From patchwork Tue Sep 12 07:57:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?TW91ZHkgSG8gKOS9leWul+WOnyk=?= X-Patchwork-Id: 94569 X-Patchwork-Delegate: hverkuil@xs4all.nl Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1qfyIt-002db3-S4; Tue, 12 Sep 2023 07:59:24 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232289AbjILH7X (ORCPT + 1 other); Tue, 12 Sep 2023 03:59:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232105AbjILH6v (ORCPT ); Tue, 12 Sep 2023 03:58:51 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA64F10D3; Tue, 12 Sep 2023 00:58:15 -0700 (PDT) X-UUID: 1c5f5920514211ee8051498923ad61e6-20230912 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=xSDQna8REA3X3uSlIAry+oO7NAIfkEBRlPmEHh+5k3Y=; b=PgtxnOH0FZeP/7HL0UR2KTvgnoksylTTO+Dv2C6XQcC27yf/fmb9r/wEw4AGRWzX8o8mhiA9vK+ZyeYzwlK9Wc7EKrSVU7XDUcnNjiKarn0Gr8PPyCgnG4mvPpg0UfKa2uXBtAVyfiBA4/cNNSXGXFirIsm7dYB1cuHtqCYdmOM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.31,REQID:d5372bba-0f55-477d-966c-977315f91cb7,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:0ad78a4,CLOUDID:28fbbcbe-14cc-44ca-b657-2d2783296e72,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File: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 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 1c5f5920514211ee8051498923ad61e6-20230912 Received: from mtkmbs11n2.mediatek.inc [(172.21.101.187)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1997302553; Tue, 12 Sep 2023 15:58:08 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 12 Sep 2023 15:58:07 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 12 Sep 2023 15:58:07 +0800 From: Moudy Ho To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mauro Carvalho Chehab , Matthias Brugger , Hans Verkuil CC: AngeloGioacchino Del Regno , , , , , , , "Moudy Ho" Subject: [PATCH v5 08/14] media: platform: mtk-mdp3: avoid multiple driver registrations Date: Tue, 12 Sep 2023 15:57:59 +0800 Message-ID: <20230912075805.11432-9-moudy.ho@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230912075805.11432-1-moudy.ho@mediatek.com> References: <20230912075805.11432-1-moudy.ho@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--7.861000-8.000000 X-TMASE-MatchedRID: t43B5J96WnkBCIpkUn74FLg7LINv5AfgLL6mJOIs/vYs/uUAk6xP7PlY oV6p/cSxARdN2JeGGT9JYgJHd90gXxElELPcdUQnGVyS87Wb4lzEoDEGChh7CU1KG1YrOQW/vYS gGqfGrUjftLFtxOSbQ4Ay6p60ZV62fJ5/bZ6npdjKayT/BQTiGsxWxQI7PtA5XSCZzMZeoii5jf clWSk2ytPCZ+p6duiIqPG8weO90G0= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--7.861000-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 4ED9F94F69DF90427B6D9211F70D41B3F83357F682DB26E0356534A3810D87E42000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no The amount of MDP3 driver probes is determined by the registered clocks of MMSYS. Since MT8195 MDP3 utilizes VPPSYS0 and VPPSYS1, it's necessary to prevent multiple driver registrations. Signed-off-by: Moudy Ho --- drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c | 1 + drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c | 8 ++++++++ drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h | 1 + 3 files changed, 10 insertions(+) diff --git a/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c b/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c index b7efdafb1620..8eac09f9d3dd 100644 --- a/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c +++ b/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c @@ -410,6 +410,7 @@ static const struct mdp_pipe_info mt8183_pipe_info[] = { const struct mtk_mdp_driver_data mt8183_mdp_driver_data = { .mdp_plat_id = MT8183, + .mdp_con_res = 0x14001000, .mdp_probe_infra = mt8183_mdp_probe_infra, .mdp_cfg = &mt8183_plat_cfg, .mdp_mutex_table_idx = mt8183_mutex_idx, diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c index 239f496b7a30..06b7d2b0b814 100644 --- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c @@ -161,6 +161,7 @@ static int mdp_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct mdp_dev *mdp; struct platform_device *mm_pdev, *mm2_pdev; + struct resource *res; int ret, i, mutex_id; mdp = kzalloc(sizeof(*mdp), GFP_KERNEL); @@ -172,6 +173,12 @@ static int mdp_probe(struct platform_device *pdev) mdp->pdev = pdev; mdp->mdp_data = of_device_get_match_data(&pdev->dev); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res->start != mdp->mdp_data->mdp_con_res) { + platform_set_drvdata(pdev, mdp); + goto success_return; + } + mm_pdev = __get_pdev_by_id(pdev, NULL, MDP_INFRA_MMSYS); if (IS_ERR_OR_NULL(mm_pdev)) { ret = -ENODEV; @@ -279,6 +286,7 @@ static int mdp_probe(struct platform_device *pdev) goto err_unregister_device; } +success_return: dev_dbg(dev, "mdp-%d registered successfully\n", pdev->id); return 0; diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h index e4ffa25b9271..a063a655248c 100644 --- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h @@ -61,6 +61,7 @@ enum mdp_pipe_id { struct mtk_mdp_driver_data { const int mdp_plat_id; + const resource_size_t mdp_con_res; const struct of_device_id *mdp_probe_infra; const struct mdp_platform_config *mdp_cfg; const u32 *mdp_mutex_table_idx;