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Commit 3484f1be authored by Linus Walleij's avatar Linus Walleij
Browse files

gpio: pl061: implement .get_direction() 



Implement this callback so that the driver reports correctly
the direction setting of each line.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 682366d5

drivers/gpio/gpio-pl061.c

+8 −0
Original line number Diff line number Diff line
@@ -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;