Re: [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link

[Le Qi <le.qi@oss.qualcomm.com>]

On 10/20/2026 6:14 PM, Konrad Dybcio wrote:
> On 10/9/26 5:04 AM, Le Qi wrote:
>> The DP2 DAI link is missing from the sound card definition, preventing
>> audio playback over the third DisplayPort interface.
>>
>> Add the required codec, CPU, and platform DAI configuration to enable
>> audio playback over DP2.
>>
>> Signed-off-by: Le Qi<le.qi@oss.qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/purwa-iot-evk.dts | 16 ++++++++++++++++
>>   1 file changed, 16 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts b/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
>> index a811d8ca2dbf..93cefffd1f46 100644
>> --- a/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
>> +++ b/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
>> @@ -641,6 +641,22 @@ platform {
>>   				sound-dai = <&q6apm>;
>>   			};
>>   		};
>> +
>> +		dp2-dai-link {
>> +			link-name = "DP2 Playback";
>> +
>> +			codec {
>> +				sound-dai = <&mdss_dp2>;
>> +			};
>> +
>> +			cpu {
>> +				sound-dai = <&q6apmbedai DISPLAY_PORT_RX_2>;
>> +			};
>> +
>> +			platform {
>> +				sound-dai = <&q6apm>;
>> +			};
>> +		};
> Srini, can/should this be in the SoC DT?
> 
> Konrad

Hi Konrad,

I think it is better to keep this in the board DT, since the sound card 
is board-specific. DP0 and DP1 DAI links are already defined here, so 
DP2 should be added alongside them.

Srini has also agreed to adding DP2 support in the audio topology.

Thanks,

-- 
Thx and BRs,
Le Qi