From patchwork Fri Jun 10 10:55:20 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: 12877433 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 A1F11C433EF for ; Fri, 10 Jun 2022 10:55:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8A63010E165; Fri, 10 Jun 2022 10:55:36 +0000 (UTC) Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by gabe.freedesktop.org (Postfix) with ESMTPS id 54F4610E165 for ; Fri, 10 Jun 2022 10:55:32 +0000 (UTC) X-UUID: 4e0e668297ee496db54569191e6f5c45-20220610 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.5, REQID:0641574a-661b-4f79-b635-5dcdd099059b, OB:0, LO B:0,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Release_Ham,AC TION:release,TS:90 X-CID-INFO: VERSION:1.1.5, REQID:0641574a-661b-4f79-b635-5dcdd099059b, OB:0, LOB: 0,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Spam_GS981B3D,AC TION:quarantine,TS:90 X-CID-META: VersionHash:2a19b09, CLOUDID:39d767e5-2ba2-4dc1-b6c5-11feb6c769e0, C OID:f8b2a5cf3420,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,QS:0,BEC:nil X-UUID: 4e0e668297ee496db54569191e6f5c45-20220610 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 2104911699; Fri, 10 Jun 2022 18:55:26 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Fri, 10 Jun 2022 18:55:24 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Fri, 10 Jun 2022 18:55:24 +0800 From: Bo-Chen Chen To: , , , , , , , , , Subject: [PATCH v11 08/10] drm/mediatek: set monitor to DP_SET_POWER_D3 to avoid garbage Date: Fri, 10 Jun 2022 18:55:20 +0800 Message-ID: <20220610105522.13449-9-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220610105522.13449-1-rex-bc.chen@mediatek.com> References: <20220610105522.13449-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N 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: , Cc: devicetree@vger.kernel.org, linux-fbdev@vger.kernel.org, granquet@baylibre.com, jitao.shi@mediatek.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, msp@baylibre.com, Project_Global_Chrome_Upstream_Group@mediatek.com, Bo-Chen Chen , linux-mediatek@lists.infradead.org, wenst@chromium.org, linux-arm-kernel@lists.infradead.org, angelogioacchino.delregno@collabora.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Set the monitor power state to DP_SET_POWER_D3 to avoid garbage. Signed-off-by: Jitao Shi Signed-off-by: Bo-Chen Chen --- 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 2413551bfe9f..a5ed94ca00c6 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -2043,6 +2043,11 @@ 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->train_state = MTK_DP_TRAIN_STATE_TRAINING;