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Diffstat (limited to 'arch/arm/plat-samsung/gpio-config.c')
-rw-r--r--arch/arm/plat-samsung/gpio-config.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c
index e3d41eaed1f..b732b773b9a 100644
--- a/arch/arm/plat-samsung/gpio-config.c
+++ b/arch/arm/plat-samsung/gpio-config.c
@@ -41,6 +41,37 @@ int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
}
EXPORT_SYMBOL(s3c_gpio_cfgpin);
+int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
+ unsigned int cfg)
+{
+ int ret;
+
+ for (; nr > 0; nr--, start++) {
+ ret = s3c_gpio_cfgpin(start, cfg);
+ if (ret != 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
+
+int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
+ unsigned int cfg, s3c_gpio_pull_t pull)
+{
+ int ret;
+
+ for (; nr > 0; nr--, start++) {
+ s3c_gpio_setpull(start, pull);
+ ret = s3c_gpio_cfgpin(start, cfg);
+ if (ret != 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
+
unsigned s3c_gpio_getcfg(unsigned int pin)
{
struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
@@ -80,6 +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)