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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-59a1861f2e6sm5071562e87.69.2025.12.24.07.42.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Dec 2025 07:42:34 -0800 (PST) From: Dmitry Baryshkov Date: Wed, 24 Dec 2025 17:42:31 +0200 Subject: [PATCH v3 2/3] drm/msm/dpu: fix CMD panels on DPU 1.x - 3.x Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251224-mdp5-drop-dpu3-v3-2-fd7bb8546c30@oss.qualcomm.com> References: <20251224-mdp5-drop-dpu3-v3-0-fd7bb8546c30@oss.qualcomm.com> In-Reply-To: <20251224-mdp5-drop-dpu3-v3-0-fd7bb8546c30@oss.qualcomm.com> To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Alexey Minnekhanov , David Airlie , Simona Vetter , Alexey Minnekhanov Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1402; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=/MJ75vhsI5cjj4o92iPu5gq8x/vgx9is2mnNAWB6edk=; b=kA0DAAoBizyKPgIpKNUByyZiAGlMCeehXSUbi4oIEysRtaTYV82kp6fPSKz0qxAudd3ZbyiHs IkBMwQAAQoAHRYhBExwhJVcsmNW8LiVf4s8ij4CKSjVBQJpTAnnAAoJEIs8ij4CKSjVpYUIAINc jhZ0GS07jX+JaZ6RIjwLf4EnHghhkF8Ljv25l2LrEhuGSLdFXOZJA5AizKoC6B5zSZITozzTGXF swym0Mwgf9NJGZn1cQniwIIocKxjfa4fwdPa4I3+1Si3afkSX20b/C8BSSOGXYVIM0tLGPJpJjg UIUVBnHgvOZpWYzJn84o6pmBJEh2TI4jui7i4GnyUAQadF6NPOZazfaPcw01PK9VmHofFFI1KQF 6ROzVGBiz88+cQSZgRHZZfCJYyxpSyBz07i7pnziU6lMZoI6AttT6Ah1MyyHyaZEPbocKIHJTy8 XsDFIEKuZSeqqeT06SrV+7vlyj493Xf+KrLRxFg= X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-ORIG-GUID: xB4NFT72ytJYItsmQ5XzGIB_yZrzR-de X-Proofpoint-GUID: xB4NFT72ytJYItsmQ5XzGIB_yZrzR-de X-Authority-Analysis: v=2.4 cv=aOf9aL9m c=1 sm=1 tr=0 ts=694c09ec cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=Gbw9aFdXAAAA:8 a=EUspDBNiAAAA:8 a=3DtPeeBlMjcqd2FmxTYA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 a=9vIz8raoGPyDa4jBFAYH:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjI0MDEzOCBTYWx0ZWRfXyOObmhn0ISKM qc7SWnrpPBN9yfYIfgsqF2KGlEkPM5PORdj3fsrmHiKOd+jXYY+iRN8+FfegLCguVJqOb5E1yec 9/jzDlryd4hBw2lqaAWXYbmvFwpEjuLQ37KVTECxXj/Nn1wICRhxitq+3RjaDWyWosHu5S9G5s5 8gkT8aAf156BqyWzcq4s/6NSKpTzwmE5GQiaDWzo9aEg2EXpfpYBQetNaJTXL7QKWsrptgK4bJV MVRLDLTj0bzxE/u7UlsX14c7u5fmcVElDjaAz8lcjEkfKOmxtrf8hGLO2XyOK3Uqewbu7jFBKa0 nfGDnCJtlooz3Yfq2Ra2ot87jr7wzadkuiPage/ozAy2jXP9NndD26xVCztToA1OZMDudN7WXOl JQ/ngyWN6oAxvxsXFaZKlSJzSE1ZGCfEg/gKmfHjMZA0Hat4sxiPA3z9Uonsk72qxKYvc1/JqGw 0y2zv4Es/l8QMl+x9KA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-24_04,2025-12-22_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 suspectscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 malwarescore=0 priorityscore=1501 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512240138 DPU units before 4.x don't have a separate CTL_START IRQ to mark the begin of the data transfer. In such a case, wait for the frame transfer to complete rather than trying to wait for the CTL_START interrupt (and obviously hitting the timeout). Fixes: 050770cbbd26 ("drm/msm/dpu: Fix timeout issues on command mode panel= s") Reported-by: Alexey Minnekhanov Closes: https://lore.kernel.org/r/8e1d33ff-d902-4ae9-9162-e00d17a5e6d1@post= marketos.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers= /gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c index 0ec6d67c7c70..4faed35f146b 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c @@ -681,7 +681,8 @@ static int dpu_encoder_phys_cmd_wait_for_commit_done( if (!dpu_encoder_phys_cmd_is_master(phys_enc)) return 0; =20 - if (phys_enc->hw_ctl->ops.is_started(phys_enc->hw_ctl)) + if (!phys_enc->irq[INTR_IDX_CTL_START] || + phys_enc->hw_ctl->ops.is_started(phys_enc->hw_ctl)) return dpu_encoder_phys_cmd_wait_for_tx_complete(phys_enc); =20 return _dpu_encoder_phys_cmd_wait_for_ctl_start(phys_enc); --=20 2.47.3