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Thu, 2 Jul 2020 06:53:46 +0000 From: Robin Gong To: vkoul@kernel.org, robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, catalin.marinas@arm.com, will@kernel.org, dan.j.williams@intel.com, angelo@sysam.it Cc: kernel@pengutronix.de, linux-imx@nxp.com, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v1 2/9] dmaengine: fsl-edma-common: add condition check for fsl_edma_chan_mux Date: Thu, 2 Jul 2020 23:08:02 +0800 Message-Id: <1593702489-21648-3-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1593702489-21648-1-git-send-email-yibin.gong@nxp.com> References: <1593702489-21648-1-git-send-email-yibin.gong@nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR01CA0172.apcprd01.prod.exchangelabs.com (2603:1096:4:28::28) To VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.67) by SG2PR01CA0172.apcprd01.prod.exchangelabs.com (2603:1096:4:28::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3153.24 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: xWOxiCM6cwZJonh1nzh+bHhrNUv9CES5uzKKbylO/2hpaclcReb59+DVwUAmvwKlXLOGzmKkzXERLSnpDEuo104g+AoNvcmm6AWT2TcYyqsLTEqa69Ustk+58dTy9R2Ufkj894NY6uJSlDYTO0DdMwrfMpO3j4v5qTRjVtbUQX9D97+V5fw+OtQonkzCZeroJpWmOtFa4SsFUVMiHy33TBXlM2hnYy+CMBbV7NcnnqP5UrXczqtG4WHZY0h2t8LI79SVXdKvQQ9gl8TxpIkwjooE8hSPkqCjEX+LEnPGrZur0F4gbD+eMieFk7Sk1aVLhHZDqeYeV2x8cD+d7X3MyGYhI624AE2VmJXMAWyGwWjwoIRG++FOw+/i93cfNMO1VdMypOs2kFkPc0gg4eA9XML01h2D5NQhDiUjut/UYnWApKtKJjjYBdF1qf3uF5XhQraPdnKvvnX4KMPCztRF8KGg2KRdnlI5fb9melLzqu4= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 48ce6396-f159-4a1f-f977-08d81e54aa93 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6638.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jul 2020 06:53:46.4333 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: np4HXcxLulTG5mgEzvPpOpkxHERyozaJEC6tTQ2FAsCaja5fX3aPLrPad/2eZkRwicSmaFLGDVdKhDGEEhIKvQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB6943 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Since next edma3 don't have dmamux, add condition check in the common fsl_edma_free_chan_resources(). Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index ef5294f0..d19e8a8 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -642,7 +642,10 @@ void fsl_edma_free_chan_resources(struct dma_chan *chan) spin_lock_irqsave(&fsl_chan->vchan.lock, flags); fsl_chan->edma->drvdata->dis_req(fsl_chan); - fsl_edma_chan_mux(fsl_chan, 0, false); + + if (fsl_chan->edma->drvdata->dmamuxs) + fsl_edma_chan_mux(fsl_chan, 0, false); + fsl_chan->edesc = NULL; vchan_get_all_descriptors(&fsl_chan->vchan, &head); fsl_edma_unprep_slave_dma(fsl_chan); -- 2.7.4