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 <[email protected]> --- 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 | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi index ff6f58e..dcc73b7 100644 --- a/arch/arm/boot/dts/vf-colibri.dtsi +++ b/arch/arm/boot/dts/vf-colibri.dtsi @@ -48,14 +48,32 @@ 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>; + regulator-always-on; + }; + + 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>; + regulator-always-on; + }; }; &adc0 { status = "okay"; + vref-supply = <®_module_3v3_avdd>; }; &adc1 { status = "okay"; + vref-supply = <®_module_3v3_avdd>; }; &can0 { @@ -96,6 +114,7 @@ &fec1 { phy-mode = "rmii"; + phy-supply = <®_module_3v3>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_fec1>; }; -- 2.7.1
