linux-kernel - [PATCH v2 1/4] arm64: dts: ti: k3-am62-main: Add node for Display SubSystem

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Date:   Thu, 5 May 2022 19:13:00 +0530
From:   Aradhya Bhatia <a-bhatia1@...com>
To:     Vignesh Raghavendra <vigneshr@...com>
CC:     Nishanth Menon <nm@...com>, Rob Herring <robh+dt@...nel.org>,
        Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel List <linux-kernel@...r.kernel.org>,
        Aradhya Bhatia <a-bhatia1@...com>,
        Rahul T R <r-ravikumar@...com>
Subject: [PATCH v2 1/4] arm64: dts: ti: k3-am62-main: Add node for Display SubSystem

Add DT node for the Display SubSystem on the am62x soc in cbass_main.
The DSS IP on this soc is compatible with the one on the am65x soc.

The DSS supports one each of video pipeline (vid) and video-lite
pipeline (vidl1). It outputs OLDI signals on one video port (vp1) and
DPI signals on another (vp2). The video ports are connected to the
pipelines via 2 identical overlay managers (ovr1 and ovr2).

Signed-off-by: Aradhya Bhatia <a-bhatia1@...com>
Reviewed-by: Rahul T R <r-ravikumar@...com>
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 30 ++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index eec8dae65e7c..ff21efa4ffad 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -515,6 +515,36 @@ cpts@...00 {
 		};
 	};
 
+	dss: dss@...00000 {
+		compatible = "ti,am65x-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: Used for OLDI */
+		      <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 4>,
+			 <&k3_clks 186 0>,
+			 <&k3_clks 186 2>;
+
+		clock-names = "fck", "vp1", "vp2";
+
+		interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+
+		dss_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+
 	hwspinlock: spinlock@...00000 {
 		compatible = "ti,am64-hwspinlock";
 		reg = <0x00 0x2a000000 0x00 0x1000>;
-- 
2.36.0