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ARM: dts: at91: Describe regulators on at91sam9g20ek

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The at91sam9g20ek has no software controllable regulators, only some fixed
discrete regulators, but they are there and currently the wm8731 driver
does try to use them. Show the supplies in the DT and map them for the
wm8731 so things start up cleanly.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220404102806.581374-3-broonie@kernel.org
This commit is contained in:
Mark Brown 2022-04-04 11:28:06 +01:00 committed by Nicolas Ferre
parent 0e486fe341
commit afca68de40
1 changed files with 37 additions and 0 deletions
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37
arch/arm/boot/dts/at91sam9g20ek_common.dtsi
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@ -214,6 +214,7 @@
24c512@50 {
compatible = "atmel,24c512";
reg = <0x50>;
vcc-supply = <&reg_3v3>;
};
wm8731: wm8731@1b {
@ -225,6 +226,11 @@
clock-names = "mclk";
assigned-clocks = <&pmc PMC_TYPE_SYSTEM 8>;
assigned-clock-rates = <12000000>;
HPVDD-supply = <&vcc_dac>;
AVDD-supply = <&vcc_dac>;
DCVDD-supply = <&reg_3v3>;
DBVDD-supply = <&reg_3v3>;
};
};
@ -260,4 +266,35 @@
atmel,ssc-controller = <&ssc0>;
atmel,audio-codec = <&wm8731>;
};
reg_5v: fixedregulator0 {
compatible = "regulator-fixed";
regulator-name = "5V";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
};
reg_3v3: fixedregulator1 {
compatible = "regulator-fixed";
regulator-name = "3V3";
vin-supply = <&reg_5v>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
reg_1v: fixedregulator2 {
compatible = "regulator-fixed";
regulator-name = "1V";
vin-supply = <&reg_5v>;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
};
vcc_dac: fixedregulator3 {
compatible = "regulator-fixed";
regulator-name = "VCC_DAC";
vin-supply = <&reg_3v3>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
};