[PATCH] LED: add device support for tosa

Adds LED drivers for LEDs found on the Sharp Zaurus c6000 model (tosa).

Signed-off-by: Dirk Opfer <dirk@opfer-online.de>
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>
This commit is contained in:
Dirk Opfer 2006-03-31 02:31:12 -08:00 committed by Linus Torvalds
parent 6a0c51bfce
commit 6d0cf3e048
4 changed files with 148 additions and 0 deletions

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@ -251,10 +251,19 @@ static struct platform_device tosakbd_device = {
.id = -1,
};
/*
* Tosa LEDs
*/
static struct platform_device tosaled_device = {
.name = "tosa-led",
.id = -1,
};
static struct platform_device *devices[] __initdata = {
&tosascoop_device,
&tosascoop_jc_device,
&tosakbd_device,
&tosaled_device,
};
static void __init tosa_init(void)

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@ -52,6 +52,13 @@ config LEDS_IXP4XX
particular board must have LEDs and they must be connected
to the GPIO lines. If unsure, say Y.
config LEDS_TOSA
tristate "LED Support for the Sharp SL-6000 series"
depends LEDS_CLASS && PXA_SHARPSL
help
This option enables support for the LEDs on Sharp Zaurus
SL-6000 series.
config LEDS_TRIGGER_TIMER
tristate "LED Timer Trigger"
depends LEDS_TRIGGERS

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@ -9,6 +9,7 @@ obj-$(CONFIG_LEDS_CORGI) += leds-corgi.o
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
obj-$(CONFIG_LEDS_SPITZ) += leds-spitz.o
obj-$(CONFIG_LEDS_IXP4XX) += leds-ixp4xx-gpio.o
obj-$(CONFIG_LEDS_TOSA) += leds-tosa.o
# LED Triggers
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o

131
drivers/leds/leds-tosa.c Normal file
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@ -0,0 +1,131 @@
/*
* LED Triggers Core
*
* Copyright 2005 Dirk Opfer
*
* Author: Dirk Opfer <Dirk@Opfer-Online.de>
* based on spitz.c
*
* 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/tosa.h>
static void tosaled_amber_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
set_scoop_gpio(&tosascoop_jc_device.dev,
TOSA_SCOOP_JC_CHRG_ERR_LED);
else
reset_scoop_gpio(&tosascoop_jc_device.dev,
TOSA_SCOOP_JC_CHRG_ERR_LED);
}
static void tosaled_green_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
set_scoop_gpio(&tosascoop_jc_device.dev,
TOSA_SCOOP_JC_NOTE_LED);
else
reset_scoop_gpio(&tosascoop_jc_device.dev,
TOSA_SCOOP_JC_NOTE_LED);
}
static struct led_classdev tosa_amber_led = {
.name = "tosa:amber",
.default_trigger = "sharpsl-charge",
.brightness_set = tosaled_amber_set,
};
static struct led_classdev tosa_green_led = {
.name = "tosa:green",
.default_trigger = "nand-disk",
.brightness_set = tosaled_green_set,
};
#ifdef CONFIG_PM
static int tosaled_suspend(struct platform_device *dev, pm_message_t state)
{
#ifdef CONFIG_LEDS_TRIGGERS
if (tosa_amber_led.trigger && strcmp(tosa_amber_led.trigger->name,
"sharpsl-charge"))
#endif
led_classdev_suspend(&tosa_amber_led);
led_classdev_suspend(&tosa_green_led);
return 0;
}
static int tosaled_resume(struct platform_device *dev)
{
led_classdev_resume(&tosa_amber_led);
led_classdev_resume(&tosa_green_led);
return 0;
}
#else
#define tosaled_suspend NULL
#define tosaled_resume NULL
#endif
static int tosaled_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &tosa_amber_led);
if (ret < 0)
return ret;
ret = led_classdev_register(&pdev->dev, &tosa_green_led);
if (ret < 0)
led_classdev_unregister(&tosa_amber_led);
return ret;
}
static int tosaled_remove(struct platform_device *pdev)
{
led_classdev_unregister(&tosa_amber_led);
led_classdev_unregister(&tosa_green_led);
return 0;
}
static struct platform_driver tosaled_driver = {
.probe = tosaled_probe,
.remove = tosaled_remove,
.suspend = tosaled_suspend,
.resume = tosaled_resume,
.driver = {
.name = "tosa-led",
},
};
static int __init tosaled_init(void)
{
return platform_driver_register(&tosaled_driver);
}
static void __exit tosaled_exit(void)
{
platform_driver_unregister(&tosaled_driver);
}
module_init(tosaled_init);
module_exit(tosaled_exit);
MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>");
MODULE_DESCRIPTION("Tosa LED driver");
MODULE_LICENSE("GPL");