/* * 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", .owner = THIS_MODULE, }, }; 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"); MODULE_ALIAS("platform:cm-x270-led");