ARM: keystone2: Cleanup PLL init code

[karo-tx-uboot.git] / include / led.h

diff --git a/include/led.h b/include/led.h
index 57c2b4a3777729bb02c4fb93ba47013d82f1ef3b..b929d0ca3c70c880444965d86e7956944c59d2da 100644 (file)
--- a/include/led.h
+++ b/include/led.h
@@ -1,45 +1,51 @@
 /*
- * (C) Copyright 2006
- * Atmel Nordic AB <www.atmel.com>
- * Ulf Samuelsson <ulf@atmel.com>
+ * Copyright (c) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef __LED_H
 #define __LED_H
 
-#ifndef        __ASSEMBLY__
-extern void    LED_init (void);
-extern void    red_LED_on(void);
-extern void    red_LED_off(void);
-extern void    green_LED_on(void);
-extern void    green_LED_off(void);
-extern void    yellow_LED_on(void);
-extern void    yellow_LED_off(void);
-#else
-       .extern LED_init
-       .extern red_LED_on
-       .extern red_LED_off
-       .extern yellow_LED_on
-       .extern yellow_LED_off
-       .extern green_LED_on
-       .extern green_LED_off
-#endif
+/**
+ * struct led_uclass_plat - Platform data the uclass stores about each device
+ *
+ * @label:     LED label
+ */
+struct led_uclass_plat {
+       const char *label;
+};
+
+struct led_ops {
+       /**
+        * set_on() - set the state of an LED
+        *
+        * @dev:        LED device to change
+        * @on:         1 to turn the LED on, 0 to turn it off
+        * @return 0 if OK, -ve on error
+        */
+       int (*set_on)(struct udevice *dev, int on);
+};
+
+#define led_get_ops(dev)       ((struct led_ops *)(dev)->driver->ops)
+
+/**
+ * led_get_by_label() - Find an LED device by label
+ *
+ * @label:     LED label to look up
+ * @devp:      Returns the associated device, if found
+ * @return 0 if found, -ENODEV if not found, other -ve on error
+ */
+int led_get_by_label(const char *label, struct udevice **devp);
+
+/**
+ * led_set_on() - set the state of an LED
+ *
+ * @dev:       LED device to change
+ * @on:                1 to turn the LED on, 0 to turn it off
+ * @return 0 if OK, -ve on error
+ */
+int led_set_on(struct udevice *dev, int on);
+
 #endif