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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b5209ccb174sm566277a12.19.2025.09.04.19.50.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 04 Sep 2025 19:50:42 -0700 (PDT) Message-ID: Date: Fri, 5 Sep 2025 10:50:33 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v11 2/6] dt-bindings: display/msm: dp-controller: document QCS8300 compatible To: 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 , Neil Armstrong , Kuogee Hsieh , Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250904-qcs8300_mdss-v11-0-bc8761964d76@oss.qualcomm.com> <20250904-qcs8300_mdss-v11-2-bc8761964d76@oss.qualcomm.com> Content-Language: en-US From: Yongxing Mou In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: yJAiv5afr3nLSciLpZWhl0Xw9OU8RK-V X-Proofpoint-ORIG-GUID: yJAiv5afr3nLSciLpZWhl0Xw9OU8RK-V X-Authority-Analysis: v=2.4 cv=ccnSrmDM c=1 sm=1 tr=0 ts=68ba5004 cx=c_pps a=mDZGXZTwRPZaeRUbqKGCBw==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=EUspDBNiAAAA:8 a=LzpWVPJsz2Mq4VjTse8A:9 a=QEXdDO2ut3YA:10 a=zc0IvFSfCIW2DFIPzwfm:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODMwMDA0MiBTYWx0ZWRfX35Nuz+8Y7ZT2 fRWupu1U0FFKQEUhFjPcRbweJj76KPfKKg4PDaool/xjK1BxRsW+afw3KlipV16RD+6reEwfVx9 74oMYp65MYKWdFL+0LF+kC7cSSgYsi6LvzAbCxNfGx7zONjEn5+GRd60nhMgXeuDHHGZQC8sXdG HrOZR1u0NRByCCiPvG4q+5nDZ/ema5pbMaph+gmcpbPFjSPYPvwLSzOkdAFzsgybqF/PKAR6xHo AkSAUrZPGSvdAyQP1hLR6vG38Uw13GVSpUL2uek9QUYYuBZVeJpXXdTTMy6yUJPrVQdjl0sAMbd X4ATe4lTumx2uVj3FGl9TGRElpvaH7u6F1d00YFd0bdLroDJeHsVlrXczHmUvHYI19a/fchzOxR zfAYB1z5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-05_01,2025-09-04_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 clxscore=1015 suspectscore=0 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508300042 On 9/4/2025 9:43 PM, Dmitry Baryshkov wrote: > On Thu, Sep 04, 2025 at 03:22:37PM +0800, Yongxing Mou wrote: >> Add compatible string for the DisplayPort controller found on the >> Qualcomm QCS8300 SoC. >> >> The Qualcomm QCS8300 platform comes with one DisplayPort controller >> that supports 4 MST streams. >> >> Signed-off-by: Yongxing Mou >> --- >> .../bindings/display/msm/dp-controller.yaml | 22 ++++++++++++++++++++++ >> 1 file changed, 22 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml >> index aeb4e4f36044a0ff1e78ad47b867e232b21df509..ad08fd11588c45698f7e63ecc3218a749fc8ca67 100644 >> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml >> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml >> @@ -18,6 +18,7 @@ properties: >> compatible: >> oneOf: >> - enum: >> + - qcom,qcs8300-dp > > Can we use fallback to qcom,sa8775p-dp instead of declaring a completely > new one? > I think we can not use fallback to sa8775p, since we don't have DP1 controller for QCS8300. SA8775P actually have 4 DP controllers (now only 2 really used). So in the hardware, i think it is different with SA8775P and we need a new one.>> - qcom,sa8775p-dp >> - qcom,sc7180-dp >> - qcom,sc7280-dp >> @@ -195,6 +196,7 @@ allOf: >> compatible: >> contains: >> enum: >> + - qcom,qcs8300-dp >> - qcom,sa8775p-dp >> - qcom,x1e80100-dp >> then: >> @@ -295,6 +297,26 @@ allOf: >> minItems: 6 >> maxItems: 8 >> >> + - if: >> + properties: >> + compatible: >> + contains: >> + enum: >> + # QCS8300 only has one DP controller that supports 4 >> + # streams MST. >> + - qcom,qcs8300-dp >> + then: >> + properties: >> + reg: >> + minItems: 9 >> + maxItems: 9 >> + clocks: >> + minItems: 8 >> + maxItems: 8 >> + clocks-names: >> + minItems: 8 >> + maxItems: 8 >> + >> additionalProperties: false >> >> examples: >> >> -- >> 2.34.1 >> >