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Subject[PATCH] gpio: wcove-gpio: add get_direction method
This patch adds .get_direction method for the gpio_chip structure
of the wcove_gpio driver.

Signed-off-by: Bin Gao <bin.gao@intel.com>
---
drivers/gpio/gpio-wcove.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/gpio/gpio-wcove.c b/drivers/gpio/gpio-wcove.c
index f5c88df..e11d6a3 100644
--- a/drivers/gpio/gpio-wcove.c
+++ b/drivers/gpio/gpio-wcove.c
@@ -164,6 +164,19 @@ static int wcove_gpio_dir_out(struct gpio_chip *chip, unsigned int gpio,
CTLO_OUTPUT_SET | value);
}

+static int wcove_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)
+{
+ struct wcove_gpio *wg = gpiochip_get_data(chip);
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(wg->regmap, to_reg(gpio, CTRL_OUT), &val);
+ if (ret)
+ return ret;
+
+ return !(val & CTLO_DIR_OUT);
+}
+
static int wcove_gpio_get(struct gpio_chip *chip, unsigned int gpio)
{
struct wcove_gpio *wg = gpiochip_get_data(chip);
@@ -394,6 +407,7 @@ static int wcove_gpio_probe(struct platform_device *pdev)
wg->chip.label = KBUILD_MODNAME;
wg->chip.direction_input = wcove_gpio_dir_in;
wg->chip.direction_output = wcove_gpio_dir_out;
+ wg->chip.get_direction = wcove_gpio_get_direction;
wg->chip.get = wcove_gpio_get;
wg->chip.set = wcove_gpio_set;
wg->chip.set_single_ended = wcove_gpio_set_single_ended,
--
1.9.1
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