From patchwork Tue Aug 27 03:48:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rong Qianfeng X-Patchwork-Id: 13778803 Received: from HK2PR02CU002.outbound.protection.outlook.com (mail-eastasiaazon11010041.outbound.protection.outlook.com [52.101.128.41]) (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 1EDE71B978; Tue, 27 Aug 2024 03:49:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.128.41 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724730544; cv=fail; b=MlMZusfFf9MYbOJBg5K4QkTmxMeW3FG5khOkKV5zSQuMNXEGvYzBELMYnRvDVl5RwYFM2788gRqScvSHipTsC7T7g8DVHRKkSlCLR1dwPxPCyWGGMQ1HRgq4RdtEa5phv5U3M92gYUxzN4mZu5AANtbkCfFIaqU96Yt86nH+mm0= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724730544; c=relaxed/simple; bh=cF0AJa6LTRobnLH9L+nH+1pTx+DG8UDf0O0syA4Ja/Q=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=dQk+mI4coA316ESV7kS2VG+AZ8NRpxouEmQmM/0VlS6F335SdbO8++xR1DJdRtSRKt7NYfu7OzC+NmQfu+T84UKxA2Ni5tnbjPRx65nD3Q4teUwiNAYwLZAmxKvJNlhblEJfSTnOadsxng43T4Vk6zQnRj9sQEUTYRd+G/k4q84= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=vivo.com; spf=pass smtp.mailfrom=vivo.com; dkim=pass (2048-bit key) header.d=vivo.com header.i=@vivo.com header.b=YDzvKnEe; arc=fail smtp.client-ip=52.101.128.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=vivo.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=vivo.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=vivo.com header.i=@vivo.com header.b="YDzvKnEe" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ynIIEi6P+t8P8d6vLk5Xngu3rEvqCIPrtg7WSGYINQYeqOV0yCzxQy7CoR8zhIqTl7yaQh/BvyJCKTGT5Skw0I4Je/yTt2MAoISu+0o9/4KNTHGM9NqgNlHc4e0F4O1lSWcFU54tewiBS5tOB+98BIaDuhLWmdlIZS9qQVSXtOnVYm9Aw1ZtQY1N7cImxX9q6qLxsKrzYm/KsLBmKlosfqkEmcymN/VeKoqXuum7MflJLMypcLJ2oSmLV9O9QMKqU9O2HbkSlKcQrG60tAOx2W0C+BpeXoaoaYCOf9q29mq10oOLWQT/YNBvSB12KgiO9YjYKEQNjcON1YyN5xIeeA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=BNJCGszWoHFq0L51NYpvZNK97qulYTh8Q7SAAhMmavE=; b=u8DKmBBrd+Ig/nfbP0Ch5TlWDClYCyy7Cu8Wmqo0fu5AOnQYsdDGqc9X42t5FJwWQxGpgYD0MhRH0WIVJ+Zt9xIrbBhU4NLoWN4AMBH+St2Iv+cMPTHW+R8s1ewEyxTCTPGsna08VT9eCYX57p8V0WdQURBSNpJgG1cWtslbbHUYV8GqFMoLanFLCZ+X7z6u4zYQs6UFth/R3d0PoCZsA4bgszD7IcHdRh83SD80/C6bn+VAoBitSAbeyJ4LSCY6HGTxdTkEwJvZ90dEKWoV8D0JmIH6OjpdbLBgjgX4h0kH9wJ3Xuh5dfD+iFQAVfPZfDrd+zw8s2NxE6AHl5A/xg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=vivo.com; dmarc=pass action=none header.from=vivo.com; dkim=pass header.d=vivo.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vivo.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=BNJCGszWoHFq0L51NYpvZNK97qulYTh8Q7SAAhMmavE=; b=YDzvKnEe2/Ed4GMNe5DtkMJpk6r7s5wmcJS+ylJT0Ef4WBfAHPY/WsFgLvAoBUfLOX81m8dTZPNR7cdt1h+TKWXYagz6XRqHVDAOW+CI2meDHRnNBj1lANlqeRPdGj0pQ0mpzaAFNUI1lWfh/KdbWZ+JlvOJMm3toeVHzUV2f4De0qn5osEGTTms9GvGflgY2lxzm0R99fY+F/QeoucymFsYdE8laZak2Fh8KPGGIXSW0X1cfPTnwJdgBfBqTFa1bGgvdd27lNHjTFsibHXjZsWiHMqVzbAFkzmC0CcnknaWu5kRiJWCGvybGsC1+vD8pgGIPFkObf99KFv9P3VZ7A== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vivo.com; Received: from SI2PR06MB5140.apcprd06.prod.outlook.com (2603:1096:4:1af::9) by SEZPR06MB6531.apcprd06.prod.outlook.com (2603:1096:101:184::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7897.24; Tue, 27 Aug 2024 03:48:59 +0000 Received: from SI2PR06MB5140.apcprd06.prod.outlook.com ([fe80::468a:88be:bec:666]) by SI2PR06MB5140.apcprd06.prod.outlook.com ([fe80::468a:88be:bec:666%6]) with mapi id 15.20.7897.021; Tue, 27 Aug 2024 03:48:59 +0000 From: Rong Qianfeng To: andriy.shevchenko@intel.com, biju.das.jz@bp.renesas.com, Wolfram Sang , Andi Shyti , Paul Cercueil , linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org Cc: opensource.kernel@vivo.com, Rong Qianfeng Subject: [PATCH v4 1/3] i2c: emev2: Use devm_clk_get_enabled() helpers Date: Tue, 27 Aug 2024 11:48:39 +0800 Message-Id: <20240827034841.4121-2-rongqianfeng@vivo.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20240827034841.4121-1-rongqianfeng@vivo.com> References: <20240827034841.4121-1-rongqianfeng@vivo.com> X-ClientProxiedBy: TYCPR01CA0131.jpnprd01.prod.outlook.com (2603:1096:400:26d::19) To SI2PR06MB5140.apcprd06.prod.outlook.com (2603:1096:4:1af::9) Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SI2PR06MB5140:EE_|SEZPR06MB6531:EE_ X-MS-Office365-Filtering-Correlation-Id: 36b518fc-5721-40f8-63e1-08dcc64b2f10 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|52116014|376014|38350700014; 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:SI2PR06MB5140.apcprd06.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(52116014)(376014)(38350700014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: vivo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 36b518fc-5721-40f8-63e1-08dcc64b2f10 X-MS-Exchange-CrossTenant-AuthSource: SI2PR06MB5140.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Aug 2024 03:48:59.6178 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 923e42dc-48d5-4cbe-b582-1a797a6412ed X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Ajz1StS/GIbEEdOsZ4ze4Se91+4QvysDADlZ+Anfagcl8zvXmMmuysNVeWktPyKoh7f1lns0c4XdW/eeM+4DbQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SEZPR06MB6531 The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the calls to clk_disable_unprepare(). While at it, no need to save clk pointer, drop sclk from struct em_i2c_device. Signed-off-by: Rong Qianfeng Reviewed-by: Geert Uytterhoeven Reviewed-by: Wolfram Sang --- drivers/i2c/busses/i2c-emev2.c | 25 ++++++++----------------- 1 file changed, 8 insertions(+), 17 deletions(-) diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c index 557409410445..d08be3f3cede 100644 --- a/drivers/i2c/busses/i2c-emev2.c +++ b/drivers/i2c/busses/i2c-emev2.c @@ -67,7 +67,6 @@ struct em_i2c_device { void __iomem *base; struct i2c_adapter adap; struct completion msg_done; - struct clk *sclk; struct i2c_client *slave; int irq; }; @@ -361,6 +360,7 @@ static const struct i2c_algorithm em_i2c_algo = { static int em_i2c_probe(struct platform_device *pdev) { struct em_i2c_device *priv; + struct clk *sclk; int ret; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); @@ -373,13 +373,9 @@ static int em_i2c_probe(struct platform_device *pdev) strscpy(priv->adap.name, "EMEV2 I2C", sizeof(priv->adap.name)); - priv->sclk = devm_clk_get(&pdev->dev, "sclk"); - if (IS_ERR(priv->sclk)) - return PTR_ERR(priv->sclk); - - ret = clk_prepare_enable(priv->sclk); - if (ret) - return ret; + sclk = devm_clk_get_enabled(&pdev->dev, "sclk"); + if (IS_ERR(sclk)) + return PTR_ERR(sclk); priv->adap.timeout = msecs_to_jiffies(100); priv->adap.retries = 5; @@ -397,26 +393,22 @@ static int em_i2c_probe(struct platform_device *pdev) ret = platform_get_irq(pdev, 0); if (ret < 0) - goto err_clk; + return ret; priv->irq = ret; + ret = devm_request_irq(&pdev->dev, priv->irq, em_i2c_irq_handler, 0, "em_i2c", priv); if (ret) - goto err_clk; + return ret; ret = i2c_add_adapter(&priv->adap); - if (ret) - goto err_clk; + return ret; dev_info(&pdev->dev, "Added i2c controller %d, irq %d\n", priv->adap.nr, priv->irq); return 0; - -err_clk: - clk_disable_unprepare(priv->sclk); - return ret; } static void em_i2c_remove(struct platform_device *dev) @@ -424,7 +416,6 @@ static void em_i2c_remove(struct platform_device *dev) struct em_i2c_device *priv = platform_get_drvdata(dev); i2c_del_adapter(&priv->adap); - clk_disable_unprepare(priv->sclk); } static const struct of_device_id em_i2c_ids[] = {