diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-s3c24xx/gpio.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c index ec3a09c4d18..7cc6faec25d 100644 --- a/arch/arm/plat-s3c24xx/gpio.c +++ b/arch/arm/plat-s3c24xx/gpio.c @@ -122,6 +122,19 @@ void s3c2410_gpio_pullup(unsigned int pin, unsigned int to) EXPORT_SYMBOL(s3c2410_gpio_pullup); +int s3c2410_gpio_getpull(unsigned int pin) +{ + void __iomem *base = S3C24XX_GPIO_BASE(pin); + unsigned long offs = S3C2410_GPIO_OFFSET(pin); + + if (pin < S3C2410_GPIO_BANKB) + return -EINVAL; + + return (__raw_readl(base + 0x08) & (1L << offs)) ? 1 : 0; +} + +EXPORT_SYMBOL(s3c2410_gpio_getpull); + void s3c2410_gpio_setpin(unsigned int pin, unsigned int to) { void __iomem *base = S3C24XX_GPIO_BASE(pin); |