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Fri, 02 May 2025 23:01:37 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 542N1aju006435 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 2 May 2025 23:01:36 GMT Received: from [10.134.71.99] (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Fri, 2 May 2025 16:01:35 -0700 Message-ID: Date: Fri, 2 May 2025 16:01:35 -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 v4 1/4] drm/msm/dp: Fix support of LTTPR initialization To: Dmitry Baryshkov CC: Aleksandrs Vinarskis , Dmitry Baryshkov , Abhinav Kumar , , , , , Rob Clark , Sean Paul , Marijn Suijten , David Airlie , "Simona Vetter" , , , , Johan Hovold References: <20250430001330.265970-1-alex.vinarskis@gmail.com> <20250430001330.265970-2-alex.vinarskis@gmail.com> Content-Language: en-US From: Jessica Zhang In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Authority-Analysis: v=2.4 cv=Bv6dwZX5 c=1 sm=1 tr=0 ts=68154ed1 cx=c_pps a=JYp8KDb2vCoCEuGobkYCKw==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=GEpy-HfZoHoA:10 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=EUspDBNiAAAA:8 a=pGLkceISAAAA:8 a=VwQbUJbxAAAA:8 a=COk6AnOGAAAA:8 a=_8BcBDBh2m1gIszazZ8A:9 a=QEXdDO2ut3YA:10 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: XaX-uqJztxIlqFkB3hKB_sxlDMRA311p X-Proofpoint-ORIG-GUID: XaX-uqJztxIlqFkB3hKB_sxlDMRA311p X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTAyMDE4NyBTYWx0ZWRfX3xZ3+aKOBKI/ UlWsTeP2ait2RqBXVoLyAvTuLKb5W5R28J+rR6pL4rEdrd7aiUWNtd0zRH+ZdCDB8uaCgEWNGwe 17Fg5gSMH5LX0VaatRozTvxe+DbicBwXrqVlStE5br5RYueNNXqaJfim2nQ3/um8taDJMvZGogo 85DOpPp1O1zWg/aMXDvKs/J3kmggiiCXq52sZ8/BFsn997+bT4nlCkVUDuGAGbtinr+Asj1BZ8b ayBdtt0AUQUnmlwD/bYQinhL8sPc+0/MVMlDROeVQ3MMdKhqRROtTqgwsfYsu76/Hzr4mE9T8BO gWTJlh2ELdyJ9WPySLWGfHWP9CTJ4bxvBHy9T6cyrdeTfMUkRXTX6gdr2SG/nxIoDnJZTIR4ttB 4ayr2XiBG4pqRAbFe581NCNiT6fz2oaJeMSZpv9UxmVvJLuArEITOR468ikbCxJQsrncFQgj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-02_05,2025-04-30_01,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 clxscore=1015 mlxlogscore=999 phishscore=0 adultscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 suspectscore=0 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2505020187 On 5/2/2025 2:54 PM, Dmitry Baryshkov wrote: > On Fri, May 02, 2025 at 10:41:41AM -0700, Jessica Zhang wrote: >> >> >> On 4/29/2025 5:09 PM, Aleksandrs Vinarskis wrote: >>> Initialize LTTPR before msm_dp_panel_read_sink_caps, as DPTX shall >>> (re)read DPRX caps after LTTPR detection, as required by DP 2.1, >>> Section 3.6.7.6.1. >>> >>> Fixes: 72d0af4accd9 ("drm/msm/dp: Add support for LTTPR handling") >>> >>> Reviewed-by: Dmitry Baryshkov >>> Signed-off-by: Aleksandrs Vinarskis >>> Tested-by: Johan Hovold >>> Tested-by: Rob Clark >> >> Hi Aleksandrs, >> >> For this patch and the rest of the series: >> >> Tested-by: Jessica Zhang # SA8775P > > Were you testing in a setup with LTTPRs? Hi Dmitry, No, I have a setup with MST so I re-verified SST and MST with these changes. Thanks, Jessica Zhang >