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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-66350d6ec93sm1270516a12.27.2026.03.13.05.38.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 13 Mar 2026 05:39:00 -0700 (PDT) Message-ID: Date: Fri, 13 Mar 2026 13:38:57 +0100 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 2/2] arm64: dts: qcom: sdm845-xiaomi-beryllium-tianma: Disable MDSS To: David Heidelberg , Dmitry Baryshkov Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, Petr Hodina References: <20260311-beryllium-fb-v1-0-408a580d125e@ixit.cz> <20260311-beryllium-fb-v1-2-408a580d125e@ixit.cz> <137c19a3-136a-4e0e-b4ea-8cc474172d81@ixit.cz> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <137c19a3-136a-4e0e-b4ea-8cc474172d81@ixit.cz> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: tlCryZf1AabSAIwyq2yIhN5O8ZY_f2qV X-Proofpoint-GUID: tlCryZf1AabSAIwyq2yIhN5O8ZY_f2qV X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzEzMDEwMCBTYWx0ZWRfXxwDJM2ry+NaE fPBpauBBnJUpUuFm/L8u2i6vkM42L3sFeRkH5wa16+4jAFlPPNYry79PjMJ/p41tgNDmgB3yHO4 HXy+rU786yBladBOrNFEzmG1qo84RqROUH2va7nen4xIugzE6Ps+BkWeBvGpBYZ/b53/bOJZLPK uH+vS8jkJFdnkvpNc+5vXW02emfQGsWGfOLPNbxDDbc/5bd5h4BNEiT01L+tq8xSBDLG2lo1AwI 0WT924I+wKZp0Qo/lXsK1V7jB0S/ix6ABZtmSgawbYRg7khGR9cormYA6Ltv5UfAFqChMvAUyoD 4asqff1p/WWkV0bm7tRUKSthvnaMw8toArEgikLQCRj0XJ7vjgX8xuJjkyJSLQDSAqxe0XNiZO+ lSYQJIIG4nkbv6Qnk71yTRFJjozwzWkqKS2uJSK917VZ5MK7NjgGRLqJDHZCMBPXlZjNpQOMye3 qqpXd/t1QwElhG4Xjng== X-Authority-Analysis: v=2.4 cv=BpiQAIX5 c=1 sm=1 tr=0 ts=69b40566 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=sfOm8-O8AAAA:8 a=jvAo0GstzFGwFXuFv2AA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 a=TvTJqdcANYtsRzA46cdi:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-13_02,2026-03-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 phishscore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 spamscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603130100 On 3/12/26 12:25 PM, David Heidelberg wrote: > On 12/03/2026 03:46, Dmitry Baryshkov wrote: >> On Wed, Mar 11, 2026 at 07:44:30PM +0100, David Heidelberg via B4 Relay wrote: >>> From: Petr Hodina >>> >>> Currently the panel driver for tianma is broken. >> >> How broken? Can it be fixed instead? > > No output to the panel. Definitely can be fixed, but current situation is that we don't have anyone who has available time or device to tackle the problem. > > I know it's not optimal, but on a way to achieve working mainline phones, my thinking is better to mark it as broken in mainline until someone fixes (assuming Fixes tag and backport) then just going black display (when we have at least framebuffer now). If you have a person with limited time, would simply copying this: 2b973ca48ff3 ("drm/panel: sony-td4353-jdi: Enable prepare_prev_first") fix it? Konrad