From patchwork Mon Jun 27 08:03:39 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: 12896358 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 372D1C43334 for ; Mon, 27 Jun 2022 08:07:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1ncy3fW1iyzdDx1PXF7XSLQV+2NqTvnAQFU636ei8mo=; b=itnZNG0+jAgbpFGWKm6aAJCOzI 9YzjRcetWgDL1mzatUuWxySst8Dhwaz54hzEP4jiMicctnDzjBf1fm9GXijL/IkLtj1zKd8LNhgn0 3NcVbLq8IrGSdIfi2oJpFoojcwUHsvgO11TmMrfArvhkjiCPvCt2NNw8s72UqOD1T53Oc0Ezjr4Zf GmYeIoxF+lwzHjF9OT4RNnPVzKznwwxqJKSLDbtpVSGZSRm7JsR/rKN9OYnqPRkRfakMA64d7I4gU hYQlOkjgyrKywalwg3MNAbxvqM07+dlG72K61JmumAirpG8XniqnS22z3gN5QGK4V+fHxBOgC2P/q 3J94o8Pg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o5jlt-00Ge0p-Tc; Mon, 27 Jun 2022 08:07:01 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o5jl1-00GdUI-P2; Mon, 27 Jun 2022 08:06:09 +0000 X-UUID: 934af3e234314357b773adb563a2ce5a-20220627 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:59f18475-f24e-43dd-8322-58c5b448be29,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:b14ad71,CLOUDID:d19ca7d8-850a-491d-a127-60d9309b2b3e,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: 934af3e234314357b773adb563a2ce5a-20220627 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1687772321; Mon, 27 Jun 2022 01:06:01 -0700 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 27 Jun 2022 01:03:45 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Mon, 27 Jun 2022 16:03:44 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Mon, 27 Jun 2022 16:03:44 +0800 From: Bo-Chen Chen To: , , , , , , , , , CC: , , , , , , , , , , , , , Bo-Chen Chen Subject: [PATCH v12 08/10] drm/mediatek: set monitor to DP_SET_POWER_D3 to avoid garbage Date: Mon, 27 Jun 2022 16:03:39 +0800 Message-ID: <20220627080341.5087-9-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220627080341.5087-1-rex-bc.chen@mediatek.com> References: <20220627080341.5087-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220627_010607_912616_7F4B82FB X-CRM114-Status: UNSURE ( 9.71 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.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 40771ac318e7..92cbcd403a73 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -2003,6 +2003,11 @@ 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;