8349c462788c9e2f41eb0977b2f491f79bbb6f9a
[linux-3.10.git] / arch / arm / plat-s3c / dev-i2c1.c
1 /* linux/arch/arm/plat-s3c/dev-i2c1.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 1
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_IIC1,
29                 .end   = S3C_PA_IIC1 + SZ_4K - 1,
30                 .flags = IORESOURCE_MEM,
31         },
32         [1] = {
33                 .start = IRQ_IIC1,
34                 .end   = IRQ_IIC1,
35                 .flags = IORESOURCE_IRQ,
36         },
37 };
38
39 struct platform_device s3c_device_i2c1 = {
40         .name             = "s3c2410-i2c",
41         .id               = 1,
42         .num_resources    = ARRAY_SIZE(s3c_i2c_resource),
43         .resource         = s3c_i2c_resource,
44 };
45
46 static struct s3c2410_platform_i2c default_i2c_data1 __initdata = {
47         .flags          = 0,
48         .bus_num        = 1,
49         .slave_addr     = 0x10,
50         .frequency      = 100*1000,
51         .sda_delay      = 100,
52 };
53
54 void __init s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *pd)
55 {
56         struct s3c2410_platform_i2c *npd;
57
58         if (!pd)
59                 pd = &default_i2c_data1;
60
61         npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
62         if (!npd)
63                 printk(KERN_ERR "%s: no memory for platform data\n", __func__);
64         else if (!npd->cfg_gpio)
65                 npd->cfg_gpio = s3c_i2c1_cfg_gpio;
66
67         s3c_device_i2c1.dev.platform_data = npd;
68 }