Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6] / drivers / leds / leds-spitz.c
1 /*
2  * LED Triggers Core
3  *
4  * Copyright 2005-2006 Openedhand Ltd.
5  *
6  * Author: Richard Purdie <rpurdie@openedhand.com>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  *
12  */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/leds.h>
18 #include <asm/hardware/scoop.h>
19 #include <asm/mach-types.h>
20 #include <asm/arch/hardware.h>
21 #include <asm/arch/pxa-regs.h>
22 #include <asm/arch/spitz.h>
23
24 static void spitzled_amber_set(struct led_classdev *led_cdev,
25                                enum led_brightness value)
26 {
27         if (value)
28                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
29         else
30                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
31 }
32
33 static void spitzled_green_set(struct led_classdev *led_cdev,
34                                enum led_brightness value)
35 {
36         if (value)
37                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
38         else
39                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
40 }
41
42 static struct led_classdev spitz_amber_led = {
43         .name                   = "spitz:amber:charge",
44         .default_trigger        = "sharpsl-charge",
45         .brightness_set         = spitzled_amber_set,
46 };
47
48 static struct led_classdev spitz_green_led = {
49         .name                   = "spitz:green:hddactivity",
50         .default_trigger        = "ide-disk",
51         .brightness_set         = spitzled_green_set,
52 };
53
54 #ifdef CONFIG_PM
55 static int spitzled_suspend(struct platform_device *dev, pm_message_t state)
56 {
57 #ifdef CONFIG_LEDS_TRIGGERS
58         if (spitz_amber_led.trigger &&
59             strcmp(spitz_amber_led.trigger->name, "sharpsl-charge"))
60 #endif
61                 led_classdev_suspend(&spitz_amber_led);
62         led_classdev_suspend(&spitz_green_led);
63         return 0;
64 }
65
66 static int spitzled_resume(struct platform_device *dev)
67 {
68         led_classdev_resume(&spitz_amber_led);
69         led_classdev_resume(&spitz_green_led);
70         return 0;
71 }
72 #endif
73
74 static int spitzled_probe(struct platform_device *pdev)
75 {
76         int ret;
77
78         if (machine_is_akita()) {
79                 spitz_green_led.name = "spitz:green:mail";
80                 spitz_green_led.default_trigger = "nand-disk";
81         }
82
83         ret = led_classdev_register(&pdev->dev, &spitz_amber_led);
84         if (ret < 0)
85                 return ret;
86
87         ret = led_classdev_register(&pdev->dev, &spitz_green_led);
88         if (ret < 0)
89                 led_classdev_unregister(&spitz_amber_led);
90
91         return ret;
92 }
93
94 static int spitzled_remove(struct platform_device *pdev)
95 {
96         led_classdev_unregister(&spitz_amber_led);
97         led_classdev_unregister(&spitz_green_led);
98
99         return 0;
100 }
101
102 static struct platform_driver spitzled_driver = {
103         .probe          = spitzled_probe,
104         .remove         = spitzled_remove,
105 #ifdef CONFIG_PM
106         .suspend        = spitzled_suspend,
107         .resume         = spitzled_resume,
108 #endif
109         .driver         = {
110                 .name           = "spitz-led",
111                 .owner          = THIS_MODULE,
112         },
113 };
114
115 static int __init spitzled_init(void)
116 {
117         return platform_driver_register(&spitzled_driver);
118 }
119
120 static void __exit spitzled_exit(void)
121 {
122         platform_driver_unregister(&spitzled_driver);
123 }
124
125 module_init(spitzled_init);
126 module_exit(spitzled_exit);
127
128 MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
129 MODULE_DESCRIPTION("Spitz LED driver");
130 MODULE_LICENSE("GPL");
131 MODULE_ALIAS("platform:spitz-led");