[PATCH] i386: remove gcc version check for CONFIG_REGPARM
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / mfd / ucb1x00-assabet.c
blobe325fa71f38ba2ad05ebfdb923f4b4c9b3227e11
1 /*
2 * linux/drivers/mfd/ucb1x00-assabet.c
4 * Copyright (C) 2001-2003 Russell King, All Rights Reserved.
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.
10 * We handle the machine-specific bits of the UCB1x00 driver here.
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>
18 #include <asm/dma.h>
20 #include "ucb1x00.h"
22 #define UCB1X00_ATTR(name,input)\
23 static ssize_t name##_show(struct class_device *dev, char *buf) \
24 { \
25 struct ucb1x00 *ucb = classdev_to_ucb1x00(dev); \
26 int val; \
27 ucb1x00_adc_enable(ucb); \
28 val = ucb1x00_adc_read(ucb, input, UCB_NOSYNC); \
29 ucb1x00_adc_disable(ucb); \
30 return sprintf(buf, "%d\n", val); \
31 } \
32 static CLASS_DEVICE_ATTR(name,0444,name##_show,NULL)
34 UCB1X00_ATTR(vbatt, UCB_ADC_INP_AD1);
35 UCB1X00_ATTR(vcharger, UCB_ADC_INP_AD0);
36 UCB1X00_ATTR(batt_temp, UCB_ADC_INP_AD2);
38 static int ucb1x00_assabet_add(struct ucb1x00_dev *dev)
40 class_device_create_file(&dev->ucb->cdev, &class_device_attr_vbatt);
41 class_device_create_file(&dev->ucb->cdev, &class_device_attr_vcharger);
42 class_device_create_file(&dev->ucb->cdev, &class_device_attr_batt_temp);
43 return 0;
46 static void ucb1x00_assabet_remove(struct ucb1x00_dev *dev)
48 class_device_remove_file(&dev->ucb->cdev, &class_device_attr_batt_temp);
49 class_device_remove_file(&dev->ucb->cdev, &class_device_attr_vcharger);
50 class_device_remove_file(&dev->ucb->cdev, &class_device_attr_vbatt);
53 static struct ucb1x00_driver ucb1x00_assabet_driver = {
54 .add = ucb1x00_assabet_add,
55 .remove = ucb1x00_assabet_remove,
58 static int __init ucb1x00_assabet_init(void)
60 return ucb1x00_register_driver(&ucb1x00_assabet_driver);
63 static void __exit ucb1x00_assabet_exit(void)
65 ucb1x00_unregister_driver(&ucb1x00_assabet_driver);
68 module_init(ucb1x00_assabet_init);
69 module_exit(ucb1x00_assabet_exit);
71 MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
72 MODULE_DESCRIPTION("Assabet noddy testing only example ADC driver");
73 MODULE_LICENSE("GPL");