git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| c8d833bf MS |
1 | /* linux/arch/arm/plat-s3c/dev-i2c2.c |
| 2 | * | |
| 3 | * Copyright (c) 2010 Samsung Electronics Co., Ltd. | |
| 4 | * http://www.samsung.com/ | |
| 5 | * | |
| 6 | * S3C series device definition for i2c device 2 | |
| 7 | * | |
| 8 | * Based on plat-samsung/dev-i2c0.c | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License version 2 as | |
| 12 | * published by the Free Software Foundation. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/gfp.h> | |
| 16 | #include <linux/kernel.h> | |
| 17 | #include <linux/string.h> | |
| 18 | #include <linux/platform_device.h> | |
| 19 | ||
| 20 | #include <mach/irqs.h> | |
| 21 | #include <mach/map.h> | |
| 22 | ||
| 23 | #include <plat/regs-iic.h> | |
| 24 | #include <plat/iic.h> | |
| 25 | #include <plat/devs.h> | |
| 26 | #include <plat/cpu.h> | |
| 27 | ||
| 28 | static struct resource s3c_i2c_resource[] = { | |
| 29 | [0] = { | |
| 30 | .start = S3C_PA_IIC2, | |
| 31 | .end = S3C_PA_IIC2 + SZ_4K - 1, | |
| 32 | .flags = IORESOURCE_MEM, | |
| 33 | }, | |
| 34 | [1] = { | |
| 023c75c7 KP |
35 | .start = IRQ_IIC2, |
| 36 | .end = IRQ_IIC2, | |
| c8d833bf MS |
37 | .flags = IORESOURCE_IRQ, |
| 38 | }, | |
| 39 | }; | |
| 40 | ||
| 41 | struct platform_device s3c_device_i2c2 = { | |
| 42 | .name = "s3c2410-i2c", | |
| 43 | .id = 2, | |
| 44 | .num_resources = ARRAY_SIZE(s3c_i2c_resource), | |
| 45 | .resource = s3c_i2c_resource, | |
| 46 | }; | |
| 47 | ||
| 48 | static struct s3c2410_platform_i2c default_i2c_data2 __initdata = { | |
| 49 | .flags = 0, | |
| 50 | .bus_num = 2, | |
| 51 | .slave_addr = 0x10, | |
| 52 | .frequency = 100*1000, | |
| 53 | .sda_delay = 100, | |
| 54 | }; | |
| 55 | ||
| 56 | void __init s3c_i2c2_set_platdata(struct s3c2410_platform_i2c *pd) | |
| 57 | { | |
| 58 | struct s3c2410_platform_i2c *npd; | |
| 59 | ||
| 60 | if (!pd) | |
| 61 | pd = &default_i2c_data2; | |
| 62 | ||
| 63 | npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL); | |
| 64 | if (!npd) | |
| 65 | printk(KERN_ERR "%s: no memory for platform data\n", __func__); | |
| 66 | else if (!npd->cfg_gpio) | |
| 67 | npd->cfg_gpio = s3c_i2c2_cfg_gpio; | |
| 68 | ||
| 69 | s3c_device_i2c2.dev.platform_data = npd; | |
| 70 | } |