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Fri, 30 Oct 2026 14:09:40 -0700 (PDT) Received: from [192.168.68.120] ([5.133.47.210]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-4aa81a896fesm178757295e9.10.2026.10.30.14.09.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 30 Oct 2026 14:09:40 -0700 (PDT) Message-ID: <23ac857a-b340-401b-ac24-77b89da2aa8e@oss.qualcomm.com> Date: Fri, 30 Oct 2026 21:09:39 +0000 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] arm64: dts: qcom: purwa-iot-evk: add missing DP2 audio link To: Le Qi , Konrad Dybcio , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Abel Vesa , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@oss.qualcomm.com References: <20261009030404.1981995-1-le.qi@oss.qualcomm.com> <01b4728f-a78e-4932-96fa-795283e91cb6@oss.qualcomm.com> <55e20ec8-d6fe-4613-b7c0-d748f2e5944e@oss.qualcomm.com> From: Srinivas Kandagatla Content-Language: en-US In-Reply-To: <55e20ec8-d6fe-4613-b7c0-d748f2e5944e@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDMwMDA4NCBTYWx0ZWRfXx8hLWP7dphlF mHUWYk+Kuh0x9UJq5djK0mqL2zmkGRNTbIatviP2SFBusXq5vuZh7YorZcFfqm+9gTBC6UZwaL9 2dIrY+7IqFbofs3jV9jUneo3mUqZnP+tCG6yOlImPk2zsbX7YxoDwKL4tmY8usyWAcLhJHWJVCM hLFD7ETqb0jqbIte16qapyqbLra3Z4Es6cJu5UvZRayLPRKnJ8M4Ap8LHrv61mhTT+GiFoT0NuN RkUZpAdB/SSkabCa1HslyboM7V/iIknBlMk0WkGYP810owFfxhBGreScxGxMHCSm9t18KzN6FX4 kw0pFBI1cWe+qqp5QBISlpkbOueLHByweoWkYe7MhlUnjsCBQo0xvy81wJ3lb+NAqh44zu62dSD o0sMQejHAiOH1GQeNvJv7Fki6ePicg== X-Authority-Analysis: v=2.4 cv=CLG/zhrD c=1 sm=1 tr=0 ts=6ae508cb cx=c_pps a=JIY1xp/sjQ9K5JH4t62bdg==:117 a=ZsC4DHZuhs/kKio7QBcDoQ==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=cwMTcsmotyg-k-KcDEcA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=tNoRWFLymzeba-QzToBc:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDMwMDA4NCBTYWx0ZWRfXxCUK5tfg591m rdv5vfEDaK2e7TaxGvTw9/P6EFk8samyy9I/tS+nXpJpjO5n77XOIvMLtAHF033XmcEwag4SbbC ipSmCCTITaExQhW6nLm6KXChZWVO0Mw= X-Proofpoint-GUID: LsCHurPS7qAnvutSmgftNYVvSm4cW9eL X-Proofpoint-ORIG-GUID: LsCHurPS7qAnvutSmgftNYVvSm4cW9eL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-30_06,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 suspectscore=0 phishscore=0 adultscore=0 lowpriorityscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2610300084 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 >>> --- >>>   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, >