From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1AA5EE9A036 for ; Tue, 17 Feb 2026 19:01:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7E2A910E1D6; Tue, 17 Feb 2026 19:01:10 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="fsZfTCEN"; dkim-atps=neutral Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7659910E4E5 for ; Tue, 17 Feb 2026 19:01:09 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; t=1771354856; cv=none; d=zohomail.com; s=zohoarc; b=l3ZHZSLmx6nemgYDe4yIG3Tk0f2od/tGCpeMB0z7+mdY4GpTRrvxNBl+rJ6lroBEvYIrcEy9+VknHumQ8qO/Yv9aoD7cPavDEB/tBKd/2SeEpz67wtl3qF2zvyzw5d1KwpL487U68sUIqtHPV8A08k0B0vI9iNQryXu0vqf95I8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1771354856; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=/d0BRo433OI/KcFL3NEdQN9ck7d6byNdXS2fhxmuxJ8=; b=M+zjik/w47L1RCqsGSUwD7P/XEHF+CaRtRTC1xM3gxeIb71OPW+TQIEfm6zakB1gIyovybBI8pDDHueLL0xVxk8NRW3tFzV1Q2s8TqA91hIHltNaJ4a13aDi+CeM0ZLhV4D0S7rapVk+uPMU+D1iEaZdCrBoDmAO0EYGZkOR+Sk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1771354856; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=/d0BRo433OI/KcFL3NEdQN9ck7d6byNdXS2fhxmuxJ8=; b=fsZfTCENji5PFVGwv4xZTsaklIYXRoxSuY94vf+twCICwbUDiESFmAsiyLokO/Av tYmCEunrLe0V1IlhlT/D3i+oDRv1QGfpMoKN060vtYZdhQ3vyCztoL3TKk/4oaSWkZq LXk2IlF2u2+DqxtPrmR8KtbSetc8cKkmWNV6SDHE= Received: by mx.zohomail.com with SMTPS id 1771354854023702.6782797187954; Tue, 17 Feb 2026 11:00:54 -0800 (PST) From: Nicolas Frattaroli Date: Tue, 17 Feb 2026 20:00:23 +0100 Subject: [PATCH v7 1/2] drm: Introduce pending_hp to drm_connector MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260217-hot-plug-passup-v7-1-f8221b2aab51@collabora.com> References: <20260217-hot-plug-passup-v7-0-f8221b2aab51@collabora.com> In-Reply-To: <20260217-hot-plug-passup-v7-0-f8221b2aab51@collabora.com> To: =?utf-8?q?Ville_Syrj=C3=A4l=C3=A4?= , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Louis Chauvet , Haneen Mohammed , Melissa Wen , Daniel Stone , Ian Forbes , Dmitry Baryshkov Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Nicolas Frattaroli , Marius Vlad X-Mailer: b4 0.14.3 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: Marius Vlad Introduce a new boolean variable used to track whether a connector has changed its status since the last hotplug event for it was sent to userspace. It is used by both the polling and HPD path. A subsequent change will make use of this new member to propagate per-connector udev hotplug events to userspace, rather than sending a global hotplug event. Signed-off-by: Marius Vlad Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/drm_connector.c | 1 + drivers/gpu/drm/drm_probe_helper.c | 17 +++++++++++++++++ drivers/gpu/drm/drm_sysfs.c | 2 ++ include/drm/drm_connector.h | 3 +++ 4 files changed, 23 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index aec05adbc889..67497d0e41f1 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -274,6 +274,7 @@ static int drm_connector_init_only(struct drm_device *dev, /* provide ddc symlink in sysfs */ connector->ddc = ddc; + connector->pending_hp = false; INIT_LIST_HEAD(&connector->head); INIT_LIST_HEAD(&connector->global_connector_list_entry); diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index d4dc8cb45bce..f8cbd6713960 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -732,6 +732,17 @@ EXPORT_SYMBOL(drm_helper_probe_single_connector_modes); */ void drm_kms_helper_hotplug_event(struct drm_device *dev) { + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + + mutex_lock(&dev->mode_config.mutex); + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + connector->pending_hp = false; + } + drm_connector_list_iter_end(&conn_iter); + mutex_unlock(&dev->mode_config.mutex); + drm_sysfs_hotplug_event(dev); drm_client_dev_hotplug(dev); } @@ -748,6 +759,10 @@ void drm_kms_helper_connector_hotplug_event(struct drm_connector *connector) { struct drm_device *dev = connector->dev; + mutex_lock(&dev->mode_config.mutex); + connector->pending_hp = false; + mutex_unlock(&dev->mode_config.mutex); + drm_sysfs_connector_hotplug_event(connector); drm_client_dev_hotplug(dev); } @@ -837,6 +852,7 @@ static void output_poll_execute(struct work_struct *work) old_epoch_counter, connector->epoch_counter); changed = true; + connector->pending_hp = true; } } drm_connector_list_iter_end(&conn_iter); @@ -1101,6 +1117,7 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev) first_changed_connector = connector; } + connector->pending_hp = true; changed++; } } diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index b01ffa4d6509..53076c2afd12 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -216,6 +216,8 @@ static ssize_t status_store(struct device *device, connector->base.id, connector->name, old_force, connector->force); + connector->pending_hp = true; + connector->funcs->fill_modes(connector, dev->mode_config.max_width, dev->mode_config.max_height); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index c18be8c19de0..cd9787c54425 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -2191,6 +2191,9 @@ struct drm_connector { /** @force: a DRM_FORCE_ state for forced mode sets */ enum drm_connector_force force; + /** @pending_hp: true if connector changed since last hotplug event */ + bool pending_hp; + /** * @edid_override: Override EDID set via debugfs. * -- 2.53.0