[PATCH 2/2] ARM: dts: vf-colibri: add supply regulators

[Stefan Agner]

Colibri modules need to be powered using the power pins 3V3 and
AVDD. 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 <ste...@agner.ch>
---
 arch/arm/boot/dts/vf-colibri.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/vf-colibri.dtsi 
b/arch/arm/boot/dts/vf-colibri.dtsi
index ff6f58e..191506a 100644
--- a/arch/arm/boot/dts/vf-colibri.dtsi
+++ b/arch/arm/boot/dts/vf-colibri.dtsi
@@ -48,14 +48,31 @@
                enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
                status = "disabled";
        };
+
+       reg_sys_3v3: regulator-sys-3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "3V3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
+       };
+
+       reg_sys_3v3_avdd: regulator-sys-3v3-avdd {
+               compatible = "regulator-fixed";
+               regulator-name = "AVDD";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
 };
 
 &adc0 {
        status = "okay";
+       vref-supply = <&reg_sys_3v3_avdd>;
 };
 
 &adc1 {
        status = "okay";
+       vref-supply = <&reg_sys_3v3_avdd>;
 };
 
 &can0 {
@@ -96,6 +113,7 @@
 
 &fec1 {
        phy-mode = "rmii";
+       phy-supply = <&reg_sys_3v3>;
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_fec1>;
 };
-- 
2.7.1