428372868fbba66408c1fc2d290de9d138399397
[linux-3.10.git] / arch / arm / plat-s3c / dev-i2c0.c
1 /* linux/arch/arm/plat-s3c/dev-i2c0.c
2  *
3  * Copyright 2008,2009 Simtec Electronics
4  *      Ben Dooks <ben@simtec.co.uk>
5  *      http://armlinux.simtec.co.uk/
6  *
7  * S3C series device definition for i2c device 0
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/string.h>
16 #include <linux/platform_device.h>
17
18 #include <mach/irqs.h>
19 #include <mach/map.h>
20
21 #include <plat/regs-iic.h>
22 #include <plat/iic.h>
23 #include <plat/devs.h>
24 #include <plat/cpu.h>
25
26 static struct resource s3c_i2c_resource[] = {
27         [0] = {
28                 .start = S3C_PA_IIC,
29                 .end   = S3C_PA_IIC + SZ_4K - 1,
30                 .flags = IORESOURCE_MEM,
31         },
32         [1] = {
33                 .start = IRQ_IIC,
34                 .end   = IRQ_IIC,
35                 .flags = IORESOURCE_IRQ,
36         },
37 };
38
39 struct platform_device s3c_device_i2c0 = {
40         .name             = "s3c2410-i2c",
41 #ifdef CONFIG_S3C_DEV_I2C1
42         .id               = 0,
43 #else
44         .id               = -1,
45 #endif
46         .num_resources    = ARRAY_SIZE(s3c_i2c_resource),
47         .resource         = s3c_i2c_resource,
48 };
49
50 static struct s3c2410_platform_i2c default_i2c_data0 __initdata = {
51         .flags          = 0,
52         .slave_addr     = 0x10,
53         .frequency      = 100*1000,
54         .sda_delay      = 100,
55 };
56
57 void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd)
58 {
59         struct s3c2410_platform_i2c *npd;
60
61         if (!pd)
62                 pd = &default_i2c_data0;
63
64         npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
65         if (!npd)
66                 printk(KERN_ERR "%s: no memory for platform data\n", __func__);
67         else if (!npd->cfg_gpio)
68                 npd->cfg_gpio = s3c_i2c0_cfg_gpio;
69
70         s3c_device_i2c0.dev.platform_data = npd;
71 }