linux-kernel - [PATCH 1/3] arm64: dts: ti: k3-am62a-main: Add node for Display SubSystem (DSS)

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Date: Thu, 1 Feb 2024 18:24:50 +0530
From: Aradhya Bhatia <a-bhatia1@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero
 Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>
CC: Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel List
	<linux-kernel@...r.kernel.org>,
        Linux ARM Kernel List
	<linux-arm-kernel@...ts.infradead.org>,
        Tomi Valkeinen
	<tomi.valkeinen@...asonboard.com>,
        Devarsh Thakkar <devarsht@...com>, Jai
 Luthra <j-luthra@...com>,
        Aradhya Bhatia <a-bhatia1@...com>
Subject: [PATCH 1/3] arm64: dts: ti: k3-am62a-main: Add node for Display SubSystem (DSS)

Add Display SubSystem (DSS) DT node for the AM62A7 SoC.

The DSS supports one each of video pipeline (vid) and video-lite
pipeline (vidl1). The video port 1 (vp1) is tied-off in AM62A SoC, but
the pipeline remains active. The video port 2 (vp2) outputs the DPI
signals. Both the video ports are connected to the pipelines via 2
identical overlay managers (ovr1 and ovr2).

Signed-off-by: Aradhya Bhatia <a-bhatia1@...com>
---
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 25 +++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index f0b8c9ab1459..d3de5ad3eeb2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -985,4 +985,29 @@ dphy0: phy@...10000 {
 		power-domains = <&k3_pds 185 TI_SCI_PD_EXCLUSIVE>;
 		status = "disabled";
 	};
+
+	dss: dss@...00000 {
+		compatible = "ti,am62a7-dss";
+		reg = <0x00 0x30200000 0x00 0x1000>, /* common */
+		      <0x00 0x30202000 0x00 0x1000>, /* vidl1 */
+		      <0x00 0x30206000 0x00 0x1000>, /* vid */
+		      <0x00 0x30207000 0x00 0x1000>, /* ovr1 */
+		      <0x00 0x30208000 0x00 0x1000>, /* ovr2 */
+		      <0x00 0x3020a000 0x00 0x1000>, /* vp1: Tied OFF in the SoC */
+		      <0x00 0x3020b000 0x00 0x1000>; /* vp2: Used as DPI Out */
+		reg-names = "common", "vidl1", "vid",
+			    "ovr1", "ovr2", "vp1", "vp2";
+		power-domains = <&k3_pds 186 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 186 6>,
+			 <&k3_clks 186 0>,
+			 <&k3_clks 186 2>;
+		clock-names = "fck", "vp1", "vp2";
+		interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+
+		dss_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
 };
-- 
2.34.1