1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright 2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * http://armlinux.simtec.co.uk/
6 *
7 * S3C - HWMon interface for ADC
8 */
9
10 #ifndef __HWMON_S3C_H__
11 #define __HWMON_S3C_H__
12
13 /**
14 * s3c_hwmon_chcfg - channel configuration
15 * @name: The name to give this channel.
16 * @mult: Multiply the ADC value read by this.
17 * @div: Divide the value from the ADC by this.
18 *
19 * The value read from the ADC is converted to a value that
20 * hwmon expects (mV) by result = (value_read * @mult) / @div.
21 */
22 struct s3c_hwmon_chcfg {
23 const char *name;
24 unsigned int mult;
25 unsigned int div;
26 };
27
28 /**
29 * s3c_hwmon_pdata - HWMON platform data
30 * @in: One configuration for each possible channel used.
31 */
32 struct s3c_hwmon_pdata {
33 struct s3c_hwmon_chcfg *in[8];
34 };
35
36 /**
37 * s3c_hwmon_set_platdata - Set platform data for S3C HWMON device
38 * @pd: Platform data to register to device.
39 *
40 * Register the given platform data for use with the S3C HWMON device.
41 * The call will copy the platform data, so the board definitions can
42 * make the structure itself __initdata.
43 */
44 extern void __init s3c_hwmon_set_platdata(struct s3c_hwmon_pdata *pd);
45
46 #endif /* __HWMON_S3C_H__ */