Re: [PATCH] arm64: dts: ti: k3-am62l: Enable HDMI & DSI display

[Vignesh Raghavendra]

On Thu, 14 May 2026 02:39:42 +0530, Swamil Jain <s-jain1@xxxxxx> wrote:
> Enable DSS, DSI and HDMI related nodes and pinmuxes.
> 

Don't see any Pinmux node added? did you miss them?
Also, DSI still remains disabled?

>
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi
> index 80615ca1e01a..1d255c9138db 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi
> @@ -584,4 +584,51 @@ scmi_shmem: sram@0 {
>  			bootph-all;
>  		};
>  	};
> +
> +	dss: dss@30200000 {

New nodes need to added in sorted order as per their addresses in this 
dtsi file.

> [ ... skip 17 lines ... ]
> +		};
> +	};
> +
> +	dphy_tx0: phy@301c0000 {
> +		compatible = "ti,j721e-dphy";
> +		reg = <0x0 0x301c0000 0x0 0x1000>;

reg = <0x00 0x301c0000 0x00 0x1000>;

> +		clocks = <&scmi_clk 348>, <&scmi_clk 343>;
> +		clock-names = "psm", "pll_ref";
> +		#phy-cells = <0>;
> +		power-domains = <&scmi_pds 86>;
> +		assigned-clocks = <&scmi_clk 343>;
> +		assigned-clock-parents = <&scmi_clk 341>;
> +		assigned-clock-rates = <25000000>;
> +		status = "disabled";
> +	};
> +
> +	dsi0: dsi@30500000 {
> +		compatible = "ti,j721e-dsi";
> +		reg = <0x0 0x30500000 0x0 0x100000>, <0x0 0x30270000 0x0 0x100>;

reg = <0x00 0x30500000 0x00 0x100000>,
		      <0x00 0x30270000 0x00 0x100>;

> +		clocks = <&scmi_clk 155>, <&scmi_clk 158>;
> +		clock-names = "dsi_p_clk", "dsi_sys_clk";
> +		power-domains = <&scmi_pds 38>;
> +		interrupt-parent = <&gic500>;

GIC is implied, drop.

> +		interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
> +		phys = <&dphy_tx0>;
> +		phy-names = "dphy";
> +		status = "disabled";

Don't you need dsi*_ports ?

>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
> index a1af4571a815..7462921e2180 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
> @@ -192,6 +204,36 @@ exp2: gpio@23 {
>  		bootph-all;
>  	};
>  
> +	sii9022: bridge-hdmi@3b {
> +		compatible = "sil,sii9022";
> +		reg = <0x3b>;
> +		interrupt-parent = <&exp1>;

Is there a reset line to the chip, I see GPIO_HDMI_RSTn in exp2 GPIO
expander, does that need to be hooked up somewhere?

-- 
Vignesh