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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-61cfc4bbc6bsm9385161a12.29.2025.09.02.03.42.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Sep 2025 03:42:49 -0700 (PDT) Message-ID: Date: Tue, 2 Sep 2025 12:42:44 +0200 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 01/14] dt-bindings: display/msm: dp-controller: Add sm6150 To: Xiangxu Yin , Dmitry Baryshkov Cc: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kuogee Hsieh , Vinod Koul , Kishon Vijay Abraham I , Philipp Zabel , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, fange.zhang@oss.qualcomm.com, yongxing.mou@oss.qualcomm.com, tingwei.zhang@oss.qualcomm.com, Bjorn Andersson , Konrad Dybcio , quic_lliu6@quicinc.com References: <20250820-add-displayport-support-for-qcs615-platform-v3-0-a43bd25ec39c@oss.qualcomm.com> <20250820-add-displayport-support-for-qcs615-platform-v3-1-a43bd25ec39c@oss.qualcomm.com> <75ra2ofecqu6tid6kr4hnyuztpl6jjaq2ksyquafyajhq2sa4d@4tkggrdqky7y> <8918feef-219e-4e69-8901-367189f5066d@oss.qualcomm.com> <28b33851-24eb-428f-b046-b145342fd982@oss.qualcomm.com> <75f8789d-9d97-49d9-97b0-908a5692c325@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <75f8789d-9d97-49d9-97b0-908a5692c325@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODMwMDAzMiBTYWx0ZWRfXxgwlazUakvs+ VxbLsuitURsd9BuvsPdarxtkxgATgxG0Vt7jT62YEYvoT85LkJbYRXcge7IuF/YzEST7iJCB1gR TvGWwtHPF4x/oTBbrMsCGAd0jf+DHfuOKF83Px/jjCukwzHk5KwADCZFRPh8yuifgxn2+sWuotg lHvCkr2VEdFXRzCUqjAgKwNobtbATKqnW6VTDtbkEdVaHpe/ZQq0ZVcnUaZHS9H+SV8eFpZXHjf 6ziMaCmhVayMZHy3hdlO1byIx8Dvp4uPtHC+gKkVchqWJtd67jB/+KozxdMk7XT1ASvszxUMpB7 r9XqJx9L6s8EvFF2/y1cSes5m978MbYkr9VjzurdOmQ4Xn0YfSK3o/ainMQjH7TdToXxQurBxGI R6Z2fP8z X-Proofpoint-ORIG-GUID: ptg0d7uNG4NpDLbopoCosu5gOeSDbfas X-Proofpoint-GUID: ptg0d7uNG4NpDLbopoCosu5gOeSDbfas X-Authority-Analysis: v=2.4 cv=M9NNKzws c=1 sm=1 tr=0 ts=68b6ca2c cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=zKpf_v0BVtz8pCFJhw8A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-02_03,2025-08-28_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 adultscore=0 spamscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 suspectscore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508300032 On 9/1/25 2:32 PM, Xiangxu Yin wrote: > > On 8/28/2025 7:05 PM, Dmitry Baryshkov wrote: >> On 28/08/2025 07:51, Xiangxu Yin wrote: >>> >>> On 8/20/2025 6:18 PM, Dmitry Baryshkov wrote: >>>> On Wed, Aug 20, 2025 at 05:34:43PM +0800, Xiangxu Yin wrote: >>>>> Add DisplayPort controller for Qualcomm SM6150 SoC. >>>>> While SM6150 currently shares the same configuration as SC7180, >>>>> its hardware capabilities differ. Explicitly listing it ensures clarity >>>>> and avoids potential issues if SC7180 support evolves in the future. >>>> I assume, it has no MST support. Am I right? >>> >>> >>>  From sm6150 ipcat, I found MST-related registers and pixel1 clk definition. >> >> Then please describe MST as the main difference between SM6150 and SC7180 (which doesn't have MST). >> >> Also this needs to be rebased on top of the MST bindings. I've picked up the latest posted revision, but basing on the on-list discussion I might need to drop it and post another iteration.  >> > > Would you prefer I keep the current patch and update the description of the > MST capability difference with SC7180 in the commit message, or rebase on > your series and update the dt-binding accordingly? > https://lore.kernel.org/all/20250829-dp_mst_bindings-v7-0-2b268a43917b@oss.qualcomm.com > > Since MST support is not yet mainlined in the DP driver, even if I rebase > now, the final implementation may require redefining msm_dp_desc for > SM6150 in both the dt-binding and the driver once MST lands. dt-bindings must describe the hardware regardless of the current driver functionality (which is unfortunately something we've not paid sufficient attention to before and we're now untangling some messy files..) 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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-61cfc4bbc6bsm9385161a12.29.2025.09.02.03.42.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Sep 2025 03:42:49 -0700 (PDT) Message-ID: Date: Tue, 2 Sep 2025 12:42:44 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 01/14] dt-bindings: display/msm: dp-controller: Add sm6150 To: Xiangxu Yin , Dmitry Baryshkov Cc: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kuogee Hsieh , Vinod Koul , Kishon Vijay Abraham I , Philipp Zabel , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, fange.zhang@oss.qualcomm.com, yongxing.mou@oss.qualcomm.com, tingwei.zhang@oss.qualcomm.com, Bjorn Andersson , Konrad Dybcio , quic_lliu6@quicinc.com References: <20250820-add-displayport-support-for-qcs615-platform-v3-0-a43bd25ec39c@oss.qualcomm.com> <20250820-add-displayport-support-for-qcs615-platform-v3-1-a43bd25ec39c@oss.qualcomm.com> <75ra2ofecqu6tid6kr4hnyuztpl6jjaq2ksyquafyajhq2sa4d@4tkggrdqky7y> <8918feef-219e-4e69-8901-367189f5066d@oss.qualcomm.com> <28b33851-24eb-428f-b046-b145342fd982@oss.qualcomm.com> <75f8789d-9d97-49d9-97b0-908a5692c325@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <75f8789d-9d97-49d9-97b0-908a5692c325@oss.qualcomm.com> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTAyMDAyNCBTYWx0ZWRfX12QHsKU+ch90 ENY0zg/1AC7xlqdV1rYI3rrjp6WvYNl8agPpxGEhB0hQqEKJSWPUfT6RrEC8IsVoq60xU8epXGi zp7bvJbD1Y+v/xkOc9/gz8o6jqNXDEngX7jctgzuNa7PvoIQvCPZwbMnYUt9vGtT8YAchU3mZfJ uchJv8FyDOx9abZpuevofU4yNuuRMjvDI7OaUrmah16dCY+Or8NUhANZVxZFg2butX2A0+O9EnO EVXuPVrfwjMeY62ePbF5dzXU4xt6GkbeKMXJ4FRlOVUeHG+7YgkVwdLqfR4+5ueFw0FTaXLAe1f qNZcfAHvz4AMLVQSfAdpsvk9kBdd1xKky0/Lo+QVNtmRgONpG07ho7U8Kef7wOzOTBTS9DvN0cU RSzNRG4A X-Authority-Analysis: v=2.4 cv=WKh/XmsR c=1 sm=1 tr=0 ts=68b6ca2c cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=zKpf_v0BVtz8pCFJhw8A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-GUID: XMpUtwEHk1JVhZx0Lkqp2_yzUS1bx64x X-Proofpoint-ORIG-GUID: XMpUtwEHk1JVhZx0Lkqp2_yzUS1bx64x X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-02_03,2025-08-28_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 bulkscore=0 phishscore=0 adultscore=0 spamscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509020024 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250902_034254_008275_3EEA47C7 X-CRM114-Status: GOOD ( 21.19 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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