Re: [PATCH v2] arm64: dts: ti: k3-am62l: Add HDMI & DSI support

[Swamil Jain <s-jain1@ti.com>]

Hi Udit,

On 5/29/26 14:28, Kumar, Udit wrote:
> 
> 
> On 5/28/2026 7:05 PM, Swamil Jain wrote:
>> From: Devarsh Thakkar <devarsht@ti.com>
>>
>> Add DSS, DSI, DPHY, and HDMI bridge nodes to enable DPI-to-HDMI output
>> on AM62L[1]. The DSS uses parallel DPI interface with pinctrl
>> configuration to drive an external SiI9022 HDMI bridge.
>>
>> DSI and DPHY nodes are added but remain disabled, as the AM62L shares a
>> single video port for DPI and DSI output.
>>
>> DSI functionality can be enabled via overlays when required.
>>
>> [1]: https://www.ti.com/product/AM62L
>>
>> Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
>> Signed-off-by: Swamil Jain <s-jain1@ti.com>
>> ---
>> Changelog:
>> v1->v2:
>> - Update the commit message to elaborate more about the patch.
>> - Add dpi-pinctrl configuration.
>> - Update the interrupt routing index for HDMI interrupt line
>>
>> Link to v1: https://lore.kernel.org/all/20260513210942.692269-1-s-jain1@ti.com/
>> ---
>>   arch/arm64/boot/dts/ti/k3-am62l-main.dtsi | 47 +++++++++++
>>   arch/arm64/boot/dts/ti/k3-am62l3-evm.dts  | 95 +++++++++++++++++++++++
>>   2 files changed, 142 insertions(+)
>>
>> 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 {
>> +		compatible = "ti,am62l-dss";
>> +		reg = <0x00 0x30200000 0x00 0x1000>, /* common */
>> +		      <0x00 0x30202000 0x00 0x1000>, /* vidl1 */
>> +		      <0x00 0x30207000 0x00 0x1000>, /* ovr1 */
>> +		      <0x00 0x3020a000 0x00 0x1000>, /* vp1 */
>> +		      <0x00 0x30201000 0x00 0x1000>; /* common1 */
>> +		reg-names = "common", "vidl1", "ovr1", "vp1", "common1";
>> +		power-domains = <&scmi_pds 39>;
>> +		clocks = <&scmi_clk 162>,
>> +			 <&scmi_clk 161>;
>> +		clock-names = "fck", "vp1";
>> +		interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
>> +		status = "disabled";
>> +
>> +		dss_ports: ports {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +		};
>> +	};
>> +
>> +	dphy_tx0: phy@301c0000 {
>> +		compatible = "ti,j721e-dphy";
>> +		reg = <0x0 0x301c0000 0x0 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>;
>> +		clocks = <&scmi_clk 155>, <&scmi_clk 158>;
>> +		clock-names = "dsi_p_clk", "dsi_sys_clk";
>> +		power-domains = <&scmi_pds 38>;
>> +		interrupt-parent = <&gic500>;
>> +		interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
>> +		phys = <&dphy_tx0>;
>> +		phy-names = "dphy";
>> +		status = "disabled";
> 
> 
> I think you should add port information for dsi as well
> see DSI node in other SOC (J721E, J721S2, J784s4) for reference.
>

Sure, will add ports info. in the next rev.

Regards,
Swamil.


> 
>> +	};
>>   };
>> diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
>> index a1af4571a815..9b04fa6d2cba 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
>> +++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
>> @@ -119,6 +119,18 @@ vcc_1v8: regulator-3 {
>>   		regulator-always-on;
>>   		regulator-boot-on;
>>   	};
>> +
> [..]