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authorMark Brown <broonie@kernel.org>2022-04-04 11:28:06 +0100
committerNicolas Ferre <nicolas.ferre@microchip.com>2022-04-13 18:42:50 +0200
commitafca68de401fceb1d52e1b6daec78e8b09f7f0a2 (patch)
treefa8314c3ff19b8808627aaa166836b58acbf3389 /arch/arm
parent0e486fe341fabd8e583f3d601a874cd394979c45 (diff)
ARM: dts: at91: Describe regulators on at91sam9g20ek
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
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/dts/at91sam9g20ek_common.dtsi37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
index 91df8ec27a3d..85c17dd1c8d5 100644
--- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
@@ -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>;
+ };
};