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Mon, 02 Nov 2026 06:57:41 -0800 (PST) Received: from [192.168.226.93] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c4cabcfdc7bsm401506066b.21.2026.11.02.06.57.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Nov 2026 06:57:40 -0800 (PST) Message-ID: Date: Mon, 2 Nov 2026 15:57:38 +0100 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: Srinivas Kandagatla , Le Qi , 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> <23ac857a-b340-401b-ac24-77b89da2aa8e@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <23ac857a-b340-401b-ac24-77b89da2aa8e@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTAyMDA1OSBTYWx0ZWRfX+BLBNS0N2w+j T3XQ6XkVYB2ZbGmjwq61BkG6nZawtiPW63oh68qcKpxR/RU7t7eO8OgmJG+BnOo0VV/KNYDR4Jz WYpdcdF1n69JlLRMccOU5bf+K+G+OTgZ4BdNBQxvUGcdG/5Gk65yUmCREA7oo7hD/JKS9N8KLKe w/45EQbY54lPTc0s//l1Pa9ooa5V7o5Fwe/cG/EWcn1PGDhZrskFfXOSsk+BGOwptSybg1HspcN io7C+lkutQJlzn332YNbhrPs1bddh7mdsJ3DbMwJlRBXsab5DOKmCkSX0237Qnl4Fxyu8VdOF/N yBz4d7jK1LelfYp0cFq1FsTPMpBI73kR5bUxo8l62kQMngfyrIgyGH54JYv7Z55r7wAgrIqvD3K H2jrjQavR/mvB7nIaHw+RlEo2sb/aIYzeUw0k4QBPJ9ca+vX9EYAOZDhEBGPa5R11irlSYC34rU UWqwn3dsU7uYiV31gvw== X-Proofpoint-GUID: -MT35f2O9-dxqohfZyJvmG8shfmaghJk X-Authority-Analysis: v=2.4 cv=FZmiV5+6 c=1 sm=1 tr=0 ts=6ae8a4e6 cx=c_pps a=DUEm7b3gzWu7BqY5nP7+9g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=bylRaU9mNTR0WGHX4M4A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=-aSRE8QhW-JAV6biHavz:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMTAyMDA1OSBTYWx0ZWRfXxqNDPI90E8qb RKgaUfyxlRFIfefzSHfMiJqhqBa57IA9wPWKC8K7fzTkRO067vQvuEQA8diRHa3KHKianiNUiam nr3aD4d8A5KlTEtcUXWfY4IrPtJ8Hbk= X-Proofpoint-ORIG-GUID: -MT35f2O9-dxqohfZyJvmG8shfmaghJk 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=2026-11-02_04,2026-11-02_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 adultscore=0 phishscore=0 malwarescore=0 spamscore=0 suspectscore=0 priorityscore=1501 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611020059 On 10/30/26 10:09 PM, Srinivas Kandagatla wrote: > 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. got it Reviewed-by: Konrad Dybcio Konrad