ARM: SAMSUNG: Add the missed s3c_gpio_getpull() API

This patch adds the s3c_gpio_getpull() API that has been missed in the
plat-samsung/gpio-config.c and actullay there is its extern declaration
in plat/gpio-cfg.h.

Signed-off-by: Daein Moon <moon9124@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

2 files changed, 25 insertions, 0 deletions

diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c
index 8a372110a850..b732b773b9af 100644
--- a/arch/arm/plat-samsung/gpio-config.c
+++ b/arch/arm/plat-samsung/gpio-config.c
@@ -111,6 +111,25 @@ int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull)
 }
 EXPORT_SYMBOL(s3c_gpio_setpull);
 
+s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
+{
+        struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
+        unsigned long flags;
+        int offset;
+        u32 pup = 0;
+
+        if (chip) {
+                offset = pin - chip->chip.base;
+
+                s3c_gpio_lock(chip, flags);
+                pup = s3c_gpio_do_getpull(chip, offset);
+                s3c_gpio_unlock(chip, flags);
+        }
+
+        return (__force s3c_gpio_pull_t)pup;
+}
+EXPORT_SYMBOL(s3c_gpio_getpull);
+
 #ifdef CONFIG_S3C_GPIO_CFG_S3C24XX
 int s3c_gpio_setcfg_s3c24xx_a(struct s3c_gpio_chip *chip,
                               unsigned int off, unsigned int cfg)
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 3e21c75feefa..8fd65d8b5863 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h
@@ -42,6 +42,12 @@ static inline int s3c_gpio_do_setpull(struct s3c_gpio_chip *chip,
         return (chip->config->set_pull)(chip, off, pull);
 }
 
+static inline s3c_gpio_pull_t s3c_gpio_do_getpull(struct s3c_gpio_chip *chip,
+                                                  unsigned int off)
+{
+        return chip->config->get_pull(chip, off);
+}
+
 /**
  * s3c_gpio_setcfg_s3c24xx - S3C24XX style GPIO configuration.
  * @chip: The gpio chip that is being configured.