[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>

1 files changed, 125 insertions, 0 deletions

diff --git a/drivers/leds/leds-spitz.c b/drivers/leds/leds-spitz.c
new file mode 100644
index 000000000000..65bbef4a5e09
--- /dev/null
+++ b/drivers/leds/leds-spitz.c
@@ -0,0 +1,125 @@
+/*
+ * 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");