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path: root/recipes/linux/linux-2.6.23/mpc8323e-rdb/mpc832x-leds.patch
blob: a4863b8daf9cc537f33dd61cc18e9cb95b9e2ac2 (plain)
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diff -urN linux-2.6.23.orig/drivers/leds/Kconfig linux-2.6.23/drivers/leds/Kconfig
--- linux-2.6.23.orig/drivers/leds/Kconfig	2007-10-09 22:31:38.000000000 +0200
+++ linux-2.6.23/drivers/leds/Kconfig	2007-11-09 18:15:03.000000000 +0100
@@ -101,6 +101,12 @@
 	  outputs. To be useful the particular board must have LEDs
 	  and they must be connected to the GPIO lines.
 
+config LEDS_MPC832X
+	tristate "LED Support for MPC832x LEDs"
+	depends on LEDS_CLASS && PPC_83xx
+	help
+	  This option enables support for the LEDs on MPC832x boards.
+
 comment "LED Triggers"
 
 config LEDS_TRIGGERS
diff -urN linux-2.6.23.orig/drivers/leds/leds-mpc832x.c linux-2.6.23/drivers/leds/leds-mpc832x.c
--- linux-2.6.23.orig/drivers/leds/leds-mpc832x.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.23/drivers/leds/leds-mpc832x.c	2007-11-09 18:15:19.000000000 +0100
@@ -0,0 +1,119 @@
+/*
+ * drivers/leds/leds-mpc832x.c
+ * Copyright (c) Jeremy Laine <jeremy.laine@bolloretelecom.eu>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * MPC832x leds driver
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <asm/io.h>
+#include <asm/qe.h>
+
+int par_io_config_pin(u8 port, u8 pin, int dir, int open_drain,
+                      int assignment, int has_irq);
+int par_io_data_set(u8 port, u8 pin, u8 val);
+
+static struct platform_dev *leds_pdev = NULL;
+
+#define LED_PORT    3
+#define GREEN_PIN   18
+#define YELLOW_PIN  17
+#define RED_PIN     16
+
+static void mpc832xleds_green_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+	par_io_data_set(LED_PORT, GREEN_PIN, !value);
+}
+
+static struct led_classdev mpc832x_green_led = {
+	.name                   = "mpc832x:green",
+	.brightness_set         = mpc832xleds_green_set,
+};
+
+static void mpc832xleds_yellow_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+	par_io_data_set(LED_PORT, YELLOW_PIN, !value);
+}
+
+static struct led_classdev mpc832x_yellow_led = {
+	.name                   = "mpc832x:yellow",
+	.brightness_set         = mpc832xleds_yellow_set,
+};
+
+static void mpc832xleds_red_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+	par_io_data_set(LED_PORT, RED_PIN, !value);
+}
+
+static struct led_classdev mpc832x_red_led = {
+	.name                   = "mpc832x:red",
+	.brightness_set         = mpc832xleds_red_set,
+};
+
+static int mpc832xleds_probe(struct platform_device *pdev)
+{
+	int ret;
+        
+	ret = led_classdev_register(&pdev->dev, &mpc832x_green_led);
+	if (ret < 0)
+		return ret;
+	par_io_config_pin(LED_PORT, GREEN_PIN, 1, 0, 0, 0);
+
+	ret = led_classdev_register(&pdev->dev, &mpc832x_yellow_led);
+	if (ret < 0)
+		return ret;
+	par_io_config_pin(LED_PORT, YELLOW_PIN, 1, 0, 0, 0);
+	
+	ret = led_classdev_register(&pdev->dev, &mpc832x_red_led);
+	if (ret < 0)
+		return ret;
+	par_io_config_pin(LED_PORT, RED_PIN, 1, 0, 0, 0);
+	
+	return ret;
+}
+
+static int mpc832xleds_remove(struct platform_device *pdev)
+{
+	led_classdev_unregister(&mpc832x_green_led);
+	led_classdev_unregister(&mpc832x_yellow_led);
+	led_classdev_unregister(&mpc832x_red_led);
+	return 0;
+}
+
+static struct platform_driver mpc832xleds_driver = {
+      .driver         = {
+		.name   = "mpc832x-leds",
+		.owner  = THIS_MODULE,
+	},
+	.probe          = mpc832xleds_probe,
+	.remove         = mpc832xleds_remove,
+};
+
+static int __init mpc832xleds_init(void)
+{
+	leds_pdev = platform_device_register_simple("mpc832x-leds", -1, NULL, 0);
+
+	return platform_driver_register(&mpc832xleds_driver);
+}
+
+static void __exit mpc832xleds_exit(void)
+{
+	platform_driver_unregister(&mpc832xleds_driver);
+
+	platform_device_unregister(leds_pdev);
+}
+
+module_init(mpc832xleds_init);
+module_exit(mpc832xleds_exit);
+
+MODULE_AUTHOR("Jeremy Laine <jeremy.laine@bolloretelecom.eu>");
+MODULE_DESCRIPTION("MPC832X GPIO LED driver");
+MODULE_LICENSE("GPL");
diff -urN linux-2.6.23.orig/drivers/leds/Makefile linux-2.6.23/drivers/leds/Makefile
--- linux-2.6.23.orig/drivers/leds/Makefile	2007-10-09 22:31:38.000000000 +0200
+++ linux-2.6.23/drivers/leds/Makefile	2007-11-09 18:15:03.000000000 +0100
@@ -17,6 +17,7 @@
 obj-$(CONFIG_LEDS_H1940)		+= leds-h1940.o
 obj-$(CONFIG_LEDS_COBALT)		+= leds-cobalt.o
 obj-$(CONFIG_LEDS_GPIO)			+= leds-gpio.o
+obj-$(CONFIG_LEDS_MPC832X)		+= leds-mpc832x.o
 
 # LED Triggers
 obj-$(CONFIG_LEDS_TRIGGER_TIMER)	+= ledtrig-timer.o