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authorKyungmin Park <kyungmin.park@samsung.com>2009-11-17 08:41:21 +0100
committerBen Dooks <ben-linux@fluff.org>2009-12-01 01:33:16 +0000
commit5eda288fa96cac0b0f25c90249f5347c6c62da0e (patch)
treea1d6ba628da20196248e548b65bfbad5cd4ac983 /arch/arm/plat-s5pc1xx
parent079b03241765f0a31c4bfdefd277452399dbafc9 (diff)
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 <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s5pc1xx')
-rw-r--r--arch/arm/plat-s5pc1xx/Kconfig4
-rw-r--r--arch/arm/plat-s5pc1xx/Makefile4
-rw-r--r--arch/arm/plat-s5pc1xx/setup-i2c0.c7
-rw-r--r--arch/arm/plat-s5pc1xx/setup-i2c1.c7
4 files changed, 16 insertions, 6 deletions
diff --git a/arch/arm/plat-s5pc1xx/Kconfig b/arch/arm/plat-s5pc1xx/Kconfig
index 6ac48a6fba7..1fc25b9f224 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 3d2ac7150b1..40ee9571fb0 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 3d00c025fff..5e4a7c3a231 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 <linux/gpio.h>
#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
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 c8f3ca42f51..a0a8b4ae6ad 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 <linux/gpio.h>
#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
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);
}