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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 23:08:50 (GMT) |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 23:08:50 (GMT) |
commit | 65a6ec0d72a07f16719e9b7a96e1c4bae044b591 (patch) | |
tree | 344e03a5039a44982c1b78d6113633b21b434820 /drivers/leds/leds-cm-x270.c | |
parent | 541010e4b8921cd781ff02ae68028501457045b6 (diff) | |
parent | 0181b61a988424b5cc44fe09e6968142359c815e (diff) | |
download | linux-65a6ec0d72a07f16719e9b7a96e1c4bae044b591.tar.xz |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits)
[ARM] 4578/1: CM-x270: PCMCIA support
[ARM] 4577/1: ITE 8152 PCI bridge support
[ARM] 4576/1: CM-X270 machine support
[ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put()
[ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c
[ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c
[ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols
[ARM] pxa: PXA3xx base support
[NET] smc91x: fix PXA DMA support code
[SERIAL] Fix console initialisation ordering
[ARM] pxa: tidy up arch/arm/mach-pxa/Makefile
[ARM] Update arch/arm/Kconfig for drivers/Kconfig changes
[ARM] 4600/1: fix kernel build failure with build-id-supporting binutils
[ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23)
[ARM] Rename consistent_sync() as dma_cache_maint()
[ARM] 4572/1: ep93xx: add cirrus logic edb9307 support
[ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support
[ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32
[ARM] 4594/1: ns9xxx: use the new gpio functions
[ARM] 4593/1: ns9xxx: implement generic clockevents
...
Diffstat (limited to 'drivers/leds/leds-cm-x270.c')
-rw-r--r-- | drivers/leds/leds-cm-x270.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/drivers/leds/leds-cm-x270.c b/drivers/leds/leds-cm-x270.c new file mode 100644 index 0000000..9aebef0 --- /dev/null +++ b/drivers/leds/leds-cm-x270.c @@ -0,0 +1,122 @@ +/* + * drivers/leds/leds-cm-x270.c + * + * Copyright 2007 CompuLab Ltd. + * Author: Mike Rapoport <mike@compulab.co.il> + * + * Based on leds-corgi.c + * 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/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> + +#include <asm/arch/hardware.h> +#include <asm/arch/pxa-regs.h> + +#define GPIO_RED_LED (93) +#define GPIO_GREEN_LED (94) + +static void cmx270_red_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + GPCR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED); + else + GPSR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED); +} + +static void cmx270_green_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + GPCR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED); + else + GPSR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED); +} + +static struct led_classdev cmx270_red_led = { + .name = "cm-x270:red", + .default_trigger = "nand-disk", + .brightness_set = cmx270_red_set, +}; + +static struct led_classdev cmx270_green_led = { + .name = "cm-x270:green", + .default_trigger = "heartbeat", + .brightness_set = cmx270_green_set, +}; + +#ifdef CONFIG_PM +static int cmx270led_suspend(struct platform_device *dev, pm_message_t state) +{ + led_classdev_suspend(&cmx270_red_led); + led_classdev_suspend(&cmx270_green_led); + return 0; +} + +static int cmx270led_resume(struct platform_device *dev) +{ + led_classdev_resume(&cmx270_red_led); + led_classdev_resume(&cmx270_green_led); + return 0; +} +#endif + +static int cmx270led_probe(struct platform_device *pdev) +{ + int ret; + + ret = led_classdev_register(&pdev->dev, &cmx270_red_led); + if (ret < 0) + return ret; + + ret = led_classdev_register(&pdev->dev, &cmx270_green_led); + if (ret < 0) + led_classdev_unregister(&cmx270_red_led); + + return ret; +} + +static int cmx270led_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&cmx270_red_led); + led_classdev_unregister(&cmx270_green_led); + return 0; +} + +static struct platform_driver cmx270led_driver = { + .probe = cmx270led_probe, + .remove = cmx270led_remove, +#ifdef CONFIG_PM + .suspend = cmx270led_suspend, + .resume = cmx270led_resume, +#endif + .driver = { + .name = "cm-x270-led", + }, +}; + +static int __init cmx270led_init(void) +{ + return platform_driver_register(&cmx270led_driver); +} + +static void __exit cmx270led_exit(void) +{ + platform_driver_unregister(&cmx270led_driver); +} + +module_init(cmx270led_init); +module_exit(cmx270led_exit); + +MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); +MODULE_DESCRIPTION("CM-x270 LED driver"); +MODULE_LICENSE("GPL"); |