From: Mark Brown <broonie@kernel.org>
Date: Mon, 4 Apr 2022 10:28:06 +0000 (+0100)
Subject: ARM: dts: at91: Describe regulators on at91sam9g20ek
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=afca68de401fceb1d52e1b6daec78e8b09f7f0a2;p=people%2Fjgross%2Flinux.git

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
---

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>;
+	};
 };