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-rw-r--r--arch/arm/mach-s3c2443/Kconfig1
-rw-r--r--arch/arm/mach-s3c2443/s3c2443.c7
-rw-r--r--arch/arm/plat-samsung/Kconfig6
-rw-r--r--arch/arm/plat-samsung/gpio-config.c42
-rw-r--r--arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h2
5 files changed, 57 insertions, 1 deletions
diff --git a/arch/arm/mach-s3c2443/Kconfig b/arch/arm/mach-s3c2443/Kconfig
index 8814031516ce..d8eb86823df7 100644
--- a/arch/arm/mach-s3c2443/Kconfig
+++ b/arch/arm/mach-s3c2443/Kconfig
@@ -10,6 +10,7 @@ config CPU_S3C2443
select CPU_LLSERIAL_S3C2440
select SAMSUNG_CLKSRC
select S3C2443_CLOCK
+ select S3C_GPIO_PULL_S3C2443
help
Support for the S3C2443 SoC from the S3C24XX line
diff --git a/arch/arm/mach-s3c2443/s3c2443.c b/arch/arm/mach-s3c2443/s3c2443.c
index 33d18dd1ebd5..e6a28ba52c7d 100644
--- a/arch/arm/mach-s3c2443/s3c2443.c
+++ b/arch/arm/mach-s3c2443/s3c2443.c
@@ -16,6 +16,7 @@
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
+#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/sysdev.h>
@@ -32,6 +33,9 @@
#include <mach/regs-s3c2443-clock.h>
#include <mach/reset.h>
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
#include <plat/s3c2443.h>
#include <plat/devs.h>
#include <plat/cpu.h>
@@ -86,6 +90,9 @@ void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
void __init s3c2443_map_io(void)
{
+ s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_s3c2443;
+ s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_s3c2443;
+
iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
}
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index dcd6eff4ee53..4ecb15531b92 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -95,6 +95,12 @@ config S3C_GPIO_PULL_UPDOWN
help
Internal configuration to enable the correct GPIO pull helper
+config S3C_GPIO_PULL_S3C2443
+ bool
+ select S3C_GPIO_PULL_UPDOWN
+ help
+ Internal configuration to enable the correct GPIO pull helper for S3C2443-style GPIO
+
config S3C_GPIO_PULL_DOWN
bool
help
diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c
index 0aa32f242ee4..1c0b0401594b 100644
--- a/arch/arm/plat-samsung/gpio-config.c
+++ b/arch/arm/plat-samsung/gpio-config.c
@@ -278,6 +278,48 @@ s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip,
pup &= 0x3;
return (__force s3c_gpio_pull_t)pup;
}
+
+#ifdef CONFIG_S3C_GPIO_PULL_S3C2443
+int s3c_gpio_setpull_s3c2443(struct s3c_gpio_chip *chip,
+ unsigned int off, s3c_gpio_pull_t pull)
+{
+ switch (pull) {
+ case S3C_GPIO_PULL_NONE:
+ pull = 0x01;
+ break;
+ case S3C_GPIO_PULL_UP:
+ pull = 0x00;
+ break;
+ case S3C_GPIO_PULL_DOWN:
+ pull = 0x02;
+ break;
+ }
+ return s3c_gpio_setpull_updown(chip, off, pull);
+}
+
+s3c_gpio_pull_t s3c_gpio_getpull_s3c2443(struct s3c_gpio_chip *chip,
+ unsigned int off)
+{
+ s3c_gpio_pull_t pull;
+
+ pull = s3c_gpio_getpull_updown(chip, off);
+
+ switch (pull) {
+ case 0x00:
+ pull = S3C_GPIO_PULL_UP;
+ break;
+ case 0x01:
+ case 0x03:
+ pull = S3C_GPIO_PULL_NONE;
+ break;
+ case 0x02:
+ pull = S3C_GPIO_PULL_DOWN;
+ break;
+ }
+
+ return pull;
+}
+#endif
#endif
#if defined(CONFIG_S3C_GPIO_PULL_UP) || defined(CONFIG_S3C_GPIO_PULL_DOWN)
diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
index 0d2c5703f1ee..5603db0b79bc 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
@@ -244,7 +244,7 @@ extern int s3c_gpio_setpull_s3c2443(struct s3c_gpio_chip *chip,
* This helper function reads the state of the pull-{up,down} resistor for the
* given GPIO in the same case as s3c_gpio_setpull_upown.
*/
-extern s3c_gpio_pull_t s3c_gpio_getpull_s3c24xx(struct s3c_gpio_chip *chip,
+extern s3c_gpio_pull_t s3c_gpio_getpull_s3c2443(struct s3c_gpio_chip *chip,
unsigned int off);
#endif /* __PLAT_GPIO_CFG_HELPERS_H */