linux-kernel - [PATCH v1 2/2] ARM: dts: stm32: enable display on stm32mp157c-dk1 board

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Date:   Fri, 29 Mar 2019 13:43:58 +0100
From:   Yannick Fertré <yannick.fertre@...com>
To:     Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Benjamin Gaignard <benjamin.gaignard@...com>,
        Yannick Fertre <yannick.fertre@...com>,
        Philippe Cornu <philippe.cornu@...com>,
        Fabrice Gasnier <fabrice.gasnier@...com>
Subject: [PATCH v1 2/2] ARM: dts: stm32: enable display on stm32mp157c-dk1 board

Enable hdmi bridge sii9022 & display controller.

Signed-off-by: Yannick Fertré <yannick.fertre@...com>
---
 arch/arm/boot/dts/stm32mp157a-dk1.dts | 56 +++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157a-dk1.dts b/arch/arm/boot/dts/stm32mp157a-dk1.dts
index 696a533..f483600 100644
--- a/arch/arm/boot/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/boot/dts/stm32mp157a-dk1.dts
@@ -37,6 +37,14 @@
 		};
 	};
 
+	v1v2_hdmi: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "v3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
 	v3v3: regulator-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "v3v3";
@@ -44,6 +52,14 @@
 		regulator-max-microvolt = <3300000>;
 		regulator-always-on;
 	};
+
+	v3v3_hdmi: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "v3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
 };
 
 &ethernet0 {
@@ -74,6 +90,32 @@
 	status = "okay";
 	/delete-property/dmas;
 	/delete-property/dma-names;
+
+	hdmi-transmitter@39 {
+		compatible = "sil,sii9022";
+		reg = <0x39>;
+		iovcc-supply = <&v3v3_hdmi>;
+		cvcc12-supply = <&v1v2_hdmi>;
+		reset-gpios = <&gpioa 10 GPIO_ACTIVE_LOW>;
+		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-parent = <&gpiog>;
+		pinctrl-names = "default", "sleep";
+		pinctrl-0 = <&ltdc_pins_a>;
+		pinctrl-1 = <&ltdc_pins_sleep_a>;
+		status = "okay";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				sii9022_in: endpoint {
+					remote-endpoint = <&ltdc_ep0_out>;
+				};
+			};
+		};
+	};
 };
 
 &i2c4 {
@@ -96,6 +138,20 @@
 	status = "okay";
 };
 
+&ltdc {
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ltdc_ep0_out: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&sii9022_in>;
+		};
+	};
+};
+
 &rng1 {
 	status = "okay";
 };
-- 
2.7.4