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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-31cb5c5da0csm3170530a91.25.2025.07.18.09.37.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 18 Jul 2025 09:37:32 -0700 (PDT) Message-ID: <0261da76-a1fa-42ff-9941-4ce235a449d0@oss.qualcomm.com> Date: Fri, 18 Jul 2025 09:37:29 -0700 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 v3 5/5] arm64: dts: qcom: Add MST pixel streams for displayport To: Konrad Dybcio , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kuogee Hsieh , Abel Vesa , Bjorn Andersson , Michael Turquette , Stephen Boyd , Mahadevan , Krishna Manikandan , Konrad Dybcio , Rob Clark , Abhinav Kumar , Danila Tikhonov , cros-qcom-dts-watchers@chromium.org Cc: Abhinav Kumar , 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-clk@vger.kernel.org, Krzysztof Kozlowski , Yongxing Mou References: <20250717-dp_mst_bindings-v3-0-72ce08285703@oss.qualcomm.com> <20250717-dp_mst_bindings-v3-5-72ce08285703@oss.qualcomm.com> <17ea4f08-daf0-406c-8760-23a23417ec1f@oss.qualcomm.com> Content-Language: en-US From: Jessica Zhang In-Reply-To: <17ea4f08-daf0-406c-8760-23a23417ec1f@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzE4MDEzMCBTYWx0ZWRfX1a1dtvykbaAQ LUgc/Y8pvVrf25pjwpIP73tLxbrTS1H9hy+ZISyHrODmmPDPkrD0npiOweVLEC89z7k9Ax19+YB U5vwYKfORRwIMKWOxWmkRysp3YtohDZKFWDCdp93xRUpgL3001M70hOP64nOTVMFZIW5wf04+0G 9cPiikU0rP++mncxUjqietRtPpnoe6DqoAyClXp7p2OpXD0sZSzgEKdLyABTyjyNdyu8U2Mv02x SbR6HknotYq1YG6pE1C083bpmjhbLXZi6hOgUZc2JJcSonJBau8QQ/FESnBGXc+cknIXKaGX3id amJOuklE+VOC5VysTadcpGbPQxJyaT2W58hu1vgt230JB5NwQ+ruktL1/lR9ZeseYS1j4HyR0nS IpFhFfIsxxQvMVqfaIUDdXh3ysclSUHflndr8mMbWqQ/wdLt6euyqABJbxwItiRjEbWyhlVn X-Proofpoint-GUID: tOjd5DKlyM-_MSafxNGhI7AUFWKQuK8s X-Proofpoint-ORIG-GUID: tOjd5DKlyM-_MSafxNGhI7AUFWKQuK8s X-Authority-Analysis: v=2.4 cv=McZsu4/f c=1 sm=1 tr=0 ts=687a784e cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=Q06rUcgQto-sQqt8d9IA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 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=2025-07-18_03,2025-07-17_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxlogscore=687 impostorscore=0 mlxscore=0 phishscore=0 adultscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015 suspectscore=0 spamscore=0 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2507180130 On 7/18/2025 2:23 AM, Konrad Dybcio wrote: > On 7/18/25 1:28 AM, Jessica Zhang wrote: >> The following chipsets support 2 total pixel streams: >> - sa8775p (on mdss_dp1) >> - sc8180x >> - sc8280xp (mdss_dp0-2 only) >> - sm8150 >> - sm8350 > > I think 8250 can do 2 streams too, no? Hi Konrad, Yes, 8250 supports 2x MST. I will include it in the commit message. Thanks, Jessica Zhang > > sdm845/sm7150 also have the clocks for it FWIW, but that doesn't > necessarily mean they're consumed > > Konrad