leds: Cleanup various whitespace and code style issues
[linux-2.6.git] / drivers / leds / leds-hp6xx.c
1 /*
2  * LED Triggers Core
3  * For the HP Jornada 620/660/680/690 handhelds
4  *
5  * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
6  *     this driver is based on leds-spitz.c by Richard Purdie.
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 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/leds.h>
17 #include <asm/hd64461.h>
18 #include <asm/hp6xx.h>
19
20 static void hp6xxled_green_set(struct led_classdev *led_cdev,
21                                enum led_brightness value)
22 {
23         u8 v8;
24
25         v8 = inb(PKDR);
26         if (value)
27                 outb(v8 & (~PKDR_LED_GREEN), PKDR);
28         else
29                 outb(v8 | PKDR_LED_GREEN, PKDR);
30 }
31
32 static void hp6xxled_red_set(struct led_classdev *led_cdev,
33                              enum led_brightness value)
34 {
35         u16 v16;
36
37         v16 = inw(HD64461_GPBDR);
38         if (value)
39                 outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
40         else
41                 outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
42 }
43
44 static struct led_classdev hp6xx_red_led = {
45         .name                   = "hp6xx:red",
46         .default_trigger        = "hp6xx-charge",
47         .brightness_set         = hp6xxled_red_set,
48 };
49
50 static struct led_classdev hp6xx_green_led = {
51         .name                   = "hp6xx:green",
52         .default_trigger        = "ide-disk",
53         .brightness_set         = hp6xxled_green_set,
54 };
55
56 #ifdef CONFIG_PM
57 static int hp6xxled_suspend(struct platform_device *dev, pm_message_t state)
58 {
59         led_classdev_suspend(&hp6xx_red_led);
60         led_classdev_suspend(&hp6xx_green_led);
61         return 0;
62 }
63
64 static int hp6xxled_resume(struct platform_device *dev)
65 {
66         led_classdev_resume(&hp6xx_red_led);
67         led_classdev_resume(&hp6xx_green_led);
68         return 0;
69 }
70 #endif
71
72 static int hp6xxled_probe(struct platform_device *pdev)
73 {
74         int ret;
75
76         ret = led_classdev_register(&pdev->dev, &hp6xx_red_led);
77         if (ret < 0)
78                 return ret;
79
80         ret = led_classdev_register(&pdev->dev, &hp6xx_green_led);
81         if (ret < 0)
82                 led_classdev_unregister(&hp6xx_red_led);
83
84         return ret;
85 }
86
87 static int hp6xxled_remove(struct platform_device *pdev)
88 {
89         led_classdev_unregister(&hp6xx_red_led);
90         led_classdev_unregister(&hp6xx_green_led);
91
92         return 0;
93 }
94
95 /* work with hotplug and coldplug */
96 MODULE_ALIAS("platform:hp6xx-led");
97
98 static struct platform_driver hp6xxled_driver = {
99         .probe          = hp6xxled_probe,
100         .remove         = hp6xxled_remove,
101 #ifdef CONFIG_PM
102         .suspend        = hp6xxled_suspend,
103         .resume         = hp6xxled_resume,
104 #endif
105         .driver         = {
106                 .name           = "hp6xx-led",
107                 .owner          = THIS_MODULE,
108         },
109 };
110
111 static int __init hp6xxled_init(void)
112 {
113         return platform_driver_register(&hp6xxled_driver);
114 }
115
116 static void __exit hp6xxled_exit(void)
117 {
118         platform_driver_unregister(&hp6xxled_driver);
119 }
120
121 module_init(hp6xxled_init);
122 module_exit(hp6xxled_exit);
123
124 MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
125 MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
126 MODULE_LICENSE("GPL");