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gerrit-public.fairphone.software / kernel / msm-4.9 / e618834ef9608750a36d03d4aa9a9f931aa788d6 / . / arch / arm / plat-samsung / dev-i2c0.c
blob: 3a601c16f03c78c4a40dcd81c70d24b503204c09 [file] [log] [blame]
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]1/* linux/arch/arm/plat-s3c/dev-i2c0.c
2 *
Ben Dookse02f8662009-11-13 22:54:13 +0000[diff] [blame]3 * Copyright 2008-2009 Simtec Electronics
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]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
Tejun Heo5a0e3ad2010-03-24 17:04:11 +0900[diff] [blame]14#include <linux/gfp.h>
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]15#include <linux/kernel.h>
16#include <linux/string.h>
17#include <linux/platform_device.h>
18
Russell King80b02c12009-01-08 10:01:47 +0000[diff] [blame]19#include <mach/irqs.h>
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]20#include <mach/map.h>
21
22#include <plat/regs-iic.h>
23#include <plat/iic.h>
24#include <plat/devs.h>
25#include <plat/cpu.h>
26
27static struct resource s3c_i2c_resource[] = {
28 [0] = {
29 .start = S3C_PA_IIC,
30 .end = S3C_PA_IIC + SZ_4K - 1,
31 .flags = IORESOURCE_MEM,
32 },
33 [1] = {
34 .start = IRQ_IIC,
35 .end = IRQ_IIC,
36 .flags = IORESOURCE_IRQ,
37 },
38};
39
40struct platform_device s3c_device_i2c0 = {
41 .name = "s3c2410-i2c",
Ben Dooks1aba8342008-10-31 16:14:55 +0000[diff] [blame]42#ifdef CONFIG_S3C_DEV_I2C1
43 .id = 0,
44#else
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]45 .id = -1,
Ben Dooks1aba8342008-10-31 16:14:55 +0000[diff] [blame]46#endif
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]47 .num_resources = ARRAY_SIZE(s3c_i2c_resource),
48 .resource = s3c_i2c_resource,
49};
50
Ben Dooks1aba8342008-10-31 16:14:55 +0000[diff] [blame]51static struct s3c2410_platform_i2c default_i2c_data0 __initdata = {
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]52 .flags = 0,
53 .slave_addr = 0x10,
Daniel Silverstonec564e6a2009-03-13 13:53:46 +0000[diff] [blame]54 .frequency = 100*1000,
Ben Dooksa192f712009-03-27 10:52:13 +0000[diff] [blame]55 .sda_delay = 100,
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]56};
57
58void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd)
59{
60 struct s3c2410_platform_i2c *npd;
61
62 if (!pd)
Ben Dooks1aba8342008-10-31 16:14:55 +0000[diff] [blame]63 pd = &default_i2c_data0;
Ben Dooks3e1b7762008-10-31 16:14:40 +0000[diff] [blame]64
65 npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
66 if (!npd)
67 printk(KERN_ERR "%s: no memory for platform data\n", __func__);
68 else if (!npd->cfg_gpio)
69 npd->cfg_gpio = s3c_i2c0_cfg_gpio;
70
71 s3c_device_i2c0.dev.platform_data = npd;
72}