From patchwork Mon Apr 7 13:31:25 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bincai Liu X-Patchwork-Id: 14040590 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 09DFFC36010 for ; Mon, 7 Apr 2025 13:54:52 +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: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0TmOhe1bI1nRNV0NE53OyjwkYey+CrXkJvZIridblTc=; b=F9qjcdm76Dj1xDJUB04uHNU99c TR904gNQvoKD5NbRjz7vQdqndr3sCbEjm6uZo1IIaqfORUzP/kZhxsg8TvyACKsLwcK2CMUv8kCPE k6AypiM2NzuMMPq2f167QOefF2jfdJtnbM6oGHYS8Imu7m+bmvCvkXLStsyQUIwneD80uj7qqtp6N 1zpY05jGnFHjNJNn2TL0Qc8a4qPpsDHlDwEl8V544CnY2FwrKdeNZYg3FwQ5HfPjvuLeRX1Fl8MY7 stSqQye+l2b87EF4qODIqGPn+Rhbpqh7Q7T9x5++iG5S+tb3pVfFBLY3PjWLixSl9S41shOS8uyhC jcfTLB0g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1u1mvx-00000000bzl-292S; Mon, 07 Apr 2025 13:54:41 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1u1mZs-00000000WyI-1YhK; Mon, 07 Apr 2025 13:31:54 +0000 X-UUID: a7588b9c13b411f083f2a1c9db70dae0-20250407 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:de0f6175-4fba-4e27-9119-b84045d86f1f,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:70b546c7-16da-468a-87f7-8ca8d6b3b9f7,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: a7588b9c13b411f083f2a1c9db70dae0-20250407 Received: from mtkmbs14n1.mediatek.inc [(172.21.101.75)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1241197495; Mon, 07 Apr 2025 06:31:47 -0700 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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250407_063152_447341_27864B80 X-CRM114-Status: GOOD ( 11.60 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 @@ -715,6 +716,7 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) dsi->data_rate = DIV_ROUND_UP_ULL(dsi->vm.pixelclock * bit_per_pixel, dsi->lanes); + pm_runtime_get_sync(dsi->host.dev); ret = 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); phy_power_off(dsi->phy); + pm_runtime_put_sync(dsi->host.dev); dsi->lanes_ready = false; } @@ -1272,6 +1275,7 @@ static int mtk_dsi_probe(struct platform_device *pdev) dsi->bridge.funcs = &mtk_dsi_bridge_funcs; dsi->bridge.of_node = dev->of_node; dsi->bridge.type = DRM_MODE_CONNECTOR_DSI; + pm_runtime_enable(dev); return 0; } @@ -1282,6 +1286,7 @@ static void mtk_dsi_remove(struct platform_device *pdev) mtk_output_dsi_disable(dsi); mipi_dsi_host_unregister(&dsi->host); + pm_runtime_disable(&pdev->dev); } static const struct mtk_dsi_driver_data mt8173_dsi_driver_data = {