linux-kernel - [PATCH v2 6/6] arm64: dts: st: add display support on stm32mp257f-ev

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Message-ID: <20240111104049.38695-7-raphael.gallais-pou@foss.st.com>
Date: Thu, 11 Jan 2024 11:40:49 +0100
From: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
To: Yannick Fertre <yannick.fertre@...s.st.com>,
        Raphael Gallais-Pou
	<raphael.gallais-pou@...s.st.com>,
        Philippe Cornu
	<philippe.cornu@...s.st.com>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre
 Torgue <alexandre.torgue@...s.st.com>,
        Philipp Zabel <p.zabel@...gutronix.de>
CC: <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 6/6] arm64: dts: st: add display support on stm32mp257f-ev

This patch enables the following IPs on stm32mp257f-ev :
  * LTDC
  * LVDS
  * WSVGA LVDS panel (1024x600)
  * Panel backlight
  * Ilitek touchescreen

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 79 ++++++++++++++++++++++
 1 file changed, 79 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 0ea8e69bfb3d..ca2da988d91c 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -29,6 +29,43 @@ memory@...00000 {
 		reg = <0x0 0x80000000 0x1 0x0>;
 	};
 
+	panel_lvds: panel-lvds {
+		compatible = "edt,etml0700z9ndha", "panel-lvds";
+		enable-gpios = <&gpiog 15 GPIO_ACTIVE_HIGH>;
+		backlight = <&panel_lvds_backlight>;
+		status = "okay";
+
+		width-mm = <156>;
+		height-mm = <92>;
+		data-mapping = "vesa-24";
+
+		panel-timing {
+			clock-frequency = <54000000>;
+			hactive = <1024>;
+			vactive = <600>;
+			hfront-porch = <150>;
+			hback-porch = <150>;
+			hsync-len = <21>;
+			vfront-porch = <24>;
+			vback-porch = <24>;
+			vsync-len = <21>;
+		};
+
+		port {
+			lvds_panel_in: endpoint {
+				remote-endpoint = <&lvds_out0>;
+			};
+		};
+	};
+
+	panel_lvds_backlight: panel-lvds-backlight {
+		compatible = "gpio-backlight";
+		gpios = <&gpioi 5 GPIO_ACTIVE_HIGH>;
+		default-on;
+		default-brightness-level = <0>;
+		status = "okay";
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -63,6 +100,15 @@ &i2c2 {
 	i2c-scl-falling-time-ns = <13>;
 	clock-frequency = <400000>;
 	status = "okay";
+
+	ili2511: ili2511@41 {
+		compatible = "ilitek,ili251x";
+		reg = <0x41>;
+		interrupt-parent = <&gpioi>;
+		interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+		reset-gpios = <&gpiog 14 GPIO_ACTIVE_LOW>;
+		status = "okay";
+	};
 };
 
 &i2c8 {
@@ -75,6 +121,39 @@ &i2c8 {
 	status = "disabled";
 };
 
+&ltdc {
+	status = "okay";
+
+	port {
+		ltdc_ep0_out: endpoint {
+			remote-endpoint = <&lvds_in>;
+		};
+	};
+};
+
+&lvds {
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			lvds_in: endpoint {
+				remote-endpoint = <&ltdc_ep0_out>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			lvds_out0: endpoint {
+				remote-endpoint = <&lvds_panel_in>;
+			};
+		};
+	};
+};
+
 &sdmmc1 {
 	pinctrl-names = "default", "opendrain", "sleep";
 	pinctrl-0 = <&sdmmc1_b4_pins_a>;
-- 
2.25.1