mfd: Make jz4740_adc_driver static
[linux-2.6.git] / drivers / mfd / ucb1x00-assabet.c
1 /*
2  *  linux/drivers/mfd/ucb1x00-assabet.c
3  *
4  *  Copyright (C) 2001-2003 Russell King, All Rights Reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License.
9  *
10  *  We handle the machine-specific bits of the UCB1x00 driver here.
11  */
12 #include <linux/module.h>
13 #include <linux/init.h>
14 #include <linux/fs.h>
15 #include <linux/proc_fs.h>
16 #include <linux/device.h>
17 #include <linux/mfd/ucb1x00.h>
18
19 #include <mach/dma.h>
20
21
22 #define UCB1X00_ATTR(name,input)\
23 static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
24                            char *buf)   \
25 {                                                               \
26         struct ucb1x00 *ucb = classdev_to_ucb1x00(dev);         \
27         int val;                                                \
28         ucb1x00_adc_enable(ucb);                                \
29         val = ucb1x00_adc_read(ucb, input, UCB_NOSYNC);         \
30         ucb1x00_adc_disable(ucb);                               \
31         return sprintf(buf, "%d\n", val);                       \
32 }                                                               \
33 static DEVICE_ATTR(name,0444,name##_show,NULL)
34
35 UCB1X00_ATTR(vbatt, UCB_ADC_INP_AD1);
36 UCB1X00_ATTR(vcharger, UCB_ADC_INP_AD0);
37 UCB1X00_ATTR(batt_temp, UCB_ADC_INP_AD2);
38
39 static int ucb1x00_assabet_add(struct ucb1x00_dev *dev)
40 {
41         device_create_file(&dev->ucb->dev, &dev_attr_vbatt);
42         device_create_file(&dev->ucb->dev, &dev_attr_vcharger);
43         device_create_file(&dev->ucb->dev, &dev_attr_batt_temp);
44         return 0;
45 }
46
47 static void ucb1x00_assabet_remove(struct ucb1x00_dev *dev)
48 {
49         device_remove_file(&dev->ucb->dev, &dev_attr_batt_temp);
50         device_remove_file(&dev->ucb->dev, &dev_attr_vcharger);
51         device_remove_file(&dev->ucb->dev, &dev_attr_vbatt);
52 }
53
54 static struct ucb1x00_driver ucb1x00_assabet_driver = {
55         .add    = ucb1x00_assabet_add,
56         .remove = ucb1x00_assabet_remove,
57 };
58
59 static int __init ucb1x00_assabet_init(void)
60 {
61         return ucb1x00_register_driver(&ucb1x00_assabet_driver);
62 }
63
64 static void __exit ucb1x00_assabet_exit(void)
65 {
66         ucb1x00_unregister_driver(&ucb1x00_assabet_driver);
67 }
68
69 module_init(ucb1x00_assabet_init);
70 module_exit(ucb1x00_assabet_exit);
71
72 MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
73 MODULE_DESCRIPTION("Assabet noddy testing only example ADC driver");
74 MODULE_LICENSE("GPL");