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authorMike Rapoport <mike@compulab.co.il>2007-09-23 10:59:26 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-10-15 13:53:57 -0400
commit3696a8a426f8caebd97463e9b5cf9f06c1c36759 (patch)
tree217d5ef3219b335f72360cfa7f0f1731443b09bb /drivers
parent3e0cc7ee045fb53e8215fed7442455c0cee0ee93 (diff)
[ARM] 4576/1: CM-X270 machine support
This patch provides core support for CM-X270 platform. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/leds/Kconfig6
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/leds-cm-x270.c122
3 files changed, 129 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 3cb23210b912..257b44094e4c 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -108,6 +108,12 @@ config LEDS_GPIO
108 outputs. To be useful the particular board must have LEDs 108 outputs. To be useful the particular board must have LEDs
109 and they must be connected to the GPIO lines. 109 and they must be connected to the GPIO lines.
110 110
111config LEDS_CM_X270
112 tristate "LED Support for the CM-X270 LEDs"
113 depends on LEDS_CLASS && MACH_ARMCORE
114 help
115 This option enables support for the CM-X270 LEDs.
116
111comment "LED Triggers" 117comment "LED Triggers"
112 118
113config LEDS_TRIGGERS 119config LEDS_TRIGGERS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index d2ca1abbc3d2..a60de1b46c2c 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
18obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o 18obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
19obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o 19obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
20obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o 20obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
21obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
21 22
22# LED Triggers 23# LED Triggers
23obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o 24obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
diff --git a/drivers/leds/leds-cm-x270.c b/drivers/leds/leds-cm-x270.c
new file mode 100644
index 000000000000..9aebef02a974
--- /dev/null
+++ b/drivers/leds/leds-cm-x270.c
@@ -0,0 +1,122 @@
1/*
2 * drivers/leds/leds-cm-x270.c
3 *
4 * Copyright 2007 CompuLab Ltd.
5 * Author: Mike Rapoport <mike@compulab.co.il>
6 *
7 * Based on leds-corgi.c
8 * Author: Richard Purdie <rpurdie@openedhand.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 */
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/platform_device.h>
19#include <linux/leds.h>
20
21#include <asm/arch/hardware.h>
22#include <asm/arch/pxa-regs.h>
23
24#define GPIO_RED_LED (93)
25#define GPIO_GREEN_LED (94)
26
27static void cmx270_red_set(struct led_classdev *led_cdev,
28 enum led_brightness value)
29{
30 if (value)
31 GPCR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED);
32 else
33 GPSR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED);
34}
35
36static void cmx270_green_set(struct led_classdev *led_cdev,
37 enum led_brightness value)
38{
39 if (value)
40 GPCR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED);
41 else
42 GPSR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED);
43}
44
45static struct led_classdev cmx270_red_led = {
46 .name = "cm-x270:red",
47 .default_trigger = "nand-disk",
48 .brightness_set = cmx270_red_set,
49};
50
51static struct led_classdev cmx270_green_led = {
52 .name = "cm-x270:green",
53 .default_trigger = "heartbeat",
54 .brightness_set = cmx270_green_set,
55};
56
57#ifdef CONFIG_PM
58static int cmx270led_suspend(struct platform_device *dev, pm_message_t state)
59{
60 led_classdev_suspend(&cmx270_red_led);
61 led_classdev_suspend(&cmx270_green_led);
62 return 0;
63}
64
65static int cmx270led_resume(struct platform_device *dev)
66{
67 led_classdev_resume(&cmx270_red_led);
68 led_classdev_resume(&cmx270_green_led);
69 return 0;
70}
71#endif
72
73static int cmx270led_probe(struct platform_device *pdev)
74{
75 int ret;
76
77 ret = led_classdev_register(&pdev->dev, &cmx270_red_led);
78 if (ret < 0)
79 return ret;
80
81 ret = led_classdev_register(&pdev->dev, &cmx270_green_led);
82 if (ret < 0)
83 led_classdev_unregister(&cmx270_red_led);
84
85 return ret;
86}
87
88static int cmx270led_remove(struct platform_device *pdev)
89{
90 led_classdev_unregister(&cmx270_red_led);
91 led_classdev_unregister(&cmx270_green_led);
92 return 0;
93}
94
95static struct platform_driver cmx270led_driver = {
96 .probe = cmx270led_probe,
97 .remove = cmx270led_remove,
98#ifdef CONFIG_PM
99 .suspend = cmx270led_suspend,
100 .resume = cmx270led_resume,
101#endif
102 .driver = {
103 .name = "cm-x270-led",
104 },
105};
106
107static int __init cmx270led_init(void)
108{
109 return platform_driver_register(&cmx270led_driver);
110}
111
112static void __exit cmx270led_exit(void)
113{
114 platform_driver_unregister(&cmx270led_driver);
115}
116
117module_init(cmx270led_init);
118module_exit(cmx270led_exit);
119
120MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
121MODULE_DESCRIPTION("CM-x270 LED driver");
122MODULE_LICENSE("GPL");