From 3484f1be2dbf520ad150a0be11f04464b930a4e6 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 28 Apr 2016 13:18:59 +0200 Subject: [PATCH] gpio: pl061: implement .get_direction() Implement this callback so that the driver reports correctly the direction setting of each line. Signed-off-by: Linus Walleij --- drivers/gpio/gpio-pl061.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 70eb9ada002e..6e3c1430616f 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -61,6 +61,13 @@ struct pl061_gpio { #endif }; +static int pl061_get_direction(struct gpio_chip *gc, unsigned offset) +{ + struct pl061_gpio *chip = gpiochip_get_data(gc); + + return !(readb(chip->base + GPIODIR) & BIT(offset)); +} + static int pl061_direction_input(struct gpio_chip *gc, unsigned offset) { struct pl061_gpio *chip = gpiochip_get_data(gc); @@ -315,6 +322,7 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) chip->gc.free = gpiochip_generic_free; } + chip->gc.get_direction = pl061_get_direction; chip->gc.direction_input = pl061_direction_input; chip->gc.direction_output = pl061_direction_output; chip->gc.get = pl061_get_value; -- 2.20.1