From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from EUR05-VI1-obe.outbound.protection.outlook.com (mail-vi1eur05on2067.outbound.protection.outlook.com [40.107.21.67]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 17D4921CE1 for ; Thu, 1 Jun 2023 14:41:48 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Qf37H4tFRoOrZ/yefhdabbcktJmbRUiKJdi0RyNaDV3UpotB47+/Nm7vM7S39HSXGGXTNHAEjf4vLs/KoxePfxmhnXzS0GWdjgHqNjLSbswTwsq/j2s+hi3m8nYqwBFhstdkQwIKnzTuXjiYXhUWyw+IzwT/GCcN4upoQuore3UDBsvWdm0KQlydh0Bc+baxB1Bg4ahBiIIZi7UAiShVOsMIHhEMuwPy3drrtUwl/Vixr0vBCdIEwB5hD3BlirQ08B1tTtlgRyB3B5ZS2qlZYuE/Wa3gZkmhneFf2THUXgUAicelHWYR6nYwlIuEYgQVnUVdRv1y92IqIohT8XzTUg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=WTnuy2oiZIXFuP4CJwEXIDJopDToYbLMOYN1F/PnZAI=; b=dO8Zk8wZJ0wGDWLbpxOn1wTAhmcaTHRk6eGyNWw5MJFFoLtyGo6wydKY6eXuYAh5lXMyFHor/hmptFHGymJYuZ1L0LHKnyYagiEP3f7Zl0bw/dP+83n3NNSAxIMKD7/Aj7GbAL93B0AQ7DZ/s+Q+NcVwlbdLFKred4GzlS3z3cOEIRRzHLYqwLBe+AZgWCk1UAW9GsZ6T3oBDvlV/DAdkd8XbF5HjCWrqttxGpLojdYwFZtIUq12ib1zIniXtG1sZYNvSNosTQhNRK2B6kIK7aCML88LJK3g9VNc8Kevx9Pt7IIP5COIRZvA0FcYJ6rr1IXiw591s49nHkKe8ylUEQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WTnuy2oiZIXFuP4CJwEXIDJopDToYbLMOYN1F/PnZAI=; b=cxifqw25GwBadMMYZQz6DuzGfGUfM1mryakGx3pMlkN793l4jbYbK/o/Bq04gj5gkmAF3oxhPw5C7gZBiQyf/cBWRjmAbNpQc1TX9SHhF0JKMMh6L32zccZAVjJ1gB39BSrpwkAc4oPWXDEbbfAqGmdw1SNWxbS3tDp28xvbGIQ= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) by AM9PR04MB7603.eurprd04.prod.outlook.com (2603:10a6:20b:2d6::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.22; Thu, 1 Jun 2023 14:41:46 +0000 Received: from AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::4a2a:262e:415f:e41c]) by AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::4a2a:262e:415f:e41c%7]) with mapi id 15.20.6433.024; Thu, 1 Jun 2023 14:41:46 +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 v3 07/12] dmaengine: fsl-edma: refactor using devm_clk_get_enabled Date: Thu, 1 Jun 2023 10:41:02 -0400 Message-Id: <20230601144107.1636833-8-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230601144107.1636833-1-Frank.Li@nxp.com> References: <20230601144107.1636833-1-Frank.Li@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SJ0PR03CA0130.namprd03.prod.outlook.com (2603:10b6:a03:33c::15) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) 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: AM6PR04MB4838:EE_|AM9PR04MB7603:EE_ X-MS-Office365-Filtering-Correlation-Id: 1e7c8465-8d4d-4b7c-68b3-08db62ae531e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM6PR04MB4838.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(4636009)(396003)(376002)(346002)(136003)(366004)(39860400002)(451199021)(26005)(36756003)(6506007)(1076003)(6512007)(2616005)(86362001)(186003)(2906002)(478600001)(66946007)(66476007)(66556008)(5660300002)(52116002)(83380400001)(8936002)(6486002)(41300700001)(921005)(38100700002)(8676002)(316002)(38350700002)(6666004);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?7JT98iJNEEkMHKSAGQmEG6HWDJZKrbzlob66/fR1HcZfqTfi0SBhs0r1Qi86?= =?us-ascii?Q?BzObt4bCcoK5la0nRlvCqr9UzOoCUKm61a0xfMUPcnzq7da2+Yv2aXzK3rYD?= =?us-ascii?Q?9CwBsRnmWggwk40eGCL/B7MD0vfbTWUcxceytmAkGQBnowTsP50I0VJxaECH?= =?us-ascii?Q?A1Y9h9ClvKjE5Pv1kZxrX788cV4VozX0VB9PorNO7g+Hgn6qZzqxOBbZ+rTT?= =?us-ascii?Q?AaFANUz1giHrzb+LhVp1IGUN2mO/M0PSbW99FaWXPb2eTjXjiSl7Hlprjd3J?= =?us-ascii?Q?4JeUOVRjwc8mQn/Uv7J2efKNDJj1bSsNQ4859EwOM/v7b0SrQu+oL8tIFWWu?= =?us-ascii?Q?grkA/LVcM2pdObKvlKLMnFRjSE9ktc7EPpZBodmqKX5dOLYKwTnqhpWCQ24G?= =?us-ascii?Q?5To+N/MHTrXKe2LRJXwTS4MyJkWFEMhjHSAbMPJcPqnXe7/JpbsYUqG9iNBV?= =?us-ascii?Q?1AsZLQ2eryRYDprdM7hU3O25Gah5Xql6RP5bGEtN8aHMCenKg6B2dDO8kCcZ?= =?us-ascii?Q?GvP7WTxY+ictU9pUDU0kqJlj7uVy2CAEcCfBOc8JBvbO9BJT1cJciWtW7MAo?= =?us-ascii?Q?fU8Lwrwzi+4Kzeo9riHbsayydOgrQA8rSPV8j0txQmV5uZqGg0wlHH9HBsWM?= =?us-ascii?Q?LctKWqHUy1i4hcwqGSCNfuQp86zMacX3YHBoIxFyNNU0HzprxjNhQFX2Ni3k?= =?us-ascii?Q?2EhixLCwiV4uwn7pCJYStf9AE4HQk/I85hP4ovTqhncfByypeudnqeqGtlDU?= =?us-ascii?Q?vzmBBS4KVoF3zVamM5UM5UPdigYjHGLdDT//ukpVa8JRtrrah8sKeAhOmCN2?= =?us-ascii?Q?2JVQ8gG0DeaJeBoELG6JnyHA3w5n/6HZCHovee3/8Jz5Tv/dXIEeXLOSTMVx?= =?us-ascii?Q?D0mZBgum7n4njHR8vhZEqZsX/ZMqOkVUmyZfhuaXylGFxp/Dr2FAghjN8gko?= =?us-ascii?Q?55hBhwUA8kdkoZaIW4XMeTlnwyToOyoPKx/F7qaBMElMw+v56KMlSZJqZEuh?= =?us-ascii?Q?DmO1IxLqAzwK8AuerSlNyI3LvYJeULUccxhfCjx3W1Fz0gC8ZzRo1M2zc6qd?= =?us-ascii?Q?3+SHV4XOeIEgI0zpm3YNBh3Tu2yy73g9hAaLc58RK8BqPlIqn3Eo3zTWDpho?= =?us-ascii?Q?8RYnZAmsgyhWMAZ7iQtuUFXyoZRAwaOIMvnsv88OVe2gzbCQEKXn+GVtsoxw?= =?us-ascii?Q?jYGtp8Kcj/fBm5Mtz1cXy25mgMXXNIrdKpuh21QlBvp6N7R/qlwDrTIbN6UN?= =?us-ascii?Q?3HboDbxqxLNRoWq/hlUU8Tu7ks21Z2QZWOI0ik4fqwLkzTieaHviKoytpSjW?= =?us-ascii?Q?Cjtbn+4nd2T6E55u1iKh7db2ITtmY9yZaWLtcU3ChqV8tscgRjhfkFvF3zh8?= =?us-ascii?Q?VyW7kU/pRWoDSCu7GicUjI+hrEQt1UnPrZWG7DMNZdsoWk91AZ0DROH9ql3L?= =?us-ascii?Q?WsXA4ENQyoOWL8EWGSbcr73HC07yIc8dnWVny+DCwnU7oFIb9kNXz0GdDtyo?= =?us-ascii?Q?HiikP8se9x4AnBCVzgEZ29ZHmx8P5pWfE1oaBnNbH/aceNWAmWoQYJa3UbQ3?= =?us-ascii?Q?J3WL79vH14Fxc/gGshy01HGlNWVaaKOOYz/3qpIe?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1e7c8465-8d4d-4b7c-68b3-08db62ae531e X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB4838.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Jun 2023 14:41:46.3572 (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: U5tD9ZvD11vKTNLKVjEswxsmVWhbkkpbE+QbpqeEFKfy+4sihQH59AVYoiDA/DLSxuN0x23ALtPrGU5vXUqmeA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB7603 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 73178f250d0a..70e1a0605025 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -265,17 +265,11 @@ 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++) { @@ -290,19 +284,12 @@ 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"); @@ -363,7 +350,6 @@ 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; } @@ -372,7 +358,6 @@ 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