From patchwork Wed Aug 2 14:47:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SmFzb24tSkggTGluICjmnpfnnb/npaUp?= X-Patchwork-Id: 13338276 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 A3481C04E69 for ; Wed, 2 Aug 2023 14:48:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DF20810E202; Wed, 2 Aug 2023 14:48:16 +0000 (UTC) Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by gabe.freedesktop.org (Postfix) with ESMTPS id D65DF10E20F for ; Wed, 2 Aug 2023 14:48:13 +0000 (UTC) X-UUID: 968c4f1a314311eeb20a276fd37b9834-20230802 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=aUhX4vm7/YwxpZ4R5IgDTC1j/2pYbB/emjeIzE3ZJpI=; b=nNRmNcLJnezH5Xo4YW8VLPowU8hYB+6Bodr8/H/TcUhQMd6V1tYNR+GUcmrJo32Tz0VKNmC9O7xpR/JLGQHCh82ZxWs9zd4ksWmPvTtABEZUFBaM2nSzDME3liWbXC4zza+rSTaeZALAU92lkIWdJ30cXGtha0/9J5MDUKtTzw4=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.30, REQID:b9325386-0f6c-42a5-9503-85a4e0edbf76, IP:0, U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:95 X-CID-INFO: VERSION:1.1.30, REQID:b9325386-0f6c-42a5-9503-85a4e0edbf76, IP:0, URL :0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTION :quarantine,TS:95 X-CID-META: VersionHash:1fcc6f8, CLOUDID:551f9dd2-cd77-4e67-bbfd-aa4eaace762f, B ulkID:2308022248067SK72J6U,BulkQuantity:1,Recheck:0,SF:48|38|29|28|17|19,T C:nil,Content:0,EDM:-3,IP:nil,URL:11|1,File:nil,Bulk:40,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 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SDM, TF_CID_SPAM_ASC, TF_CID_SPAM_FAS, TF_CID_SPAM_FSD, TF_CID_SPAM_ULN,TF_CID_SPAM_SNR X-UUID: 968c4f1a314311eeb20a276fd37b9834-20230802 Received: from mtkmbs14n1.mediatek.inc [(172.21.101.75)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1426893558; Wed, 02 Aug 2023 22:48:05 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 2 Aug 2023 22:48:04 +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; Wed, 2 Aug 2023 22:48:04 +0800 From: Jason-JH.Lin To: Chun-Kuang Hu , AngeloGioacchino Del Regno , Eugen Hristev Subject: [PATCH v8 3/8] drm/mediatek: Fix using wrong drm private data to bind mediatek-drm Date: Wed, 2 Aug 2023 22:47:57 +0800 Message-ID: <20230802144802.751-4-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230802144802.751-1-jason-jh.lin@mediatek.com> References: <20230802144802.751-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Jason-JH . Lin" , Singo Chang , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Project_Global_Chrome_Upstream_Group@mediatek.com, Jason-ch Chen , Nancy Lin , Johnson Wang , Shawn Sung , Matthias Brugger , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In mtk_drm_kms_init(), each element in all_drm_priv should has one display path private data only, such as: all_drm_priv[CRTC_MAIN] should has main_path data only all_drm_priv[CRTC_EXT] should has ext_path data only all_drm_priv[CRTC_THIRD] should has third_path data only So we need to add the length checking for each display path before assigning their drm private data into all_drm_priv array. Fixes: 1ef7ed48356c ("drm/mediatek: Modify mediatek-drm for mt8195 multi mmsys support") Signed-off-by: Jason-JH.Lin Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 89a38561ba27..c12886f31e54 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -351,6 +351,7 @@ static bool mtk_drm_get_all_drm_priv(struct device *dev) { struct mtk_drm_private *drm_priv = dev_get_drvdata(dev); struct mtk_drm_private *all_drm_priv[MAX_CRTC]; + struct mtk_drm_private *temp_drm_priv; struct device_node *phandle = dev->parent->of_node; const struct of_device_id *of_id; struct device_node *node; @@ -373,9 +374,18 @@ static bool mtk_drm_get_all_drm_priv(struct device *dev) if (!drm_dev || !dev_get_drvdata(drm_dev)) continue; - all_drm_priv[cnt] = dev_get_drvdata(drm_dev); - if (all_drm_priv[cnt] && all_drm_priv[cnt]->mtk_drm_bound) - cnt++; + temp_drm_priv = dev_get_drvdata(drm_dev); + if (temp_drm_priv) { + if (temp_drm_priv->mtk_drm_bound) + cnt++; + + if (temp_drm_priv->data->main_len) + all_drm_priv[CRTC_MAIN] = temp_drm_priv; + else if (temp_drm_priv->data->ext_len) + all_drm_priv[CRTC_EXT] = temp_drm_priv; + else if (temp_drm_priv->data->third_len) + all_drm_priv[CRTC_THIRD] = temp_drm_priv; + } } if (drm_priv->data->mmsys_dev_num == cnt) {