[PATCH] arm64: dts: ti: k3-j721e-main: Add DSI and DPHY-TX

[Devarsh Thakkar]

Hi Hari,

On 22/08/25 18:16, Harikrishna Shenoy wrote:
> From: Rahul T R <r-ravikumar at ti.com>
> 
> TI's J721E SoC supports a DPI to DSI video signal conversion bridge on
> it's platform bus. The IP is from Cadence, and it has a custom TI
> wrapper around it to facilitate integration.
> 
> This IP takes the DPI video signals from DSS and alongwith the DPHY IP,
> it transmits DSI video signals out of the SoC.
> 
> Add support for DSI bridge and the DPHY-TX.
> 
> Signed-off-by: Rahul T R <r-ravikumar at ti.com>
> Signed-off-by: Jayesh Choudhary <j-choudhary at ti.com>
> Signed-off-by: Harikrishna Shenoy <h-shenoy at ti.com>
> ---
>   arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 31 +++++++++++++++++++++++
>   1 file changed, 31 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> index ab3666ff4297..d65b6fcae338 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> @@ -1887,6 +1887,37 @@ port at 4 {
>   		};
>   	};
>   
> +	dphy2: phy at 4480000 {

I would suggest to have a better label naming:
s/dphy2/dphy_tx
s/dphy1/dphy_rx

> +		compatible = "ti,j721e-dphy";
> +		reg = <0x00 0x04480000 0x00 0x1000>;
> +		clocks = <&k3_clks 296 1>, <&k3_clks 296 3>;
> +		clock-names = "psm", "pll_ref";
> +		#phy-cells = <0>;
> +		power-domains = <&k3_pds 296 TI_SCI_PD_EXCLUSIVE>;
> +		assigned-clocks = <&k3_clks 296 3>;
> +		assigned-clock-parents = <&k3_clks 296 4>;
> +		assigned-clock-rates = <19200000>;
> +		status = "disabled";
> +	};
> +
> +	dsi0: dsi at 4800000 {
> +		compatible = "ti,j721e-dsi";
> +		reg = <0x00 0x04800000 0x00 0x100000>, <0x00 0x04710000 0x00 0x100>;
> +		clocks = <&k3_clks 150 1>, <&k3_clks 150 5>;
> +		clock-names = "dsi_p_clk", "dsi_sys_clk";
> +		power-domains = <&k3_pds 150 TI_SCI_PD_EXCLUSIVE>;
> +		interrupt-parent = <&gic500>;
> +		interrupts = <GIC_SPI 600 IRQ_TYPE_LEVEL_HIGH>;
> +		phys = <&dphy2>;

phys = <&dphy_tx>

and likewise for dphy_rx.

Regards
Devarsh