ARM: dts: rockchip: Add the iodomains for the Rock2 SOM

Add the IO domain configuration for the Rock2 SOM and model the fixed
regulator used as the vqmmc for the EMMC device.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm/boot/dts/rk3288-rock2-som.dtsi b/arch/arm/boot/dts/rk3288-rock2-som.dtsi
index 1ece66f..e1ee9f9 100644 (file)
--- a/arch/arm/boot/dts/rk3288-rock2-som.dtsi
+++ b/arch/arm/boot/dts/rk3288-rock2-som.dtsi
@@ -61,6 +61,31 @@
                clock-output-names = "ext_gmac";
        };
 
+       io_domains: io-domains {
+               compatible = "rockchip,rk3288-io-voltage-domain";
+               rockchip,grf = <&grf>;
+
+               audio-supply = <&vcc_io>;
+               bb-supply = <&vcc_io>;
+               dvp-supply = <&vcc_18>;
+               flash0-supply = <&vcc_flash>;
+               flash1-supply = <&vccio_pmu>;
+               gpio30-supply = <&vccio_pmu>;
+               gpio1830 = <&vcc_io>;
+               lcdc-supply = <&vcc_io>;
+               sdcard-supply = <&vccio_sd>;
+               wifi-supply = <&vcc_18>;
+       };
+
+       vcc_flash: flash-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_sys";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               startup-delay-us = <150>;
+               vin-supply = <&vcc_io>;
+       };
+
        vcc_sys: vsys-regulator {
                compatible = "regulator-fixed";
                regulator-name = "vcc_sys";
@@ -85,6 +110,7 @@
        pinctrl-names = "default";
        pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
        vmmc-supply = <&vcc_io>;
+       vqmmc-supply = <&vcc_flash>;
        status = "okay";
 };