From 5eda288fa96cac0b0f25c90249f5347c6c62da0e Mon Sep 17 00:00:00 2001 From: Kyungmin Park Date: Tue, 17 Nov 2009 08:41:21 +0100 Subject: [PATCH] ARM: S5PC1xx: add platform helpers for i2c adapter devices Samsung S5PC100 has I2C bus controller compatible with the one known from previous SoCs series. Add required platform setup and support code that it can be used with s3c2410-i2c driver. Signed-off-by: Kyungmin Park Signed-off-by: Marek Szyprowski Signed-off-by: Ben Dooks --- arch/arm/mach-s5pc100/cpu.c | 4 ++++ arch/arm/plat-s5pc1xx/Kconfig | 4 ++-- arch/arm/plat-s5pc1xx/Makefile | 4 ++-- arch/arm/plat-s5pc1xx/setup-i2c0.c | 7 ++++++- arch/arm/plat-s5pc1xx/setup-i2c1.c | 7 ++++++- 5 files changed, 20 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-s5pc100/cpu.c b/arch/arm/mach-s5pc100/cpu.c index a23ca57..1319e3d 100644 --- a/arch/arm/mach-s5pc100/cpu.c +++ b/arch/arm/mach-s5pc100/cpu.c @@ -75,6 +75,10 @@ void __init s5pc100_map_io(void) iotable_init(s5pc100_iodesc, ARRAY_SIZE(s5pc100_iodesc)); /* initialise device information early */ + + /* the i2c devices are directly compatible with s3c2440 */ + s3c_i2c0_setname("s3c2440-i2c"); + s3c_i2c1_setname("s3c2440-i2c"); } void __init s5pc100_init_clocks(int xtal) diff --git a/arch/arm/plat-s5pc1xx/Kconfig b/arch/arm/plat-s5pc1xx/Kconfig index 6ac48a6..1fc25b9 100644 --- a/arch/arm/plat-s5pc1xx/Kconfig +++ b/arch/arm/plat-s5pc1xx/Kconfig @@ -42,7 +42,7 @@ config S5PC1XX_SETUP_FB_24BPP help Common setup code for S5PC1XX with an 24bpp RGB display helper. -config S5PC100_SETUP_I2C0 +config S5PC1XX_SETUP_I2C0 bool default y help @@ -51,7 +51,7 @@ config S5PC100_SETUP_I2C0 Note, currently since i2c0 is always compiled, this setup helper is always compiled with it. -config S5PC100_SETUP_I2C1 +config S5PC1XX_SETUP_I2C1 bool help Common setup code for i2c bus 1. diff --git a/arch/arm/plat-s5pc1xx/Makefile b/arch/arm/plat-s5pc1xx/Makefile index 3d2ac71..40ee957 100644 --- a/arch/arm/plat-s5pc1xx/Makefile +++ b/arch/arm/plat-s5pc1xx/Makefile @@ -26,5 +26,5 @@ obj-$(CONFIG_CPU_S5PC100_CLOCK) += s5pc100-clock.o obj-$(CONFIG_S5P_GPIO_CFG_S5PC1XX) += gpio-config.o obj-$(CONFIG_S5PC1XX_SETUP_FB_24BPP) += setup-fb-24bpp.o -obj-$(CONFIG_S5PC100_SETUP_I2C0) += setup-i2c0.o -obj-$(CONFIG_S5PC100_SETUP_I2C1) += setup-i2c1.o +obj-$(CONFIG_S5PC1XX_SETUP_I2C0) += setup-i2c0.o +obj-$(CONFIG_S5PC1XX_SETUP_I2C1) += setup-i2c1.o diff --git a/arch/arm/plat-s5pc1xx/setup-i2c0.c b/arch/arm/plat-s5pc1xx/setup-i2c0.c index 3d00c02..5e4a7c3 100644 --- a/arch/arm/plat-s5pc1xx/setup-i2c0.c +++ b/arch/arm/plat-s5pc1xx/setup-i2c0.c @@ -17,9 +17,14 @@ struct platform_device; /* don't need the contents */ +#include #include +#include void s3c_i2c0_cfg_gpio(struct platform_device *dev) { - /* Pin configuration would be needed */ + s3c_gpio_cfgpin(S5PC100_GPD(3), S3C_GPIO_SFN(2)); + s3c_gpio_setpull(S5PC100_GPD(3), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPD(4), S3C_GPIO_SFN(2)); + s3c_gpio_setpull(S5PC100_GPD(4), S3C_GPIO_PULL_UP); } diff --git a/arch/arm/plat-s5pc1xx/setup-i2c1.c b/arch/arm/plat-s5pc1xx/setup-i2c1.c index c8f3ca4..a0a8b4a 100644 --- a/arch/arm/plat-s5pc1xx/setup-i2c1.c +++ b/arch/arm/plat-s5pc1xx/setup-i2c1.c @@ -17,9 +17,14 @@ struct platform_device; /* don't need the contents */ +#include #include +#include void s3c_i2c1_cfg_gpio(struct platform_device *dev) { - /* Pin configuration would be needed */ + s3c_gpio_cfgpin(S5PC100_GPD(5), S3C_GPIO_SFN(2)); + s3c_gpio_setpull(S5PC100_GPD(5), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPD(6), S3C_GPIO_SFN(2)); + s3c_gpio_setpull(S5PC100_GPD(6), S3C_GPIO_PULL_UP); } -- 2.7.4