From nobody Mon Feb 9 17:22:32 2026 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (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 196FD4437C; Mon, 7 Apr 2025 13:31:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=60.244.123.138 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744032715; cv=none; b=qqo7k0Kcf3Oru2+Y1j5eVUIwSjUDNJ1RKgpVGaoS+OxjKY2xrw8wlp2lJ4LJJ2u/ZIBnmTrkhv8Q6mEa1qN5r6XzJdRlptzpFAbfWARpSuVRl4uabFeIUWhKU9TFLasFSqhJrUXKeX4VpHT9bBr6W1Aj4i/2RMiUtVj297YYois= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744032715; c=relaxed/simple; bh=K1zVKRTMOlerezdqLw1WLLO/zTiOwTFY1n4Yqua3xEI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=GqS6vNzp5eIUfG/6dfXC1dzBEnuK4jWcxWRta+k0i/6k+ERYHhRM1hSCZEkdZCglNERN2lZ9jKvTE72esScJ/pCW9ELJlHPJpYIwKF4KN0P+82E83N0vK1BphGhCPScH+wNvfg9h4eFMBlW7iocfg1cx7FZy/AxU0TQy+JiwZRo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=MflTLccG; arc=none smtp.client-ip=60.244.123.138 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="MflTLccG" X-UUID: a64f4dee13b411f0aae1fd9735fae912-20250407 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=0TmOhe1bI1nRNV0NE53OyjwkYey+CrXkJvZIridblTc=; b=MflTLccGJpLit7Gr+NV3MbXWbzGvQ2CoWjHt7LUbcKdzXjYDXQwf0+k9+Atjys+Pr1bzpGUqb71F99soDlNhOoP65nfrI5Yza7M8ZBKdZUQ3mDlxV2hxqfeOQTOsS563CvuqS+UbYoKZSnj+w2iVHXMx4b4/uPmYazjGHCFpoz4=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.2.1,REQID:acea105c-f982-4713-9526-d499165a32b3,IP:0,UR L:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION:r elease,TS:0 X-CID-META: VersionHash:0ef645f,CLOUDID:fa98c7a5-c619-47e3-a41b-90eedbf5b947,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102,TC:nil,Content:0|50,EDM:-3 ,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV :0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: a64f4dee13b411f0aae1fd9735fae912-20250407 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1774815493; Mon, 07 Apr 2025 21:31:45 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.39; Mon, 7 Apr 2025 21:31:44 +0800 Received: from mszsdhlt06.gcn.mediatek.inc (10.16.6.206) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1258.39 via Frontend Transport; Mon, 7 Apr 2025 21:31:43 +0800 From: Bincai Liu To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chunfeng Yun , Vinod Koul , Kishon Vijay Abraham I , Matthias Brugger , AngeloGioacchino Del Regno , Jitao Shi CC: , , , , , , Bincai Liu Subject: [PATCH 4/4] drm/mediatek: dsi: Enable runtime PM Date: Mon, 7 Apr 2025 21:31:25 +0800 Message-ID: <20250407133138.22449-5-bincai.liu@mediatek.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250407133138.22449-1-bincai.liu@mediatek.com> References: <20250407133138.22449-1-bincai.liu@mediatek.com> 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" This power is new added in MT8196. So runtime PM is enable to turn off dsi power to reduce power consumption. Signed-off-by: Bincai Liu --- drivers/gpu/drm/mediatek/mtk_dsi.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/= mtk_dsi.c index b1467d6bed06..21cfba1f9b89 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include =20 @@ -715,6 +716,7 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) dsi->data_rate =3D DIV_ROUND_UP_ULL(dsi->vm.pixelclock * bit_per_pixel, dsi->lanes); =20 + pm_runtime_get_sync(dsi->host.dev); ret =3D clk_set_rate(dsi->hs_clk, dsi->data_rate); if (ret < 0) { dev_err(dev, "Failed to set data rate: %d\n", ret); @@ -789,6 +791,7 @@ static void mtk_dsi_poweroff(struct mtk_dsi *dsi) clk_disable_unprepare(dsi->digital_clk); =20 phy_power_off(dsi->phy); + pm_runtime_put_sync(dsi->host.dev); =20 dsi->lanes_ready =3D false; } @@ -1272,6 +1275,7 @@ static int mtk_dsi_probe(struct platform_device *pdev) dsi->bridge.funcs =3D &mtk_dsi_bridge_funcs; dsi->bridge.of_node =3D dev->of_node; dsi->bridge.type =3D DRM_MODE_CONNECTOR_DSI; + pm_runtime_enable(dev); =20 return 0; } @@ -1282,6 +1286,7 @@ static void mtk_dsi_remove(struct platform_device *pd= ev) =20 mtk_output_dsi_disable(dsi); mipi_dsi_host_unregister(&dsi->host); + pm_runtime_disable(&pdev->dev); } =20 static const struct mtk_dsi_driver_data mt8173_dsi_driver_data =3D { --=20 2.45.2