[PATCH] LED: add LED device support for the zaurus corgi and spitz models

Adds LED drivers for LEDs found on the Sharp Zaurus c7x0 (corgi, shepherd,
husky) and cxx00 (akita, spitz, borzoi) models.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/arm/mach-pxa/corgi.c

@@ -163,6 +163,14 @@ static struct platform_device corgikbd_device = {
 };
 
 
+/*
+ * Corgi LEDs
+ */
+static struct platform_device corgiled_device = {
+	.name		= "corgi-led",
+	.id		= -1,
+};
+
 /*
  * Corgi Touch Screen Device
  */
@@ -297,6 +305,7 @@ static struct platform_device *devices[] __initdata = {
 	&corgikbd_device,
 	&corgibl_device,
 	&corgits_device,
+	&corgiled_device,
 };
 
 static void __init corgi_init(void)

arch/arm/mach-pxa/spitz.c

@@ -241,6 +241,14 @@ static struct platform_device spitzkbd_device = {
 };
 
 
+/*
+ * Spitz LEDs
+ */
+static struct platform_device spitzled_device = {
+	.name		= "spitz-led",
+	.id		= -1,
+};
+
 /*
  * Spitz Touch Screen Device
  */
@@ -418,6 +426,7 @@ static struct platform_device *devices[] __initdata = {
 	&spitzkbd_device,
 	&spitzts_device,
 	&spitzbl_device,
+	&spitzled_device,
 };
 
 static void __init common_init(void)

drivers/leds/Kconfig

@@ -22,6 +22,20 @@ config LEDS_TRIGGERS
 	  These triggers allow kernel events to drive the LEDs and can
 	  be configured via sysfs. If unsure, say Y.
 
+config LEDS_CORGI
+	tristate "LED Support for the Sharp SL-C7x0 series"
+	depends LEDS_CLASS && PXA_SHARP_C7xx
+	help
+	  This option enables support for the LEDs on Sharp Zaurus
+	  SL-C7x0 series (C700, C750, C760, C860).
+
+config LEDS_SPITZ
+	tristate "LED Support for the Sharp SL-Cxx00 series"
+	depends LEDS_CLASS && PXA_SHARP_Cxx00
+	help
+	  This option enables support for the LEDs on Sharp Zaurus
+	  SL-Cxx00 series (C1000, C3000, C3100).
+
 config LEDS_TRIGGER_TIMER
 	tristate "LED Timer Trigger"
 	depends LEDS_TRIGGERS

drivers/leds/Makefile

@@ -4,5 +4,9 @@ obj-$(CONFIG_NEW_LEDS)			+= led-core.o
 obj-$(CONFIG_LEDS_CLASS)		+= led-class.o
 obj-$(CONFIG_LEDS_TRIGGERS)		+= led-triggers.o
 
+# LED Platform Drivers
+obj-$(CONFIG_LEDS_CORGI)		+= leds-corgi.o
+obj-$(CONFIG_LEDS_SPITZ)		+= leds-spitz.o
+
 # LED Triggers
 obj-$(CONFIG_LEDS_TRIGGER_TIMER)	+= ledtrig-timer.o

drivers/leds/leds-corgi.c

+/*
+ * LED Triggers Core
+ *
+ * Copyright 2005-2006 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <asm/mach-types.h>
+#include <asm/arch/corgi.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/hardware/scoop.h>
+
+static void corgiled_amber_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+	if (value)
+		GPSR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
+	else
+		GPCR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
+}
+
+static void corgiled_green_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+	if (value)
+		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
+	else
+		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
+}
+
+static struct led_classdev corgi_amber_led = {
+	.name			= "corgi:amber",
+	.default_trigger	= "sharpsl-charge",
+	.brightness_set		= corgiled_amber_set,
+};
+
+static struct led_classdev corgi_green_led = {
+	.name			= "corgi:green",
+	.default_trigger	= "nand-disk",
+	.brightness_set		= corgiled_green_set,
+};
+
+#ifdef CONFIG_PM
+static int corgiled_suspend(struct platform_device *dev, pm_message_t state)
+{
+#ifdef CONFIG_LEDS_TRIGGERS
+	if (corgi_amber_led.trigger && strcmp(corgi_amber_led.trigger->name, "sharpsl-charge"))
+#endif
+		led_classdev_suspend(&corgi_amber_led);
+	led_classdev_suspend(&corgi_green_led);
+	return 0;
+}
+
+static int corgiled_resume(struct platform_device *dev)
+{
+	led_classdev_resume(&corgi_amber_led);
+	led_classdev_resume(&corgi_green_led);
+	return 0;
+}
+#endif
+
+static int corgiled_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = led_classdev_register(&pdev->dev, &corgi_amber_led);
+	if (ret < 0)
+		return ret;
+
+	ret = led_classdev_register(&pdev->dev, &corgi_green_led);
+	if (ret < 0)
+		led_classdev_unregister(&corgi_amber_led);
+
+	return ret;
+}
+
+static int corgiled_remove(struct platform_device *pdev)
+{
+	led_classdev_unregister(&corgi_amber_led);
+	led_classdev_unregister(&corgi_green_led);
+	return 0;
+}
+
+static struct platform_driver corgiled_driver = {
+	.probe		= corgiled_probe,
+	.remove		= corgiled_remove,
+#ifdef CONFIG_PM
+	.suspend	= corgiled_suspend,
+	.resume		= corgiled_resume,
+#endif
+	.driver		= {
+		.name		= "corgi-led",
+	},
+};
+
+static int __init corgiled_init(void)
+{
+	return platform_driver_register(&corgiled_driver);
+}
+
+static void __exit corgiled_exit(void)
+{
+ 	platform_driver_unregister(&corgiled_driver);
+}
+
+module_init(corgiled_init);
+module_exit(corgiled_exit);
+
+MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
+MODULE_DESCRIPTION("Corgi LED driver");
+MODULE_LICENSE("GPL");

drivers/leds/leds-spitz.c

+/*
+ * LED Triggers Core
+ *
+ * Copyright 2005-2006 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <asm/hardware/scoop.h>
+#include <asm/mach-types.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/spitz.h>
+
+static void spitzled_amber_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+	if (value)
+		set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
+	else
+		reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
+}
+
+static void spitzled_green_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+	if (value)
+		set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
+	else
+		reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
+}
+
+static struct led_classdev spitz_amber_led = {
+	.name			= "spitz:amber",
+	.default_trigger	= "sharpsl-charge",
+	.brightness_set		= spitzled_amber_set,
+};
+
+static struct led_classdev spitz_green_led = {
+	.name			= "spitz:green",
+	.default_trigger	= "ide-disk",
+	.brightness_set		= spitzled_green_set,
+};
+
+#ifdef CONFIG_PM
+static int spitzled_suspend(struct platform_device *dev, pm_message_t state)
+{
+#ifdef CONFIG_LEDS_TRIGGERS
+	if (spitz_amber_led.trigger && strcmp(spitz_amber_led.trigger->name, "sharpsl-charge"))
+#endif
+		led_classdev_suspend(&spitz_amber_led);
+	led_classdev_suspend(&spitz_green_led);
+	return 0;
+}
+
+static int spitzled_resume(struct platform_device *dev)
+{
+	led_classdev_resume(&spitz_amber_led);
+	led_classdev_resume(&spitz_green_led);
+	return 0;
+}
+#endif
+
+static int spitzled_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	if (machine_is_akita())
+		spitz_green_led.default_trigger = "nand-disk";
+
+	ret = led_classdev_register(&pdev->dev, &spitz_amber_led);
+	if (ret < 0)
+		return ret;
+
+	ret = led_classdev_register(&pdev->dev, &spitz_green_led);
+	if (ret < 0)
+		led_classdev_unregister(&spitz_amber_led);
+
+	return ret;
+}
+
+static int spitzled_remove(struct platform_device *pdev)
+{
+	led_classdev_unregister(&spitz_amber_led);
+	led_classdev_unregister(&spitz_green_led);
+
+	return 0;
+}
+
+static struct platform_driver spitzled_driver = {
+	.probe		= spitzled_probe,
+	.remove		= spitzled_remove,
+#ifdef CONFIG_PM
+	.suspend	= spitzled_suspend,
+	.resume		= spitzled_resume,
+#endif
+	.driver		= {
+		.name		= "spitz-led",
+	},
+};
+
+static int __init spitzled_init(void)
+{
+	return platform_driver_register(&spitzled_driver);
+}
+
+static void __exit spitzled_exit(void)
+{
+ 	platform_driver_unregister(&spitzled_driver);
+}
+
+module_init(spitzled_init);
+module_exit(spitzled_exit);
+
+MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
+MODULE_DESCRIPTION("Spitz LED driver");
+MODULE_LICENSE("GPL");