arm64: dts: rockchip: add GRF GPIO controller to rk3328

Adding a GRF GPIO controller labled "grf_gpio" to rk3328, currently
providing access to the GPIO_MUTE pin, which is manupulated by the
GRF_SOC_CON10 register.

The GPIO_MUTE pin is referred to as <&grf_gpio 0>.

Signed-off-by: Levin Du <djw@t-chip.com.cn>
[dropped default-status disabled]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 3f5a2944300fe2441f87ec1ac144d771f2cddbfe..d3ef6566325e72d9e47a572117c6d7c95c43400c 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -249,6 +249,12 @@
                        status = "disabled";
                };
 
+               grf_gpio: grf-gpio {
+                       compatible = "rockchip,rk3328-grf-gpio";
+                       gpio-controller;
+                       #gpio-cells = <2>;
+               };
+
                power: power-controller {
                        compatible = "rockchip,rk3328-power-controller";
                        #power-domain-cells = <1>;
@@ -274,7 +280,6 @@
                        mode-bootloader = <BOOT_FASTBOOT>;
                        mode-loader = <BOOT_BL_DOWNLOAD>;
                };
-
        };
 
        uart0: serial@ff110000 {