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

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Message-ID: <20220428133849.df7it6m6z35azy6x@uda0490373>
Date:   Thu, 28 Apr 2022 19:08:50 +0530
From:   Rahul T R <r-ravikumar@...com>
To:     Aradhya Bhatia <a-bhatia1@...com>, <y@...0490373>
CC:     Vignesh Raghavendra <vigneshr@...com>, 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>
Subject: Re: [PATCH 1/4] arm64: dts: ti: k3-am62-main: Add node for Display
 SubSystem

Hi Aradhya,

On 14:38-20220427, Aradhya Bhatia wrote:
> 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>
> ---
>  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>;

address and size cells are added in dts as well, its not required here

> +		};
> +	};
> +
>  	hwspinlock: spinlock@...00000 {
>  		compatible = "ti,am64-hwspinlock";
>  		reg = <0x00 0x2a000000 0x00 0x1000>;
> -- 
> 2.36.0
>