names for the chip. The memory allocated for the assigned
- * names belong to the underlying firmware node and should not be released
+ * names belong to the underlying software node and should not be released
* by the caller.
*/
-void devprop_gpiochip_set_names(struct gpio_chip *chip,
- const struct fwnode_handle *fwnode)
+int devprop_gpiochip_set_names(struct gpio_chip *chip)
{
struct gpio_device *gdev = chip->gpiodev;
+ struct device *dev = chip->parent;
const char **names;
int ret, i;
int count;
- count = fwnode_property_read_string_array(fwnode, "gpio-line-names",
- NULL, 0);
+ count = device_property_string_array_count(dev, "gpio-line-names");
if (count < 0)
- return;
+ return 0;
if (count > gdev->ngpio) {
dev_warn(&gdev->dev, "gpio-line-names is length %d but should be at most length %d",
names = kcalloc(count, sizeof(*names), GFP_KERNEL);
if (!names)
- return;
+ return -ENOMEM;
- ret = fwnode_property_read_string_array(fwnode, "gpio-line-names",
+ ret = device_property_read_string_array(dev, "gpio-line-names",
names, count);
if (ret < 0) {
dev_warn(&gdev->dev, "failed to read GPIO line names\n");
kfree(names);
- return;
+ return ret;
}
for (i = 0; i < count; i++)
gdev->descs[i].name = names[i];
kfree(names);
+
+ return 0;
}
EXPORT_SYMBOL_GPL(devprop_gpiochip_set_names);
if (ret)
return ret;
- /* If the chip defines names itself, these take precedence */
- if (!chip->names)
- devprop_gpiochip_set_names(chip,
- of_fwnode_handle(chip->of_node));
-
of_node_get(chip->of_node);
ret = of_gpiochip_scan_gpios(chip);
struct gpio_device *gdev = gc->gpiodev;
int i;
- if (!gc->names)
- return 0;
-
/* First check all names if they are unique */
for (i = 0; i != gc->ngpio; ++i) {
struct gpio_desc *gpio;
INIT_LIST_HEAD(&gdev->pin_ranges);
#endif
- ret = gpiochip_set_desc_names(gc);
+ if (gc->names)
+ ret = gpiochip_set_desc_names(gc);
+ else
+ ret = devprop_gpiochip_set_names(gc);
if (ret)
goto err_remove_from_list;
enum gpiod_flags dflags);
void gpiochip_free_own_desc(struct gpio_desc *desc);
-void devprop_gpiochip_set_names(struct gpio_chip *gc,
- const struct fwnode_handle *fwnode);
+int devprop_gpiochip_set_names(struct gpio_chip *gc);
#ifdef CONFIG_GPIOLIB