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[U-Boot,v2,16/22] LED: add function to retrieve a device's label

Message ID 20160620182722.21075.29554.stgit@obelix.dresden.micronet24.de
State Changes Requested
Delegated to: Simon Glass
Headers show

Commit Message

Benjamin Tietz June 20, 2016, 6:27 p.m. UTC 
From: Benjamin Tietz <benjamin@micronet24.de>

This extends the API of the led-driver to retrieve the label of and led-device.
---
 drivers/led/led-uclass.c |    6 ++++++
 include/led.h            |    8 ++++++++
 2 files changed, 14 insertions(+)
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Patch

diff --git a/drivers/led/led-uclass.c b/drivers/led/led-uclass.c
index 784ac87..f5fbbcb 100644
--- a/drivers/led/led-uclass.c
+++ b/drivers/led/led-uclass.c
@@ -32,6 +32,12 @@  int led_get_by_label(const char *label, struct udevice **devp)
 	return -ENODEV;
 }
 
+const char *led_get_label(struct udevice *dev)
+{
+	struct led_uclass_plat *uc_plat = dev_get_uclass_platdata(dev);
+	return uc_plat->label;
+}
+
 int led_set_on(struct udevice *dev, int on)
 {
 	struct led_ops *ops = led_get_ops(dev);
diff --git a/include/led.h b/include/led.h
index b929d0c..32e0dec 100644
--- a/include/led.h
+++ b/include/led.h
@@ -40,6 +40,14 @@  struct led_ops {
 int led_get_by_label(const char *label, struct udevice **devp);
 
 /**
+ * led_get_label() - get the label of a given led-device
+ *
+ * @dev:	led device
+ * @return the name of the led
+ */
+const char *led_get_label(struct udevice *dev);
+
+/**
  * led_set_on() - set the state of an LED
  *
  * @dev:	LED device to change