From patchwork Fri Aug 5 10:14:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmV4LUJDIENoZW4gKOmZs+afj+i+sCk=?= X-Patchwork-Id: 12937152 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47F72C00140 for ; Fri, 5 Aug 2022 10:15:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240447AbiHEKPN (ORCPT ); Fri, 5 Aug 2022 06:15:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240357AbiHEKPK (ORCPT ); Fri, 5 Aug 2022 06:15:10 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 861016D546; Fri, 5 Aug 2022 03:15:09 -0700 (PDT) X-UUID: 726583ceab364aa0b571e73912791f64-20220805 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=F1cPyxL/oMzgkK3wQODow7JCRQ8fI2vRMiKY1vsN0DI=; b=gy57ZtiM+mANv9BpvcKXI6DSPtv2tIqaXpuAmX/ijVWPG8+tCOfZG1iVMLpQNKIWu6c5e9X02IIxI2Ya4oV3on3es3mZJqoMSj3AUGvPqSLk9HSd0dqa4U4F1+Cm6G863OqDrny6mfJ5/n7gU7hTIAZNv4AejMP90xi9i+15l/A=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.8,REQID:89567ad1-2dc6-4511-a3cc-6e5512645959,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACT ION:release,TS:-5 X-CID-META: VersionHash:0f94e32,CLOUDID:f97007ae-9535-44a6-aa9b-7f62b79b6ff6,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil ,QS:nil,BEC:nil,COL:0 X-UUID: 726583ceab364aa0b571e73912791f64-20220805 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1175634165; Fri, 05 Aug 2022 18:15:01 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Fri, 5 Aug 2022 18:15:00 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 5 Aug 2022 18:15:00 +0800 From: Bo-Chen Chen To: , , , , , , , , , CC: , , , , , , , , , , , , , , Bo-Chen Chen Subject: [PATCH v16 6/8] drm/mediatek: set monitor to DP_SET_POWER_D3 to avoid garbage Date: Fri, 5 Aug 2022 18:14:57 +0800 Message-ID: <20220805101459.3386-7-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220805101459.3386-1-rex-bc.chen@mediatek.com> References: <20220805101459.3386-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Set the monitor power state to DP_SET_POWER_D3 to avoid garbage. Signed-off-by: Jitao Shi Signed-off-by: Bo-Chen Chen Reviewed-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_dp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c index 487f3ed0c19f..75a2a0645d3d 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -1782,6 +1782,11 @@ static void mtk_dp_bridge_atomic_disable(struct drm_bridge *bridge, { struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge); + if (mtk_dp_plug_state(mtk_dp)) { + drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3); + usleep_range(2000, 3000); + } + mtk_dp_video_mute(mtk_dp, true); mtk_dp->enabled = false;