From patchwork Mon Oct 30 10:06:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Moudy Ho X-Patchwork-Id: 13440410 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B9BEC4167B for ; Mon, 30 Oct 2023 10:18:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232739AbjJ3KSA (ORCPT ); Mon, 30 Oct 2023 06:18:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58496 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232696AbjJ3KRp (ORCPT ); Mon, 30 Oct 2023 06:17:45 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B7E518A4A; Mon, 30 Oct 2023 03:06:35 -0700 (PDT) X-UUID: feef1c78770b11eea33bb35ae8d461a2-20231030 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=J2kxc3oKbOck1uppNrqtWT5A1Sb51+PDVb6r0qeviTA=; b=IbF/YUjrwVM29kFvy1REmLWaSenMPCa4RFL74o/0OgW0tei8O9fyrK+BPi2Y/5eSdP+kuGRAsM1PBhkVFhooXiORE6PKJEVrMdxYLdaZkWSCesbemNvHSvJ87pZTPMGPsLC09KaVJWQL5+bkVDbMmOYcJryJdDzUarTFPZ3gPn0=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.33,REQID:bcd84d7b-9780-498d-9a9b-b77427f34d7e,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:364b77b,CLOUDID:c5d3cb94-10ce-4e4b-85c2-c9b5229ff92b,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: feef1c78770b11eea33bb35ae8d461a2-20231030 Received: from mtkmbs14n1.mediatek.inc [(172.21.101.75)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 405501218; Mon, 30 Oct 2023 18:06:30 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) 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; Mon, 30 Oct 2023 18:06:28 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 30 Oct 2023 18:06:28 +0800 From: Moudy Ho To: Mauro Carvalho Chehab , Matthias Brugger , AngeloGioacchino Del Regno , Hans Verkuil CC: , , , , Moudy Ho Subject: [PATCH v8 06/12] media: platform: mtk-mdp3: avoid multiple driver registrations Date: Mon, 30 Oct 2023 18:06:20 +0800 Message-ID: <20231030100626.12564-7-moudy.ho@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231030100626.12564-1-moudy.ho@mediatek.com> References: <20231030100626.12564-1-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--7.179200-8.000000 X-TMASE-MatchedRID: PQIaRDv4+w4BCIpkUn74FLg7LINv5AfgLL6mJOIs/vYs/uUAk6xP7PlY oV6p/cSxARdN2JeGGT9JYgJHd90gXxElELPcdUQnGVyS87Wb4lzEoDEGChh7CVlDV0KgHSWHvlJ 3+emUkhzi8zVgXoAltsIJ+4gwXrEtIAcCikR3vq9hm4Y1VTjopK50kiJ9WXKWCs0VwnvRHN49I/ WHSbgMDIKBaDypH2iz X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--7.179200-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: FFA80988CCDBFC2BD2ED71DBA6756B1CE320C53312EB7E13EC11BA3536DD544F2000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 Reviewed-by: AngeloGioacchino Del Regno --- 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 fe92c0474bfa..6f77c33074ec 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 8959f83eb5b5..b214510ac42d 100644 --- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c @@ -211,6 +211,7 @@ static int mdp_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct mdp_dev *mdp; struct platform_device *mm_pdev; + struct resource *res; int ret, i, mutex_id; mdp = kzalloc(sizeof(*mdp), GFP_KERNEL); @@ -222,6 +223,12 @@ 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; + } + ret = mdp_mm_subsys_deploy(mdp, MDP_INFRA_MMSYS); if (ret) goto err_destroy_device; @@ -307,6 +314,7 @@ 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 ece6509666fd..22d1b17ef2fc 100644 --- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h @@ -71,6 +71,7 @@ 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;