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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2446caa3806sm103046795ad.28.2025.08.19.02.21.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Aug 2025 02:21:44 -0700 (PDT) Message-ID: <76ff9434-eeaf-4ee0-a8fa-aec566c46c2a@oss.qualcomm.com> Date: Tue, 19 Aug 2025 17:21:36 +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 v7 2/6] dt-bindings: display/msm: dp-controller: document QCS8300 compatible To: Krzysztof Kozlowski 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: <20250819-qcs8300_mdss-v7-0-49775ef134f4@oss.qualcomm.com> <20250819-qcs8300_mdss-v7-2-49775ef134f4@oss.qualcomm.com> <20250819-ant-of-ultimate-genius-fbfa1a@kuoka> Content-Language: en-US From: Yongxing Mou In-Reply-To: <20250819-ant-of-ultimate-genius-fbfa1a@kuoka> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: EmAeLOrBdSgop8_w7gdTvMPfuegQ_yBI X-Authority-Analysis: v=2.4 cv=N6UpF39B c=1 sm=1 tr=0 ts=68a4422a cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=EUspDBNiAAAA:8 a=b6vJvH-rrpbGiSTQa0AA:9 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODE4MDA3MSBTYWx0ZWRfX2NK/zKSjy8cd 1zAU3I8CpTfjmEY6oh/ZtmGf7aUUzeShfkXv0AJ31yHpJNYZOMnv8snazyV514nbN65rvrVDMxc MAXb74V+geBtfI78AMCdWWf5qv3X3r8idwox53vwJ8z5Th/8JfcvTQ26Ucf1HavYjtiRYgB8DhU gTd6m2ZjO5eMhbm74ePe5/vD+ZL/6YmCXl8B5WhkHg0NguCX7IV8A3BZjvJCg+6+tRF3QTTFL9j KZVOZ5g7QBZeyV5o3XRv9bwBwk/VxcBk6/dYMQF6MONBg6VVP84JFiEfFQ+m7cxvPaaZhtZev6r HKryj/j8n19kloI8dBMbNPV1EmGtp9yBNl3ZMhVj/8/Nu31brXs+Hi+FzB4OzRVnahl1Poaw7n9 N4bELZk3 X-Proofpoint-ORIG-GUID: EmAeLOrBdSgop8_w7gdTvMPfuegQ_yBI 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=2025-08-19_01,2025-08-14_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 clxscore=1015 malwarescore=0 impostorscore=0 suspectscore=0 phishscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508180071 On 2025/8/19 15:58, Krzysztof Kozlowski wrote: > On Tue, Aug 19, 2025 at 11:33:29AM +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 >> with same base offset as SM8650. But it requires new compatible string >> because QCS8300 controller supports 4 MST streams. 4 MST streams will >> be enabled as part of MST feature support. Currently, using SM8650 as >> fallback to enable SST on QCS8300. > > I don't think last sentence is true. Where in current code SM8650 is > used as fallback? > Sorry, this more like a description error. As Dmitry pointed out, we are not using SM8650 as a fallback; we are only using SM8650's data structure in the driver. I will correct the commit message in the next version. Thanks. >> >> Signed-off-by: Yongxing Mou >> --- >> Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 5 ++++- >> 1 file changed, 4 insertions(+), 1 deletion(-) >> >> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml >> index 68a6fd27506fda004e53174db5bcc88a29e8d2a6..ac44abfdd2853393ae199387c9ae2c37e1c48f52 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 > > ...here not. > Emm, if we need new compatable, can we add qcom,qcs8300-dp here? >> - qcom,sa8775p-dp >> - qcom,sc7180-dp >> - qcom,sc7280-dp > > Best regards, > Krzysztof >