ARM: dts: vf-colibri: add basic supply regulators

Colibri modules need to be powered using the power pins 3V3 and
AVDD_AUDIO. Add fixed regulators which represent this power rails.
Potentially, those power rails could be switched on a carrier
board. A carrier board device tree could add a own regulator with
a GPIO, and reference that regulator in a vin-supply property of
those new module level system regulators.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi
index ff6f58ef35ceb2dbed00d7946ed67c8ab1d56015..ed4cfc55f3a848e0daa560a0ba01b8757a4ae6ef 100644 (file)
--- a/arch/arm/boot/dts/vf-colibri.dtsi
+++ b/arch/arm/boot/dts/vf-colibri.dtsi
@@ -48,14 +48,30 @@
                enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
                status = "disabled";
        };
+
+       reg_module_3v3: regulator-module-3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "+V3.3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
+
+       reg_module_3v3_avdd: regulator-module-3v3-avdd {
+               compatible = "regulator-fixed";
+               regulator-name = "+V3.3_AVDD_AUDIO";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
 };
 
 &adc0 {
        status = "okay";
+       vref-supply = <&reg_module_3v3_avdd>;
 };
 
 &adc1 {
        status = "okay";
+       vref-supply = <&reg_module_3v3_avdd>;
 };
 
 &can0 {
@@ -96,6 +112,7 @@
 
 &fec1 {
        phy-mode = "rmii";
+       phy-supply = <&reg_module_3v3>;
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_fec1>;
 };