From patchwork Tue Mar 28 09:14:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13190702 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 6729AC76195 for ; Tue, 28 Mar 2023 09:16:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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:In-Reply-To:References: List-Owner; bh=MPwC/QDVmm4GIfqpunWzypdf1nlsdAsfhQykAtsB0J8=; b=nHLKzbNpQIVT37 kEnhO3OL0Zd1iObGpwd4Fl2j+gQ5OmFlv/R1291miaiMTamrG1UuZmaOfELS/vsWiddHdVThieoFx e/odePhhZ/LqhfBINJ9pACu4v1eHWc71i0pTgKp4SCU6oZ4Wly62URbWUIUb1mJ469ZR+mtwWLm/2 4AG03KmfVpQ7hn6FoJR56pQwZWyV2LmeVwUQN1fuMBxIkU1dE/jHRoiWj0FUzNF279J94LmlvnsSz zadJFfQYQ8xq/iOCCJPm7iaaEFgQMqjM+ct7r76JIV2j+xhHiYd66ho5gMk/KPI5mtzMaLXPV97cX JhYuBzCP+7jyYQ+za1fA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ph5Q4-00DhXt-1Y; Tue, 28 Mar 2023 09:15:08 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ph5Q0-00DhWn-30; Tue, 28 Mar 2023 09:15:06 +0000 X-UUID: 016619d8cd4911ed8687db9d93187ff1-20230328 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:Message-ID:Date:Subject:CC:To:From; bh=Jw+aLfnj7i1Y8FcmfwnIOGelpoF+TqByMoYNXug1t7Q=; b=OcEaPKvxMQ14xNxx6wJXYeaHzfoPvaARf698UcQ2Rg5E4bnbIsjzHdqBGNv7oei9P+V1XghR5OfqtmeVKNw0tmke3BG3GyBjlnVtbRDeLWrt79jz6A4GB8E0aIUpD+F2cB+aUbHXywPbyTMjJjQgmzZS75feSbQNfbHoXohRinw=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:b74ccc67-3c5e-4855-81f3-5aaf468cdd27,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:120426c,CLOUDID:35b3b929-564d-42d9-9875-7c868ee415ec,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: 016619d8cd4911ed8687db9d93187ff1-20230328 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 746254264; Tue, 28 Mar 2023 02:14:55 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Tue, 28 Mar 2023 17:14:53 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Tue, 28 Mar 2023 17:14:52 +0800 From: Yunfei Dong To: Yunfei Dong , Chen-Yu Tsai , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , =?utf-8?q?N=C3=ADcolas?= =?utf-8?q?_F_=2E_R_=2E_A_=2E_Prado?= CC: Matthias Brugger , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , , , , , , Subject: [PATCH 1/2] media: mediatek: vcodec: fix decoder disable pm crash Date: Tue, 28 Mar 2023 17:14:49 +0800 Message-ID: <20230328091451.21979-1-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230328_021505_117637_71734CB7 X-CRM114-Status: GOOD ( 12.15 ) 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 Can't call pm_runtime_disable when the architecture support sub device for 'dev->pm.dev' is NUll, or will get below crash log. [ 10.771551] pc : _raw_spin_lock_irq+0x4c/0xa0 [ 10.771556] lr : __pm_runtime_disable+0x30/0x130 [ 10.771558] sp : ffffffc01e4cb800 [ 10.771559] x29: ffffffc01e4cb800 x28: ffffffdf082108a8 [ 10.771563] x27: ffffffc01e4cbd70 x26: ffffff8605df55f0 [ 10.771567] x25: 0000000000000002 x24: 0000000000000002 [ 10.771570] x23: ffffff85c0dc9c00 x22: 0000000000000001 [ 10.771573] x21: 0000000000000001 x20: 0000000000000000 [ 10.771577] x19: 00000000000000f4 x18: ffffffdf2e9fbe18 [ 10.771580] x17: 0000000000000000 x16: ffffffdf2df13c74 [ 10.771583] x15: 00000000000002ea x14: 0000000000000058 [ 10.771587] x13: ffffffdf2de1b62c x12: ffffffdf2e9e30e4 [ 10.771590] x11: 0000000000000000 x10: 0000000000000001 [ 10.771593] x9 : 0000000000000000 x8 : 00000000000000f4 [ 10.771596] x7 : 6bff6264632c6264 x6 : 0000000000008000 [ 10.771600] x5 : 0080000000000000 x4 : 0000000000000001 [ 10.771603] x3 : 0000000000000008 x2 : 0000000000000001 [ 10.771608] x1 : 0000000000000000 x0 : 00000000000000f4 [ 10.771613] Call trace: [ 10.771617] _raw_spin_lock_irq+0x4c/0xa0 [ 10.771620] __pm_runtime_disable+0x30/0x130 [ 10.771657] mtk_vcodec_probe+0x69c/0x728 [mtk_vcodec_dec 800cc929d6631f79f9b273254c8db94d0d3500dc] [ 10.771662] platform_drv_probe+0x9c/0xbc [ 10.771665] really_probe+0x13c/0x3a0 [ 10.771668] driver_probe_device+0x84/0xc0 [ 10.771671] device_driver_attach+0x54/0x78 Fixes: ba31a5b39400 ("media: mtk-vcodec: Remove mtk_vcodec_release_dec_pm") Signed-off-by: Yunfei Dong --- - Won't crash when the driver running in error condition. --- drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c index bba7b932f4fa..2b6eaa222846 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c @@ -454,7 +454,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev) if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch)) destroy_workqueue(dev->core_workqueue); err_res: - pm_runtime_disable(dev->pm.dev); + if (!dev->vdec_pdata->is_subdev_supported) + pm_runtime_disable(dev->pm.dev); err_dec_pm: mtk_vcodec_fw_release(dev->fw_handler); return ret;