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Subject[PATCH v3 2/3] ARM: dts: vf-colibri: add basic supply regulators
Date
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>
---
Changes since v2:
- remove regulator-always-on

Changes since v1:
- Add module prefix to avoid namespace issue with Carrier Board regulators
- Name the regulators according to schematics

arch/arm/boot/dts/vf-colibri.dtsi | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi
index ff6f58e..ed4cfc5 100644
--- 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>;
};
--
2.7.1
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