diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-s3c2443/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2443/s3c2443.c | 7 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/Kconfig | 6 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/gpio-config.c | 42 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h | 2 |
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 */ |