[PATCH] gpio: pl061: implement gpio_ops::get_direction

[Ahmad Fatoum]

This makes gpioinfo on board that incorporate it more useful.

Signed-off-by: Ahmad Fatoum <ahmad at a3f.at>
---
 drivers/gpio/gpio-pl061.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index b9a8846dedaa..8dd9ca3bd5cd 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -84,7 +84,18 @@ static void pl061_set_value(struct gpio_chip *gc, unsigned offset, int value)
 	writeb(!!value << offset, chip->base + (1 << (offset + 2)));
 }
 
+static int pl061_get_direction(struct gpio_chip *gc, unsigned offset)
+{
+	struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
+
+	if (readb(chip->base + GPIODIR) & (1 << offset))
+		return GPIOF_DIR_OUT;
+
+	return GPIOF_DIR_IN;
+}
+
 static struct gpio_ops pl061_gpio_ops = {
+	.get_direction = pl061_get_direction,
 	.direction_input = pl061_direction_input,
 	.direction_output = pl061_direction_output,
 	.get = pl061_get_value,
-- 
2.30.0