ARM: dts: imx7-colibri: add Carrier Board 3.3V/5V regulators

Model the Carrier Board power distribution by adding a fixed 3.3V
and 5V regulator. The 3.3V regulator is connected to the backlight
as well as the display supply. The 5V regulator is used to supply
USB VBUS.

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

2 files changed, 18 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
index 7a98a45a0d95..18bebd6d8d47 100644
--- a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
@@ -48,6 +48,7 @@
         panel: panel {
                 compatible = "edt,et057090dhu";
                 backlight = <&bl>;
+                power-supply = <&reg_3v3>;
 
                 port {
                         panel_in: endpoint {
@@ -55,11 +56,27 @@
                         };
                 };
         };
+
+        reg_3v3: regulator-3v3 {
+                compatible = "regulator-fixed";
+                regulator-name = "3.3V";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+        };
+
+        reg_5v0: regulator-5v0 {
+                compatible = "regulator-fixed";
+                regulator-name = "5V";
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+        };
 };
 
 &bl {
         brightness-levels = <0 4 8 16 32 64 128 255>;
         default-brightness-level = <6>;
+        power-supply = <&reg_3v3>;
+
         status = "okay";
 };
 
diff --git a/arch/arm/boot/dts/imx7d-colibri-eval-v3.dts b/arch/arm/boot/dts/imx7d-colibri-eval-v3.dts
index bd01d2cc642d..a608a14d8c85 100644
--- a/arch/arm/boot/dts/imx7d-colibri-eval-v3.dts
+++ b/arch/arm/boot/dts/imx7d-colibri-eval-v3.dts
@@ -57,6 +57,7 @@
                 regulator-min-microvolt = <5000000>;
                 regulator-max-microvolt = <5000000>;
                 gpio = <&gpio4 7 GPIO_ACTIVE_LOW>;
+                vin-supply = <&reg_5v0>;
         };
 };