From 62e08f25bd09b088f266ea6fc34d2f596d83c04e Mon Sep 17 00:00:00 2001 From: Aaron Sierra Date: Tue, 31 Mar 2015 10:11:47 -0500 Subject: [PATCH] gpio: ich: Implement get_direction function Allow the kernel to query the driver for a GPIO's pin direction. Signed-off-by: Aaron Sierra Signed-off-by: Linus Walleij --- drivers/gpio/gpio-ich.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c index 7818cd1453ae..4ba7ed502131 100644 --- a/drivers/gpio/gpio-ich.c +++ b/drivers/gpio/gpio-ich.c @@ -173,6 +173,11 @@ static bool ichx_gpio_check_available(struct gpio_chip *gpio, unsigned nr) return !!(ichx_priv.use_gpio & (1 << (nr / 32))); } +static int ichx_gpio_get_direction(struct gpio_chip *gpio, unsigned nr) +{ + return ichx_read_bit(GPIO_IO_SEL, nr) ? GPIOF_DIR_IN : GPIOF_DIR_OUT; +} + static int ichx_gpio_direction_input(struct gpio_chip *gpio, unsigned nr) { /* @@ -286,6 +291,7 @@ static void ichx_gpiolib_setup(struct gpio_chip *chip) ichx_priv.desc->get : ichx_gpio_get; chip->set = ichx_gpio_set; + chip->get_direction = ichx_gpio_get_direction; chip->direction_input = ichx_gpio_direction_input; chip->direction_output = ichx_gpio_direction_output; chip->base = modparam_gpiobase; -- 2.34.1