diff options
| -rw-r--r-- | drivers/gpio/gpio-samsung.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index a006f0db15af..15be3d9aebe9 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -596,7 +596,10 @@ static int samsung_gpiolib_4bit_input(struct gpio_chip *chip, unsigned long con; con = __raw_readl(base + GPIOCON_OFF); - con &= ~(0xf << con_4bit_shift(offset)); + if (ourchip->bitmap_gpio_int & BIT(offset)) + con |= 0xf << con_4bit_shift(offset); + else + con &= ~(0xf << con_4bit_shift(offset)); __raw_writel(con, base + GPIOCON_OFF); gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con); @@ -1081,6 +1084,8 @@ static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip if ((base != NULL) && (chip->base == NULL)) chip->base = base + ((i) * 0x20); + chip->bitmap_gpio_int = 0; + samsung_gpiolib_add(chip); } } |