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Commit ad817297 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Walleij
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gpio: rcar: Implement .get_direction() callback 



Allow gpiolib to read back the current I/O direction configuration by
implementing the .get_direction() callback.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: default avatarSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 1c22a252

drivers/gpio/gpio-rcar.c

+8 −0
Original line number Diff line number Diff line
@@ -278,6 +278,13 @@ static void gpio_rcar_free(struct gpio_chip *chip, unsigned offset) 
	pm_runtime_put(&p->pdev->dev);

}



static int gpio_rcar_get_direction(struct gpio_chip *chip, unsigned int offset)

{

	struct gpio_rcar_priv *p = gpiochip_get_data(chip);



	return !(gpio_rcar_read(p, INOUTSEL) & BIT(offset));

}



static int gpio_rcar_direction_input(struct gpio_chip *chip, unsigned offset)

{

	gpio_rcar_config_general_input_output_mode(chip, offset, false);
@@ -461,6 +468,7 @@ static int gpio_rcar_probe(struct platform_device *pdev) 
	gpio_chip = &p->gpio_chip;

	gpio_chip->request = gpio_rcar_request;

	gpio_chip->free = gpio_rcar_free;

	gpio_chip->get_direction = gpio_rcar_get_direction;

	gpio_chip->direction_input = gpio_rcar_direction_input;

	gpio_chip->get = gpio_rcar_get;

	gpio_chip->direction_output = gpio_rcar_direction_output;