linux-kernel - [PATCH v1] arm64: dts: ti: verdin-am62: Add DSI display support

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Date:   Sat, 12 Aug 2023 21:11:23 +0200
From:   Francesco Dolcini <francesco@...cini.it>
To:     Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Francesco Dolcini <francesco.dolcini@...adex.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1] arm64: dts: ti: verdin-am62: Add DSI display support

From: Francesco Dolcini <francesco.dolcini@...adex.com>

Add MIPI-DSI support to Verdin AM62.

Verdin AM62 has a MIPI DSI interface on the edge connector, this is
provided with a Toshiba TC358778 DPI to MIPI-DSI bridge connected to the
DSS DPI port with a 18-bit width parallel bus.

Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
---
 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
index 5db9ef2dc7e5..40992e7e4c30 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
@@ -815,6 +815,26 @@ cpsw3g_phy0: ethernet-phy@0 {
 	};
 };
 
+&dss {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_parallel_rgb>;
+	status = "disabled";
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* VP2: DPI Output */
+	port@1 {
+		reg = <1>;
+
+		dpi_out: endpoint {
+			remote-endpoint = <&rgb_in>;
+		};
+	};
+};
+
 /* Verdin PWM_1, PWM_2 */
 &epwm0 {
 	pinctrl-names = "default";
@@ -1051,6 +1071,7 @@ port@0 {
 
 				rgb_in: endpoint {
 					data-lines = <18>;
+					remote-endpoint = <&dpi_out>;
 				};
 			};
 
-- 
2.25.1