* [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link
@ 2026-10-09 3:04 Le Qi
2026-10-20 10:14 ` Konrad Dybcio
0 siblings, 1 reply; 4+ messages in thread
From: Le Qi @ 2026-10-09 3:04 UTC (permalink / raw)
To: Bjorn Andersson, Konrad Dybcio, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: Abel Vesa, linux-arm-msm, devicetree, linux-kernel, kernel, Le Qi
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>;
+ };
+ };
};
wifi-bt-connector {
--
2.34.1
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link
2026-10-09 3:04 [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link Le Qi
@ 2026-10-20 10:14 ` Konrad Dybcio
2026-10-29 3:27 ` Le Qi
0 siblings, 1 reply; 4+ messages in thread
From: Konrad Dybcio @ 2026-10-20 10:14 UTC (permalink / raw)
To: Le Qi, Bjorn Andersson, Konrad Dybcio, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Srinivas Kandagatla
Cc: Abel Vesa, linux-arm-msm, devicetree, linux-kernel, kernel
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
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link
2026-10-20 10:14 ` Konrad Dybcio
@ 2026-10-29 3:27 ` Le Qi
2026-10-30 21:09 ` Srinivas Kandagatla
0 siblings, 1 reply; 4+ messages in thread
From: Le Qi @ 2026-10-29 3:27 UTC (permalink / raw)
To: Konrad Dybcio, Bjorn Andersson, Konrad Dybcio, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Srinivas Kandagatla
Cc: Abel Vesa, linux-arm-msm, devicetree, linux-kernel, kernel
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
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link
2026-10-29 3:27 ` Le Qi
@ 2026-10-30 21:09 ` Srinivas Kandagatla
0 siblings, 0 replies; 4+ messages in thread
From: Srinivas Kandagatla @ 2026-10-30 21:09 UTC (permalink / raw)
To: Le Qi, Konrad Dybcio, Bjorn Andersson, Konrad Dybcio,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: Abel Vesa, linux-arm-msm, devicetree, linux-kernel, kernel
On 10/29/26 3:27 AM, Le Qi wrote:
> 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?
probably not,
1. because the dai-links do not have explicit disabled status, so these
get parsed
2. sound card itself is board specific.
--srini
>>
>> 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,
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-10-30 21:14 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2026-10-09 3:04 [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link Le Qi
2026-10-20 10:14 ` Konrad Dybcio
2026-10-29 3:27 ` Le Qi
2026-10-30 21:09 ` Srinivas Kandagatla
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