From nobody Sun Dec 14 19:13:33 2025 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (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 88B0F13C8F8 for ; Thu, 9 May 2024 08:58:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715245094; cv=none; b=eRl1rSHT6NVgkPDQb8xdhGGnYm4n8j9FipoDKPoRaCxV4n60BwhObwq2DK6HRugwCBQy6OD3J/1MSA1u0rnmJz7Tv0wPK4xqhkXxJPUUIK9Ch5idJge43TNUMwXLrnbWYtxqJ4Wpxqn06oM3qidQjmynjjSFDxIhiQDb7+Q0XWs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715245094; c=relaxed/simple; bh=Xu2WCirexobQIh25VikC3MIOnC63W3f4KDUKltXAkeA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=hhyXpeXjP3Z9GX3OQdygIUW4LyXwC78vDemEh2+uxwNTJ3Wz44nrXR/kIKhsZ6TvrmicJzGd8LkmTGdtb/iKG/Ovn3JAeaJAKOQ1WyONvmb83r49vCJZe4IbL8XD7I+5GWc0lapRfWvVvErxLchuVApwU1yk23y3pV6JlPKmdBY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 3dbb7bfa0de211ef9305a59a3cc225df-20240509 X-CID-O-RULE: Release_Ham X-CID-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.37,REQID:4de40844-5ccd-4772-b5d8-70320bbaec82,IP:10, URL:0,TC:0,Content:0,EDM:0,RT:0,SF:-11,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:-1 X-CID-INFO: VERSION:1.1.37,REQID:4de40844-5ccd-4772-b5d8-70320bbaec82,IP:10,UR L:0,TC:0,Content:0,EDM:0,RT:0,SF:-11,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-1 X-CID-META: VersionHash:6f543d0,CLOUDID:8d15c9d744e307d403f4a7dd4da8004e,BulkI D:240509165804T4MFGNYY,BulkQuantity:0,Recheck:0,SF:25|17|19|44|66|102,TC:n il,Content:0,EDM:-3,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,CO L:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD,TF_CID_SPAM_FSI X-CTIC-Tags: HR_CC_CHARSET, HR_CC_CHARSET_NUM, HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NAME HR_CC_NO_NAME, HR_CHARSET, HR_CHARSET_NUM, HR_CTE_8B, HR_CTT_MISS HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_NAME, HR_SJ_LANG HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM, HR_SJ_PHRASE, HR_SJ_PHRASE_LEN HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT, HR_TO_NAME, DN_TRUSTED SRC_TRUSTED, SA_TRUSTED, SA_EXISTED, SN_TRUSTED, SN_EXISTED SPF_NOPASS, DKIM_NOPASS, DMARC_NOPASS, CIE_BAD, CIE_GOOD CIE_GOOD_SPF, GTI_FG_BS, GTI_RG_INFO, GTI_C_BU, AMN_T1 AMN_GOOD, AMN_C_TI, AMN_C_BU, ABX_MISS_RDNS X-UUID: 3dbb7bfa0de211ef9305a59a3cc225df-20240509 X-User: oushixiong@kylinos.cn Received: from localhost.localdomain [(116.128.244.169)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA) with ESMTP id 931486327; Thu, 09 May 2024 16:58:02 +0800 From: oushixiong To: Alex Deucher Cc: =?UTF-8?q?Christian=20K=C3=B6nig?= , David Airlie , Daniel Vetter , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Xinhui.Pan@amd.com, Shixiong Ou Subject: [PATCH] drm/radeon: Delay Connector detecting when HPD singals is unstable Date: Thu, 9 May 2024 16:57:58 +0800 Message-Id: <20240509085758.123046-1-oushixiong@kylinos.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Shixiong Ou In some causes, HPD signals will jitter when plugging in or unplugging HDMI. Rescheduling the hotplug work for a second when EDID may still be readable but HDP is disconnected, and fixes this issue. Signed-off-by: Shixiong Ou --- drivers/gpu/drm/radeon/radeon_connectors.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/r= adeon/radeon_connectors.c index b84b58926106..cf0114ca59a4 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1267,6 +1267,16 @@ radeon_dvi_detect(struct drm_connector *connector, b= ool force) goto exit; } } + + if (dret && radeon_connector->hpd.hpd !=3D RADEON_HPD_NONE && + !radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) && + connector->connector_type =3D=3D DRM_MODE_CONNECTOR_HDMIA) { + DRM_DEBUG_KMS("EDID is readable when HPD disconnected\n"); + schedule_delayed_work(&rdev->hotplug_work, msecs_to_jiffies(1000)); + ret =3D connector_status_disconnected; + goto exit; + } + if (dret) { radeon_connector->detected_by_load =3D false; radeon_connector_free_edid(connector); --=20 2.17.1