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Mon, 26 Oct 2026 02:44:33 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c46bd34f465sm297052466b.8.2026.10.26.02.44.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 26 Oct 2026 02:44:32 -0700 (PDT) Message-ID: <40720fec-3147-40d0-bb0b-44a5a89ba0c9@oss.qualcomm.com> Date: Mon, 26 Oct 2026 10:44:30 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 13/14] drm/msm/mdp4: disable the vdd regulator on teardown To: Dmitry Baryshkov , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <20261024-msm-kms-destroy-fixes-v3-0-66a30120a5ea@oss.qualcomm.com> <20261024-msm-kms-destroy-fixes-v3-13-66a30120a5ea@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261024-msm-kms-destroy-fixes-v3-13-66a30120a5ea@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=G7GJgNk5 c=1 sm=1 tr=0 ts=6adf2102 cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=pXRCLyShJLD6FikErHUA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-ORIG-GUID: zru5r2bS8Hf666xAC6njhbuYj7jq9ef9 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDI2MDAzOCBTYWx0ZWRfX7IBWiG12oXe1 Vx9G4wvTNAYy8ZFp2fV5bUJqm/kW7NInnn+czpKnWPnKkStdI7eW3N4MucSx5SdKiVRDuPW5T2M Fs79+HNjCxhFEqwzZj9/3XYhcrAj4Uk= X-Proofpoint-GUID: zru5r2bS8Hf666xAC6njhbuYj7jq9ef9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDI2MDAzOCBTYWx0ZWRfX4sjgEWLTc7AV UaJEGxfdRjkfRJ5hmfeROfQyFA45WAcTWg9bibZ/s7XI3VUsgy1nzgr6+2+AyeT9Os3SxHzjLwV OA9TEEGrM1fID2CyvnaFrIcmhQlYm+K6ElizOCeF7+S6ZnGiA6C6+qphZn5w9wXBjd/dzWis+Vp Een3TV9ILLL5yHglEC9z6rjKtTWRecehsHbCmPmTpiTskL6ScBrK18EQJyXmpD+oAst6EaQ55th LkU0+sUT2tam+FUax0cYUwpDq+Z6TzDujT5rUOzWDTaEMb4KzA/E2ozksrkbn4w2paNJTuDwsR9 CbzC/6cuR7yKRtcgplNyassOWjW/RMIobW/CvVAGxMW+2PyK9OhLcOmOfnnNGPqe4eJr/2L/Kju Ukv4NB3hTBB6vV9Y5AufKkwy6rd0Y/aIvla6isoRFfb2mi3+VEvxk1lJPzh2cenZbV4yQKyTF1t tf/i0eaiFzAWxIWK/6A== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-26_01,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 phishscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610260038 On 10/24/26 1:19 AM, Dmitry Baryshkov wrote: > mdp4_kms_init() enables the optional vdd regulator, but only its error > path disables it again: unbinding the display leaves it on, and the > regulator core warns when the devm-managed exclusive handle is released > while enabled. > > Disable it again in mdp4_destroy(). > > Fixes: c8afe684c95c ("drm/msm: basic KMS driver for snapdragon") > Assisted-by: LLM > Signed-off-by: Dmitry Baryshkov > --- Reviewed-by: Konrad Dybcio Konrad