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Subject[PATCH 2/2] pinctrl: nomadik: implement .get_direction()
Date
This makes the Nomadik gpiochip support the .get_direction()
callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/nomadik/pinctrl-nomadik.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)

diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index a121c0c06234..76a08b96cc67 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -861,6 +861,20 @@ static void nmk_gpio_latent_irq_handler(struct irq_desc *desc)

/* I/O Functions */

+static int nmk_gpio_get_dir(struct gpio_chip *chip, unsigned offset)
+{
+ struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip);
+ int dir;
+
+ clk_enable(nmk_chip->clk);
+
+ dir = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & BIT(offset));
+
+ clk_disable(nmk_chip->clk);
+
+ return dir;
+}
+
static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset)
{
struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip);
@@ -1220,6 +1234,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
chip = &nmk_chip->chip;
chip->request = gpiochip_generic_request;
chip->free = gpiochip_generic_free;
+ chip->get_direction = nmk_gpio_get_dir;
chip->direction_input = nmk_gpio_make_input;
chip->get = nmk_gpio_get_input;
chip->direction_output = nmk_gpio_make_output;
--
2.4.11
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