git://bbs.cooldavid.org / net-next-2.6.git / blame
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1 | /* linux/arch/arm/plat-s3c/dev-i2c0.c |
| 2 | * | |
| e02f8664 | 3 | * Copyright 2008-2009 Simtec Electronics |
| 3e1b776c BD |
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 | ||
| 5a0e3ad6 | 14 | #include <linux/gfp.h> |
| 3e1b776c BD |
15 | #include <linux/kernel.h> |
| 16 | #include <linux/string.h> | |
| 17 | #include <linux/platform_device.h> | |
| 18 | ||
| 80b02c17 | 19 | #include <mach/irqs.h> |
| 3e1b776c BD |
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 | ||
| 27 | static 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 | ||
| 40 | struct platform_device s3c_device_i2c0 = { | |
| 41 | .name = "s3c2410-i2c", | |
| 1aba834d BD |
42 | #ifdef CONFIG_S3C_DEV_I2C1 |
| 43 | .id = 0, | |
| 44 | #else | |
| 3e1b776c | 45 | .id = -1, |
| 1aba834d | 46 | #endif |
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47 | .num_resources = ARRAY_SIZE(s3c_i2c_resource), |
| 48 | .resource = s3c_i2c_resource, | |
| 49 | }; | |
| 50 | ||
| 1aba834d | 51 | static struct s3c2410_platform_i2c default_i2c_data0 __initdata = { |
| 3e1b776c BD |
52 | .flags = 0, |
| 53 | .slave_addr = 0x10, | |
| c564e6ae | 54 | .frequency = 100*1000, |
| a192f715 | 55 | .sda_delay = 100, |
| 3e1b776c BD |
56 | }; |
| 57 | ||
| 58 | void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd) | |
| 59 | { | |
| 60 | struct s3c2410_platform_i2c *npd; | |
| 61 | ||
| 62 | if (!pd) | |
| 1aba834d | 63 | pd = &default_i2c_data0; |
| 3e1b776c BD |
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 | } |