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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 23:08:50 (GMT)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 23:08:50 (GMT)
commit65a6ec0d72a07f16719e9b7a96e1c4bae044b591 (patch)
tree344e03a5039a44982c1b78d6113633b21b434820 /drivers/leds/leds-cm-x270.c
parent541010e4b8921cd781ff02ae68028501457045b6 (diff)
parent0181b61a988424b5cc44fe09e6968142359c815e (diff)
downloadlinux-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.c122
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");