gpio: renesas: Add R-Car Gen4 support

Add support for the GPIO controller block in the R-Car Gen4 family.

It has a General Input Enable Register (INEN), whose reset state is to
have all inputs disabled.

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 138801850d3e87819e6c53d27fdf205ae64ed5c8..9ffb4a56258ebf8159aff41f9614a5f7ae068270 100644 (file)
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -195,6 +195,7 @@ static const struct udevice_id rcar_gpio_ids[] = {
        { .compatible = "renesas,gpio-r8a779a0", .data = RCAR_GPIO_HAS_INEN },
        { .compatible = "renesas,rcar-gen2-gpio" },
        { .compatible = "renesas,rcar-gen3-gpio" },
+       { .compatible = "renesas,rcar-gen4-gpio", .data = RCAR_GPIO_HAS_INEN },
        { /* sentinel */ }
 };