linux-kernel - [RFC PATCH 6/6] arm64: dts: imx8mq-librem5-devkit: Enable MIPI DSI panel

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Message-Id: <7f91beb1ce51a88dbe43e69c8af35b8684c0ac4c.1589548223.git.agx@sigxcpu.org>
Date:   Fri, 15 May 2020 15:12:15 +0200
From:   Guido Günther <agx@...xcpu.org>
To:     Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Anson Huang <Anson.Huang@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Peng Fan <peng.fan@....com>,
        Robert Chiras <robert.chiras@....com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [RFC PATCH 6/6] arm64: dts: imx8mq-librem5-devkit: Enable MIPI DSI panel

Enable MIPI LCD panel output by adding nodes for the NWL DSI host
controller, the mux-input-bridge, the Rocktech panel and the eLCDIF
display controller.

Signed-off-by: Guido Günther <agx@...xcpu.org>
---
 .../dts/freescale/imx8mq-librem5-devkit.dts   | 81 +++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index 7fc31c71a626..d98f9b8dede8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -841,6 +841,87 @@ MX8MQ_IOMUXC_NAND_DATA03_GPIO3_IO9	0x19 /* WWAN_RESET */
 	};
 };
 
+&lcdif {
+	status = "okay";
+
+	port@0 {
+		lcdif_dpi_out: endpoint {
+			remote-endpoint = <&dpi_mux_from_lcdif>;
+		};
+	};
+};
+
+&iomuxc_gpr {
+	mipi_mux: mipi-mux {
+		compatible = "mux-input-bridge";
+		mux-controls = <&mux 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "okay";
+		default-input = <0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				dpi_mux_from_lcdif: endpoint {
+					remote-endpoint = <&lcdif_dpi_out>;
+				};
+			};
+
+			port@1 { /* dcss */
+				reg = <1>;
+			};
+
+			port@2 {
+				reg = <2>;
+				dpi_mux_out: endpoint {
+					remote-endpoint = <&nwl_dpi_in>;
+				};
+
+			};
+		};
+	};
+};
+
+&mipi_dsi {
+	status = "okay";
+	panel@0 {
+		compatible = "rocktech,jh057n00900";
+		reg = <0>;
+		backlight = <&backlight_dsi>;
+		reset-gpios = <&gpio3 13 GPIO_ACTIVE_LOW>;
+		vcc-supply = <&reg_2v8_p>;
+		iovcc-supply = <&reg_1v8_p>;
+		port@0 {
+			panel_in: endpoint {
+				remote-endpoint = <&nwl_dsi_out>;
+			};
+		};
+	};
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			nwl_dpi_in: endpoint {
+				remote-endpoint = <&dpi_mux_out>;
+			};
+		};
+		port@1 {
+			reg = <1>;
+			nwl_dsi_out: endpoint {
+				remote-endpoint = <&panel_in>;
+			};
+		};
+	};
+};
+
 &pgc_gpu {
 	power-supply = <&buck3_reg>;
 };
-- 
2.26.1