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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-31c23006d72sm5202274a91.1.2025.07.11.17.58.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Jul 2025 17:58:38 -0700 (PDT) From: Jessica Zhang Date: Fri, 11 Jul 2025 17:58:13 -0700 Subject: [PATCH 08/19] drm/msm/dp: Don't delay plug-in handling when ST_DISCONNECT_PENDING 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: <20250711-hpd-refactor-v1-8-33cbac823f34@oss.qualcomm.com> References: <20250711-hpd-refactor-v1-0-33cbac823f34@oss.qualcomm.com> In-Reply-To: <20250711-hpd-refactor-v1-0-33cbac823f34@oss.qualcomm.com> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Jessica Zhang Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Yongxing Mou X-Mailer: b4 0.15-dev-a9b2a X-Developer-Signature: v=1; a=ed25519-sha256; t=1752281905; l=1204; i=jessica.zhang@oss.qualcomm.com; s=20230329; h=from:subject:message-id; bh=PV2gItPOtD2ro/W717vvW5Rzvp3X4mFntv6qSdc7eTA=; b=VML5o3LiZxvvLZFWgUSkZY0+K/ladfTLPXoxspXXguFKL4U2pE48BScPgV8l7YOhWVCer66r0 /K5AxoiYvXuARwR5PkxRx2hKkxakVMScUQFz5NnmG6IJjQoT3UJZfKl X-Developer-Key: i=jessica.zhang@oss.qualcomm.com; a=ed25519; pk=gAUCgHZ6wTJOzQa3U0GfeCDH7iZLlqIEPo4rrjfDpWE= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzEyMDAwNSBTYWx0ZWRfX/0YpLDzAuSOa 65yxvVEf0BfzMgSpSQP2/Nril4glazLzJRSqtgYDFvTOtWXeG4fkXY0yNEF0V/VdqUFLG1YthUN nr2QcNC3H3oOJzvcEqq7uJpJMJP5+NThT58FGNhpWpdOw58PP/bIplN6qcvv7azzPLHvmJk/l4r y/6BT7gG5nYqBH+ke8IhtpWWqLUXnAdJkCmUxPobsvBvkCSq21gxbj9ZaQel9kOQH/YXtayWhQH ik6LWnzcflUJhyDr61GUIZZPWvF50OilnRFLpUF7QLPpt9+cV6oBK2pgy7QGihNKboDDxTro2og 8XeUfa3xkcgX4QSaG0mc+ZOZ8c1weVW5x5p6V2DBscOVn5nMkTsDrz9eEj4iL87OQv/kIVWbYV2 3phmLLSVJqFrJtPIdXvwva6+qBHxh0MaeLjh6YFCjF2c4eI/Lu2uvDdPstUFilmh7S/c1Ia0 X-Proofpoint-GUID: 6RQkiEyN-tdrXVPE-DT1taRvyGsmR8vp X-Authority-Analysis: v=2.4 cv=Xuf6OUF9 c=1 sm=1 tr=0 ts=6871b340 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=EUspDBNiAAAA:8 a=Yywnbx7U6RLlrUaFA7wA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-ORIG-GUID: 6RQkiEyN-tdrXVPE-DT1taRvyGsmR8vp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.7,FMLib:17.12.80.40 definitions=2025-07-11_07,2025-07-09_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 malwarescore=0 adultscore=0 mlxscore=0 phishscore=0 mlxlogscore=951 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2507120005 Since there is already a return early for when the DP link is ready and because link_ready is only set after the DP is connected and link training has completed, the DP will already be disconnect for plug-in handling to happen. Thus, there is no need delay the plug-in handling until ST_DISCONNECTED and we can drop this ST_DISCONNECT_PENDING handling. Signed-off-by: Jessica Zhang --- drivers/gpu/drm/msm/dp/dp_display.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/d= p_display.c index 1ce8051b116a..98f5274f123e 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -602,13 +602,6 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_displa= y_private *dp, u32 data) =20 dp->msm_dp_display.connected =3D true; =20 - if (state =3D=3D ST_DISCONNECT_PENDING) { - /* wait until ST_DISCONNECTED */ - msm_dp_add_event(dp, EV_HPD_PLUG_INT, 0, 1); /* delay =3D 1 */ - mutex_unlock(&dp->event_mutex); - return 0; - } - ret =3D pm_runtime_resume_and_get(&pdev->dev); if (ret) { DRM_ERROR("failed to pm_runtime_resume\n"); --=20 2.50.1