dt-bindings: gpio: rcar: Add r8a779a0 support

Document the compatible value for the GPIO block in the Renesas R-Car
V3U (R8A779A0) SoC.

While this GPIO block is mostly compatible with GPIO blocks on R-Car
Gen3 SoCs, there are small differences, and one of the new registers
needs to be configured differently from its initial reset state.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

diff --git a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
index 5026662e45081b6c2c1959db44a8a4427d572400..f2541739ee3b9f7cd4873a312c61a41fd384d7db 100644 (file)
--- a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
@@ -48,6 +48,9 @@ properties:
               - renesas,gpio-r8a77995     # R-Car D3
           - const: renesas,rcar-gen3-gpio # R-Car Gen3 or RZ/G2
 
+      - items:
+          - const: renesas,gpio-r8a779a0  # R-Car V3U
+
   reg:
     maxItems: 1