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Received: from VI1PR04MB4845.eurprd04.prod.outlook.com (2603:10a6:803:51::30) by AS8PR04MB7975.eurprd04.prod.outlook.com (2603:10a6:20b:2a4::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.36; Mon, 12 Jun 2023 20:34:58 +0000 Received: from VI1PR04MB4845.eurprd04.prod.outlook.com ([fe80::602f:42ad:882a:5ca7]) by VI1PR04MB4845.eurprd04.prod.outlook.com ([fe80::602f:42ad:882a:5ca7%3]) with mapi id 15.20.6455.045; Mon, 12 Jun 2023 20:34:58 +0000 From: Frank Li To: vkoul@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, peng.fan@nxp.com, joy.zou@nxp.com, shenwei.wang@nxp.com, imx@lists.linux.dev Subject: [PATCH v4 07/12] dmaengine: fsl-edma: refactor using devm_clk_get_enabled Date: Mon, 12 Jun 2023 16:34:13 -0400 Message-Id: <20230612203418.2017769-8-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230612203418.2017769-1-Frank.Li@nxp.com> References: <20230612203418.2017769-1-Frank.Li@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SJ2PR07CA0016.namprd07.prod.outlook.com (2603:10b6:a03:505::16) To VI1PR04MB4845.eurprd04.prod.outlook.com (2603:10a6:803:51::30) Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1PR04MB4845:EE_|AS8PR04MB7975:EE_ X-MS-Office365-Filtering-Correlation-Id: 09837582-3fa4-43df-834c-08db6b847d20 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?qTVRyC8t2oDZQ15vy0O4JyUPXjvs+LrorpwI9o8zQm9yHFQ4EMbVOTomMWfz?= =?us-ascii?Q?YjinqwNwWJjQa5nICA4N7KWYPZCog8Rk5XXtABlYZzu1du6+zQOjStG+2r0O?= =?us-ascii?Q?j0pegntc4wQSXO6jl/SQa+2/i45pNAOrdQy6wl7QyB2VOnTWOlLlHJb4A1BN?= =?us-ascii?Q?UOUEBjTWGkrOEeHHhcnHNvscFeGrbzVQo6m4FcXuG9Dd2mGOu+RA+U6Jt8Ll?= =?us-ascii?Q?t5ixq0jxo/He5neex6xwrlt414/pLd4x6oMNSyRi3gh67RMYwyD5ydoIav4E?= =?us-ascii?Q?D3V+pRnA9R+jJnE9GUI1CcGMuzUVXYrH5ijVmavB4Rj8Tle1J7lyXixSYJ3R?= =?us-ascii?Q?mgTf8soeTIA+UPFImUVqUkUwGc77/GhmA955Rh0CXaEZQeX6ny1FEZZrpV1f?= =?us-ascii?Q?H28bGLwyWsCJlsq+sG8dXpQrBNXu72roOxdLc9Kfg2V95t/bmb7EBzkE4qSn?= =?us-ascii?Q?k4Fvz50VZluAqOYcI59xHp1cyckAEhY13pJjl2W8HxcfLJCrvIkiQHfDsz4n?= =?us-ascii?Q?gFY0YNduFdc4arlAPc3Kw08QTIRC4hXEBWT2G9DMFVIlOMESkJdlLeICG1ow?= =?us-ascii?Q?vFXk4Ay67kPeHpZxPlh0JQn3shf90XVhi8pp9x6aKKSSTT7PM+AiidfJ3Pz3?= =?us-ascii?Q?r/69+o5HsejPpIZNyexW1dC0Qhg8WSExymlQukk9H4qpB8Gb2AV4xA47J7Ft?= =?us-ascii?Q?1/hSp6BtqhNqTl+i2/tegisDrEhqCvJ8GG/7KxiYGJ0x9q7zs+eC3dcbZ9UU?= =?us-ascii?Q?jXzhTjRQeuwOURMRmn/IjRcU4yWYDJVaaMH/2GprmYcX4tjZVzwRLqjSR/OE?= =?us-ascii?Q?7P8brdhaaurogbSEgfmOmcfJ3qHEOD815KMA3RXH4rHjT2dKitz4DgabSUkc?= =?us-ascii?Q?V3IPKjL8kf87Bw+3AgLtbNxE9+bJFeM+2sPyX/VwZj9Qg25kEdwly4gEswuZ?= =?us-ascii?Q?2Hn1eGVTh7KDdhuwDA362ogMDSD/Pj6tYuMhCEez9jZuSlBr3vIIUCvtXDD0?= =?us-ascii?Q?1Cwknz8I0lMBgSpzIAJiH1hZQlEERPwUDgIV3Gb4cIyJawJuRdyd3Sf/kVlN?= =?us-ascii?Q?K98U5QnkVUnZoFt4yBM7Aa2t8Ra2QLewICCbrHAtE3PEII/JU36OYEjOdPhz?= =?us-ascii?Q?wLSqQaEi0lPvmIpD7yeDumjz2phCX7PSNBrcW9ixV+ti36ySqFeitnBJ33fi?= =?us-ascii?Q?EESr07WNjBqEEE5JMEo580rrSku0q/xAvbYHCDDZ+g8fb/mnYvDcUMvD/N7M?= =?us-ascii?Q?phd6RH+9zX28PtR5cv1Zmnt0sCLrz+UEsGHwAtIf6uJkdz1VgesfoprHW2HH?= =?us-ascii?Q?hZ50ktsMMTRkZUY5uoBJRL480VfJPA+vGQd4Caqo4Xi0j6CzqTf+6zGRT+SB?= =?us-ascii?Q?/fcUu8h0WYADo4/N0ek6t4eR8giwKf5WBuU+3N5Kr/6gtuM7svr3ygxNZv/G?= =?us-ascii?Q?b7B2b3dctBZorY7RNyDP0RzuZiRSzYgctBOlaxXmntaaGqw6kVnqX6+/PLnk?= =?us-ascii?Q?YpCMzQhLNdfYQEMJe6oFFfvx1anUfZHF1WssPuDAUyMxaD3PzM6ZgM2J/McG?= =?us-ascii?Q?8d2o541ppdvIm6wzZYkv+vnubleIGJaHIKoIja0t?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 09837582-3fa4-43df-834c-08db6b847d20 X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB4845.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2023 20:34:58.3962 (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: jP3wmOH51E12Jgk8FfRMPQ/1OgVqnP2MrCWAehfhZfg6AyjToyzEBe3X31pKRpGeTvUzKDfn0NqQqu4/Qx7Rfg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB7975 Use devm_clk_get_enabled in probe code to reduce error checks, thereby enhancing readability Signed-off-by: Frank Li --- drivers/dma/fsl-edma-main.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index a0e54ca4893c..503e5ad5a8dd 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -266,17 +266,11 @@ static int fsl_edma_probe(struct platform_device *pdev) regs = &fsl_edma->regs; if (drvdata->flags & FSL_EDMA_DRV_HAS_DMACLK) { - fsl_edma->dmaclk = devm_clk_get(&pdev->dev, "dma"); + fsl_edma->dmaclk = devm_clk_get_enabled(&pdev->dev, "dma"); if (IS_ERR(fsl_edma->dmaclk)) { dev_err(&pdev->dev, "Missing DMA block clock.\n"); return PTR_ERR(fsl_edma->dmaclk); } - - ret = clk_prepare_enable(fsl_edma->dmaclk); - if (ret) { - dev_err(&pdev->dev, "DMA clk block failed.\n"); - return ret; - } } for (i = 0; i < fsl_edma->drvdata->dmamuxs; i++) { @@ -291,19 +285,12 @@ static int fsl_edma_probe(struct platform_device *pdev) } sprintf(clkname, "dmamux%d", i); - fsl_edma->muxclk[i] = devm_clk_get(&pdev->dev, clkname); + fsl_edma->muxclk[i] = devm_clk_get_enabled(&pdev->dev, clkname); if (IS_ERR(fsl_edma->muxclk[i])) { dev_err(&pdev->dev, "Missing DMAMUX block clock.\n"); /* on error: disable all previously enabled clks */ - fsl_disable_clocks(fsl_edma, i); return PTR_ERR(fsl_edma->muxclk[i]); } - - ret = clk_prepare_enable(fsl_edma->muxclk[i]); - if (ret) - /* on error: disable all previously enabled clks */ - fsl_disable_clocks(fsl_edma, i); - } fsl_edma->big_endian = of_property_read_bool(np, "big-endian"); @@ -364,7 +351,6 @@ static int fsl_edma_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Can't register Freescale eDMA engine. (%d)\n", ret); - fsl_disable_clocks(fsl_edma, fsl_edma->drvdata->dmamuxs); return ret; } @@ -373,7 +359,6 @@ static int fsl_edma_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't register Freescale eDMA of_dma. (%d)\n", ret); dma_async_device_unregister(&fsl_edma->dma_dev); - fsl_disable_clocks(fsl_edma, fsl_edma->drvdata->dmamuxs); return ret; } -- 2.34.1