diff options
Diffstat (limited to 'arch/arm/plat-samsung/dev-i2c4.c')
-rw-r--r-- | arch/arm/plat-samsung/dev-i2c4.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/dev-i2c4.c b/arch/arm/plat-samsung/dev-i2c4.c new file mode 100644 index 00000000000..df2159e2daa --- /dev/null +++ b/arch/arm/plat-samsung/dev-i2c4.c @@ -0,0 +1,68 @@ +/* linux/arch/arm/plat-samsung/dev-i2c4.c + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P series device definition for i2c device 3 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/gfp.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/platform_device.h> + +#include <mach/irqs.h> +#include <mach/map.h> + +#include <plat/regs-iic.h> +#include <plat/iic.h> +#include <plat/devs.h> +#include <plat/cpu.h> + +static struct resource s3c_i2c_resource[] = { + [0] = { + .start = S3C_PA_IIC4, + .end = S3C_PA_IIC4 + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_IIC4, + .end = IRQ_IIC4, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device s3c_device_i2c4 = { + .name = "s3c2440-i2c", + .id = 4, + .num_resources = ARRAY_SIZE(s3c_i2c_resource), + .resource = s3c_i2c_resource, +}; + +static struct s3c2410_platform_i2c default_i2c_data4 __initdata = { + .flags = 0, + .bus_num = 4, + .slave_addr = 0x10, + .frequency = 100*1000, + .sda_delay = 100, +}; + +void __init s3c_i2c4_set_platdata(struct s3c2410_platform_i2c *pd) +{ + struct s3c2410_platform_i2c *npd; + + if (!pd) + pd = &default_i2c_data4; + + npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL); + if (!npd) + printk(KERN_ERR "%s: no memory for platform data\n", __func__); + else if (!npd->cfg_gpio) + npd->cfg_gpio = s3c_i2c4_cfg_gpio; + + s3c_device_i2c4.dev.platform_data = npd; +} |