[PATCH v3 4/5] arm64: dts: rockchip: Add missing dp_out port for RK3399 CDN-DP

Chaoyi Chen kernel at airkyi.com
Wed Jul 30 01:26:51 UTC 2025


On 7/30/2025 3:59 AM, Diederik de Haas wrote:

> On Tue Jul 29, 2025 at 11:00 AM CEST, Chaoyi Chen wrote:
>> From: Chaoyi Chen <chaoyi.chen at rock-chips.com>
>>
>> Let's make the ports nodes of cdn_dp in the same style as the other
>> display interface, and match the style of ports's yaml.
>>
>> Signed-off-by: Chaoyi Chen <chaoyi.chen at rock-chips.com>
>> ---
>>   arch/arm64/boot/dts/rockchip/rk3399-base.dtsi | 12 +++++++++++-
>>   1 file changed, 11 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-base.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-base.dtsi
>> index 9d5f5b083e3c..edeb177bc433 100644
>> --- a/arch/arm64/boot/dts/rockchip/rk3399-base.dtsi
>> +++ b/arch/arm64/boot/dts/rockchip/rk3399-base.dtsi
>> @@ -618,7 +618,11 @@ cdn_dp: dp at fec00000 {
>>   		status = "disabled";
>>   
>>   		ports {
>> -			dp_in: port {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +
>> +			dp_in: port at 0 {
>> +				reg = <0>;
>>   				#address-cells = <1>;
>>   				#size-cells = <0>;
>>   
>> @@ -632,6 +636,12 @@ dp_in_vopl: endpoint at 1 {
>>   					remote-endpoint = <&vopl_out_dp>;
>>   				};
>>   			};
>> +
>> +			dp_out: port at 1 {
>> +				reg = <1>;
>> +				#address-cells = <1>;
>> +				#size-cells = <0>;
>> +			};
> Patch 5 adds a single endpoint to dp_out (without a reg property), so it
> seems that #address/#size-cells is not needed?
> If you run ``make CHECK_DTBS=y W=1 rockchip/rk3399-evb-ind.dtb`` it
> should spit out a warning about that.
Exactly! Will remove this in v4.
>
> Cheers,
>    Diederik
>
>>   		};
>>   	};
>>   


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