arm64: dts: mediatek: x20: Add pinmux support for UART1

Add pinmux support for UART1 on MediatekX20 Development board based
on Mediatek MT6797 SoC.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dts b/arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dts
index 742938a..13939d5 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dts
+++ b/arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dts
@@ -30,4 +30,6 @@
 
 &uart1 {
        status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart1_pins_a>;
 };

diff --git a/arch/arm64/boot/dts/mediatek/mt6797.dtsi b/arch/arm64/boot/dts/mediatek/mt6797.dtsi
index 231230d..a64bb84 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt6797.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt6797.dtsi
@@ -141,6 +141,13 @@
                            "iocfgr", "iocfgt";
                gpio-controller;
                #gpio-cells = <2>;
+
+               uart1_pins_a: uart1 {
+                       pins1 {
+                               pinmux = <MT6797_GPIO232__FUNC_URXD1>,
+                                        <MT6797_GPIO233__FUNC_UTXD1>;
+                       };
+               };
        };
 
        scpsys: scpsys@10006000 {