From nobody Mon Feb 9 01:21:26 2026 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DADD42C15B5 for ; Fri, 23 Jan 2026 19:45:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769197542; cv=pass; b=Xd7i8udZT17xUK3WibSwi0UPZcZUdhE1/iPendytF6TC/B5WrDe/4WcwLa+BiPfS8NCMRPj+WSsBkkdjtcEdA/k90/mEJ5x6kcXKnHJVklnJU20mJXRlgiLqWNewu8B3Ssg/7WOt/IhNR57eXRGuzrmGA18B/SwTQXDt0oTQmuI= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769197542; c=relaxed/simple; bh=E6w27phQuF7b65tQ6QnE4cyuh1uIaL5CVKufSM6cTWw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=FS+NNNGWrlkazWK2Pu571fEJrWoT46qIF8xVHH8ba7wreUprNi8YVUGNq7uiK7NbWBjNxXjLwL2TAlkOgOIE3aurIqXex6c/TP+JDSpWj/dcO1+EZbTYe6M8VENInpOfDpCj1R9tVVVHynJxdeMoYWg4wMBk5Kjy9RL1RsB/QQc= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=NrcgTu2L; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="NrcgTu2L" ARC-Seal: i=1; a=rsa-sha256; t=1769197514; cv=none; d=zohomail.com; s=zohoarc; b=M46UzeG5oxoiCwszLu0Dv9RhzHZr/3x6DcBjxIHm5hr/6b7tp59zxPQMwzYBBkXvGRR7GL/PeC2IRH1Z+Kngl12T2rLH4J9N+3LjylkCoB3gq/mLP2veGACXblQZTaPjZUUXt65a3W5SefUUlW+7/uPKdocnyYIc9tj+Ufbb68w= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1769197514; 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=L97jc63KKwlERs1XaD4aOTXye/NUs+d9FajbwfZz7iw=; b=QGF2kDu37lrhZ4muSxUnbOLXRfFBiBUYVYNglghnTjd31g6BZqJbRoP9wu0i5Igg5rCBMa7l+/8JTWCQjgbBfg7DwNbaTM8KXXIJ36q3Fyoebk53YJKzu+8KVF+SERCbLdei1MQge1xokHQ5PmpnaO/29gAQ2lgQG00u5U96jq8= 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=1769197514; 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=L97jc63KKwlERs1XaD4aOTXye/NUs+d9FajbwfZz7iw=; b=NrcgTu2Lx5UI8boFu5JaVEuNiyM8vzHLPZjdylwEM5E6ZAg6EcQ/oqZJt+dg2s0f 93UIup2OqJsYgLEgVIOW11tWBJIrWE3tdYxjsNMFS0P4oMMOClbkW6ua1rWVzdWUadf 5+xCLZQtFWZ5nHS307Kb/gVFgiDs03yaygAq0my4= Received: by mx.zohomail.com with SMTPS id 1769197512654833.8088981435692; Fri, 23 Jan 2026 11:45:12 -0800 (PST) From: Nicolas Frattaroli Date: Fri, 23 Jan 2026 20:44:03 +0100 Subject: [PATCH v6 2/4] drm: Send per-connector hotplug events 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: <20260123-hot-plug-passup-v6-2-aaaf61d960bb@collabora.com> References: <20260123-hot-plug-passup-v6-0-aaaf61d960bb@collabora.com> In-Reply-To: <20260123-hot-plug-passup-v6-0-aaaf61d960bb@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 From: Marius Vlad Use the new pending_hp member of drm_connector to always send per-connector hotplug events for those connectors that need it, rather than sending a global event, or only an event for one connector. On the HPD (Hot Plug Detect) path this change notifies all connectors, rather than just first changed connector. The polling path is changed to no longer send a connector-less hotplug event, but similarly send a hotplug event for each changed connector. Signed-off-by: Marius Vlad Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/drm_probe_helper.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe= _helper.c index 91de34a25bf8..b60b1ef39748 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -860,8 +860,14 @@ static void output_poll_execute(struct work_struct *wo= rk) mutex_unlock(&dev->mode_config.mutex); =20 out: - if (changed) - drm_kms_helper_hotplug_event(dev); + if (changed) { + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (connector->pending_hp) + drm_kms_helper_connector_hotplug_event(connector); + } + drm_connector_list_iter_end(&conn_iter); + } =20 if (repoll) schedule_delayed_work(delayed_work, DRM_OUTPUT_POLL_PERIOD); @@ -1124,10 +1130,16 @@ bool drm_helper_hpd_irq_event(struct drm_device *de= v) drm_connector_list_iter_end(&conn_iter); mutex_unlock(&dev->mode_config.mutex); =20 - if (changed =3D=3D 1) + if (changed =3D=3D 1) { drm_kms_helper_connector_hotplug_event(first_changed_connector); - else if (changed > 0) - drm_kms_helper_hotplug_event(dev); + } else if (changed > 0) { + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (connector->pending_hp) + drm_kms_helper_connector_hotplug_event(connector); + } + drm_connector_list_iter_end(&conn_iter); + } =20 if (first_changed_connector) drm_connector_put(first_changed_connector); --=20 2.52.0