leds: led-class: Add led_module_get() helper
Split out part of of_led_get() into a generic led_module_get() helper
function.
This is a preparation patch for adding a generic (non devicetree specific)
led_get() function.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230120114524.408368-3-hdegoede@redhat.com
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 7391d2c..743d97b 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -215,26 +215,9 @@ static int led_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(leds_class_dev_pm_ops, led_suspend, led_resume);
-/**
- * of_led_get() - request a LED device via the LED framework
- * @np: device node to get the LED device from
- * @index: the index of the LED
- *
- * Returns the LED device parsed from the phandle specified in the "leds"
- * property of a device tree node or a negative error-code on failure.
- */
-struct led_classdev *of_led_get(struct device_node *np, int index)
+static struct led_classdev *led_module_get(struct device *led_dev)
{
- struct device *led_dev;
struct led_classdev *led_cdev;
- struct device_node *led_node;
-
- led_node = of_parse_phandle(np, "leds", index);
- if (!led_node)
- return ERR_PTR(-ENOENT);
-
- led_dev = class_find_device_by_of_node(leds_class, led_node);
- of_node_put(led_node);
if (!led_dev)
return ERR_PTR(-EPROBE_DEFER);
@@ -248,6 +231,29 @@ struct led_classdev *of_led_get(struct device_node *np, int index)
return led_cdev;
}
+
+/**
+ * of_led_get() - request a LED device via the LED framework
+ * @np: device node to get the LED device from
+ * @index: the index of the LED
+ *
+ * Returns the LED device parsed from the phandle specified in the "leds"
+ * property of a device tree node or a negative error-code on failure.
+ */
+struct led_classdev *of_led_get(struct device_node *np, int index)
+{
+ struct device *led_dev;
+ struct device_node *led_node;
+
+ led_node = of_parse_phandle(np, "leds", index);
+ if (!led_node)
+ return ERR_PTR(-ENOENT);
+
+ led_dev = class_find_device_by_of_node(leds_class, led_node);
+ of_node_put(led_node);
+
+ return led_module_get(led_dev);
+}
EXPORT_SYMBOL_GPL(of_led_get);
/**
