linux-kernel - [PATCH 2/4] arm64: dts: ti: k3-am62x-phyboard-lyra: Add HDMI bridge regulators

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Message-ID: <20241101131427.3815341-2-w.egorov@phytec.de>
Date: Fri, 1 Nov 2024 14:14:25 +0100
From: Wadim Egorov <w.egorov@...tec.de>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: <upstream@...ts.phytec.de>, <linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/4] arm64: dts: ti: k3-am62x-phyboard-lyra: Add HDMI bridge regulators

Specify I/0 voltage & core supply regulators used by the SII902x
HDMI bridge and make them known to the bridge.
This resolves the following warning:

  sii902x 1-0039: supply iovcc not found, using dummy regulator
  sii902x 1-0039: supply cvcc12 not found, using dummy regulator

Signed-off-by: Wadim Egorov <w.egorov@...tec.de>
---
 .../boot/dts/ti/k3-am62x-phyboard-lyra.dtsi   | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62x-phyboard-lyra.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-phyboard-lyra.dtsi
index 52cd25999511..04fa2bffca79 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-phyboard-lyra.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-phyboard-lyra.dtsi
@@ -112,6 +112,25 @@ vcc_1v8: regulator-vcc-1v8 {
 		regulator-boot-on;
 	};
 
+	vcc_3v3_hdmi: regulator-vcc-3v3-hdmi {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC_3V3_HDMI";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3_sw>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vcc_1v2_hdmi: regulator-vcc-1v2-hdmi {
+		compatible = "regulator-fixed";
+		regulator-name = "HDMI_CVCC";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	vcc_3v3_mmc: regulator-vcc-3v3-mmc {
 		compatible = "regulator-fixed";
 		regulator-name = "VCC_3V3_MMC";
@@ -367,6 +386,9 @@ sii9022: bridge-hdmi@39 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&hdmi_int_pins_default>;
 
+		iovcc-supply = <&vcc_3v3_hdmi>;
+		cvcc12-supply = <&vcc_1v2_hdmi>;
+
 		ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
2.34.1