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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5aa32cba880sm1816148e87.32.2026.05.24.03.33.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 May 2026 03:33:45 -0700 (PDT) From: Dmitry Baryshkov Date: Sun, 24 May 2026 13:33:33 +0300 Subject: [PATCH v6 05/10] drm/msm/dp: Drop EV_USER_NOTIFICATION MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260524-hpd-refactor-v6-5-cf3ab488dd7b@oss.qualcomm.com> References: <20260524-hpd-refactor-v6-0-cf3ab488dd7b@oss.qualcomm.com> In-Reply-To: <20260524-hpd-refactor-v6-0-cf3ab488dd7b@oss.qualcomm.com> To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Kuogee Hsieh , Yongxing Mou Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jessica Zhang , Bjorn Andersson , Konrad Dybcio , Val Packett X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=4470; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=7YL2ddERO+WKYrbTK+cxw/v4FUdiddSRzjsP3v7dOZY=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBqEtP8GADJovtb7rXvgjO2Y/Y256UfXFTz5vVkj Y27da5YrWqJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCahLT/AAKCRCLPIo+Aiko 1WZjCACZl57V2MEbFbABu1TZ94QulG4M1cMv+VkqWhuzs7MQFLmzy166Yi+2PPo/Y5mQyyW7jmw SaaqWdfaqBDp3uI3JzpbYeWxH0J6ZAiXkQGJCfVKlKriHN5DJ3t32lYBEZmbLYy2sSwS+fAyOT6 Ki45bFDNvsTv4CNxJ/pAHoN0yeR9rmVbFztEPGTT1nWgS31TngmP49SAtj2A03OU6q1+rZ4Vqx0 sR9AaFNVgqyVkG8ellSQqmLVdEQY6A4X7LogzvFtRdBTOFxhGNnQ02VmbbcPK1B3wRDeu4yR2nB EUAhewevR+3uDLNdC6uC11jQi3HEmIgFL8CBSOm9IqJb0mVq X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-ORIG-GUID: S0UBWHizcAcuvuwamTdsyDLqqwzQjxJw X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTI0MDEwNyBTYWx0ZWRfX8VIx5YLyzgaT DbTJv6WiqDzlpVeuvvYdSxp0k7lYpM4HozYLpwvu5oUfvHjFlHf9wOe/LC7cqpIYWthy3mBlXMe 7DTZqFCJ0oLTapRzY6Vm2oYlPtNEguEQaGTc56C10rwo/oOB/9xyyw5dUR2+6MLEXu2VZpdDvY3 Ok4GO5Ex+cVPxaaALNTPmuVWfRadMjlaZQ06DCN/pq+d/FkhDlI9Rs/zQbpQHiEhyA3W3j7fet8 w9Kq9Y5LJ3vH1gP8SdZdZcZt43kQEAtZQwmbRiL55jiQBhnq3jAeRGuy7/ErkYQkjE5vusIPv22 Y+jqePoVQbhtAjzYGqT4kWZBweKu62yQe7oYboL3tpsHpAxg9LVcpQyBiFyc/Li3cFotpg6Lxy7 zSTeklFMDiJvTJ2v7AT+bM+PpVbcKlnyYKWoFjTt9G3Qbqm9119BXkdkhvkoWJ5lULoaM0OEDRD w9tonmEDwvlrWxT30Jg== X-Authority-Analysis: v=2.4 cv=H7jrBeYi c=1 sm=1 tr=0 ts=6a12d40c cx=c_pps a=wuOIiItHwq1biOnFUQQHKA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=gW5k9mFOS1cgrKxYKbgA:9 a=QEXdDO2ut3YA:10 a=XD7yVLdPMpWraOa8Un9W:22 X-Proofpoint-GUID: S0UBWHizcAcuvuwamTdsyDLqqwzQjxJw 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=2026-05-24_03,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 suspectscore=0 clxscore=1015 bulkscore=0 impostorscore=0 spamscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605240107 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Jessica Zhang Currently, we queue an event for signalling HPD connect/disconnect. This can mean a delay in plug/unplug handling and notifying DRM core when a hotplug happens. Drop EV_USER_NOTIFICATION and signal the IRQ event as part of hotplug handling. Signed-off-by: Jessica Zhang Reviewed-by: Bjorn Andersson Acked-by: Konrad Dybcio Reviewed-by: Konrad Dybcio Tested-by: Val Packett # x1e80100-dell-latitude-7455 Tested-by: Yongxing Mou # Hamoa IOT EVK, QCS8300 Ride Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dp/dp_display.c | 28 ++++++++-------------------- drivers/gpu/drm/msm/dp/dp_display.h | 1 + drivers/gpu/drm/msm/dp/dp_drm.c | 2 ++ 3 files changed, 11 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 036b4a5cece5..6b76bff7c8d0 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -58,7 +58,6 @@ enum { EV_HPD_PLUG_INT, EV_IRQ_HPD_INT, EV_HPD_UNPLUG_INT, - EV_USER_NOTIFICATION, }; #define EVENT_TIMEOUT (HZ/10) /* 100ms */ @@ -344,17 +343,6 @@ static const struct component_ops msm_dp_display_comp_ops = { .unbind = msm_dp_display_unbind, }; -static void msm_dp_display_send_hpd_event(struct msm_dp *msm_dp_display) -{ - struct msm_dp_display_private *dp; - struct drm_connector *connector; - - dp = container_of(msm_dp_display, struct msm_dp_display_private, msm_dp_display); - - connector = dp->msm_dp_display.connector; - drm_helper_hpd_irq_event(connector->dev); -} - static int msm_dp_display_send_hpd_notification(struct msm_dp_display_private *dp, bool hpd) { @@ -378,7 +366,11 @@ static int msm_dp_display_send_hpd_notification(struct msm_dp_display_private *d drm_dbg_dp(dp->drm_dev, "type=%d hpd=%d\n", dp->msm_dp_display.connector_type, hpd); - msm_dp_display_send_hpd_event(&dp->msm_dp_display); + + drm_bridge_hpd_notify(dp->msm_dp_display.bridge, + hpd ? + connector_status_connected : + connector_status_disconnected); return 0; } @@ -438,7 +430,7 @@ static int msm_dp_display_process_hpd_high(struct msm_dp_display_private *dp) msm_dp_link_reset_phy_params_vx_px(dp->link); - msm_dp_add_event(dp, EV_USER_NOTIFICATION, true, 0); + msm_dp_display_send_hpd_notification(dp, true); end: return rc; @@ -507,7 +499,7 @@ static int msm_dp_display_notify_disconnect(struct device *dev) { struct msm_dp_display_private *dp = dev_get_dp_display_private(dev); - msm_dp_add_event(dp, EV_USER_NOTIFICATION, false, 0); + msm_dp_display_send_hpd_notification(dp, false); return 0; } @@ -528,7 +520,7 @@ static int msm_dp_display_handle_port_status_changed(struct msm_dp_display_priva drm_dbg_dp(dp->drm_dev, "sink count is zero, nothing to do\n"); if (dp->hpd_state != ST_DISCONNECTED) { dp->hpd_state = ST_DISCONNECT_PENDING; - msm_dp_add_event(dp, EV_USER_NOTIFICATION, false, 0); + msm_dp_display_send_hpd_notification(dp, false); } } else { if (dp->hpd_state == ST_DISCONNECTED) { @@ -1122,10 +1114,6 @@ static int hpd_event_thread(void *data) case EV_IRQ_HPD_INT: msm_dp_irq_hpd_handle(msm_dp_priv, todo->data); break; - case EV_USER_NOTIFICATION: - msm_dp_display_send_hpd_notification(msm_dp_priv, - todo->data); - break; default: break; } diff --git a/drivers/gpu/drm/msm/dp/dp_display.h b/drivers/gpu/drm/msm/dp/dp_display.h index cc6e2cab36e9..60094061c102 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.h +++ b/drivers/gpu/drm/msm/dp/dp_display.h @@ -16,6 +16,7 @@ struct msm_dp { struct platform_device *pdev; struct drm_connector *connector; struct drm_bridge *next_bridge; + struct drm_bridge *bridge; bool link_ready; bool audio_enabled; bool power_on; diff --git a/drivers/gpu/drm/msm/dp/dp_drm.c b/drivers/gpu/drm/msm/dp/dp_drm.c index 991a3ca1e6bd..528c9a40477f 100644 --- a/drivers/gpu/drm/msm/dp/dp_drm.c +++ b/drivers/gpu/drm/msm/dp/dp_drm.c @@ -340,6 +340,8 @@ int msm_dp_bridge_init(struct msm_dp *msm_dp_display, struct drm_device *dev, } } + msm_dp_display->bridge = bridge; + return 0; } -- 2.47.3