leds: class: Use firmware nodes for device lookup

Replace the OF based lookup with the fwnode equivalent to get support
for ACPI and software nodes.

Signed-off-by: Alban Bedel <alban.bedel@lht.dlh.de>
Link: https://patch.msgid.link/20260513115853.1584230-1-alban.bedel@lht.dlh.de
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 9e14ae588f780e9ce62de529dfa93eb7c1eac55d..a17db3d6644f5d62a9a4606ff28ea19a9a3190fb 100644 (file)
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -249,32 +249,34 @@ static const struct class leds_class = {
 };
 
 /**
- * of_led_get() - request a LED device via the LED framework
- * @np: device node to get the LED device from
+ * fwnode_led_get() - request a LED device via the LED framework
+ * @fwnode: firmware node to get the LED device from
  * @index: the index of the LED
  * @name: the name of the LED used to map it to its function, if present
  *
  * 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.
  */
-static struct led_classdev *of_led_get(struct device_node *np, int index,
-                                      const char *name)
+static struct led_classdev *fwnode_led_get(struct fwnode_handle *fwnode,
+                                          int index, const char *name)
 {
+       struct fwnode_handle *led_node;
        struct device *led_dev;
-       struct device_node *led_node;
 
        /*
         * For named LEDs, first look up the name in the "led-names" property.
-        * If it cannot be found, then of_parse_phandle() will propagate the error.
+        * If it cannot be found, then fwnode_find_reference() will propagate
+        * the error.
         */
        if (name)
-               index = of_property_match_string(np, "led-names", name);
-       led_node = of_parse_phandle(np, "leds", index);
-       if (!led_node)
-               return ERR_PTR(-ENOENT);
+               index = fwnode_property_match_string(fwnode, "led-names",
+                                                    name);
+       led_node = fwnode_find_reference(fwnode, "leds", index);
+       if (IS_ERR(led_node))
+               return ERR_CAST(led_node);
 
-       led_dev = class_find_device_by_fwnode(&leds_class, of_fwnode_handle(led_node));
-       of_node_put(led_node);
+       led_dev = class_find_device_by_fwnode(&leds_class, led_node);
+       fwnode_handle_put(led_node);
 
        return led_module_get(led_dev);
 }
@@ -332,7 +334,7 @@ struct led_classdev *__must_check devm_of_led_get(struct device *dev,
        if (!dev)
                return ERR_PTR(-EINVAL);
 
-       led = of_led_get(dev->of_node, index, NULL);
+       led = fwnode_led_get(dev_fwnode(dev), index, NULL);
        if (IS_ERR(led))
                return led;
 
@@ -354,7 +356,7 @@ struct led_classdev *led_get(struct device *dev, char *con_id)
        const char *provider = NULL;
        struct device *led_dev;
 
-       led_cdev = of_led_get(dev->of_node, -1, con_id);
+       led_cdev = fwnode_led_get(dev_fwnode(dev), -1, con_id);
        if (!IS_ERR(led_cdev) || PTR_ERR(led_cdev) != -ENOENT)
                return led_cdev;