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Thu, 22 Aug 2024 14:06:00 +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 15.20.7897.014; Thu, 22 Aug 2024 14:06:00 +0000 From: Rong Qianfeng To: 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 v2 1/3] i2c: emev2: Use devm_clk_get_enabled() helpers Date: Thu, 22 Aug 2024 22:04:10 +0800 Message-Id: <20240822140413.65369-2-rongqianfeng@vivo.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20240822140413.65369-1-rongqianfeng@vivo.com> References: <20240822140413.65369-1-rongqianfeng@vivo.com> X-ClientProxiedBy: TYCP286CA0294.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:3c8::6) To SI2PR06MB5140.apcprd06.prod.outlook.com (2603:1096:4:1af::9) Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SI2PR06MB5140:EE_|SEYPR06MB5301:EE_ X-MS-Office365-Filtering-Correlation-Id: 5fb28585-9554-40dc-b380-08dcc2b38d41 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|52116014|376014|38350700014; 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This simplifies the code and avoids the calls to clk_disable_unprepare(). Signed-off-by: Rong Qianfeng --- drivers/i2c/busses/i2c-emev2.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c index 557409410445..20efe0b0cb85 100644 --- a/drivers/i2c/busses/i2c-emev2.c +++ b/drivers/i2c/busses/i2c-emev2.c @@ -373,14 +373,10 @@ 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"); + priv->sclk = devm_clk_get_enabled(&pdev->dev, "sclk"); if (IS_ERR(priv->sclk)) return PTR_ERR(priv->sclk); - ret = clk_prepare_enable(priv->sclk); - if (ret) - return ret; - priv->adap.timeout = msecs_to_jiffies(100); priv->adap.retries = 5; priv->adap.dev.parent = &pdev->dev; @@ -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); 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Signed-off-by: Rong Qianfeng Reviewed-by: Biju Das --- drivers/i2c/busses/i2c-emev2.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c index 20efe0b0cb85..2a5d9d658246 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); @@ -373,9 +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_enabled(&pdev->dev, "sclk"); - if (IS_ERR(priv->sclk)) - return PTR_ERR(priv->sclk); 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Thu, 22 Aug 2024 14:06:11 +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 15.20.7897.014; Thu, 22 Aug 2024 14:06:10 +0000 From: Rong Qianfeng To: 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 v2 3/3] i2c: jz4780: Use devm_clk_get_enabled() helpers Date: Thu, 22 Aug 2024 22:04:12 +0800 Message-Id: <20240822140413.65369-4-rongqianfeng@vivo.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20240822140413.65369-1-rongqianfeng@vivo.com> References: <20240822140413.65369-1-rongqianfeng@vivo.com> X-ClientProxiedBy: TYCP286CA0294.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:3c8::6) To SI2PR06MB5140.apcprd06.prod.outlook.com (2603:1096:4:1af::9) Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SI2PR06MB5140:EE_|SEYPR06MB5301:EE_ X-MS-Office365-Filtering-Correlation-Id: 4978fd37-006d-4e2d-57ac-08dcc2b39350 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|52116014|376014|38350700014; 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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: 4978fd37-006d-4e2d-57ac-08dcc2b39350 X-MS-Exchange-CrossTenant-AuthSource: SI2PR06MB5140.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2024 14:06:10.8681 (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: oZ9fa7wmpRjRBUmi5BEK+eicE9uGzfaJRXcUvlEZu9HiFyvEJRE4sQdebs3GM447Ueu8pbxb6hUosNDWIGwNrA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SEYPR06MB5301 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 more special handling needed here, remove the goto label "err:". Signed-off-by: Rong Qianfeng Acked-by: Paul Cercueil --- drivers/i2c/busses/i2c-jz4780.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c index 4aafdfab6305..f5362c5dfb50 100644 --- a/drivers/i2c/busses/i2c-jz4780.c +++ b/drivers/i2c/busses/i2c-jz4780.c @@ -792,26 +792,22 @@ static int jz4780_i2c_probe(struct platform_device *pdev) platform_set_drvdata(pdev, i2c); - i2c->clk = devm_clk_get(&pdev->dev, NULL); + i2c->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(i2c->clk)) return PTR_ERR(i2c->clk); - ret = clk_prepare_enable(i2c->clk); - if (ret) - return ret; - ret = of_property_read_u32(pdev->dev.of_node, "clock-frequency", &clk_freq); if (ret) { dev_err(&pdev->dev, "clock-frequency not specified in DT\n"); - goto err; + return ret; } i2c->speed = clk_freq / 1000; if (i2c->speed == 0) { ret = -EINVAL; dev_err(&pdev->dev, "clock-frequency minimum is 1000\n"); - goto err; + return ret; } jz4780_i2c_set_speed(i2c); @@ -827,29 +823,24 @@ static int jz4780_i2c_probe(struct platform_device *pdev) ret = platform_get_irq(pdev, 0); if (ret < 0) - goto err; + return ret; i2c->irq = ret; ret = devm_request_irq(&pdev->dev, i2c->irq, jz4780_i2c_irq, 0, dev_name(&pdev->dev), i2c); if (ret) - goto err; + return ret; ret = i2c_add_adapter(&i2c->adap); if (ret < 0) - goto err; + return ret; return 0; - -err: - clk_disable_unprepare(i2c->clk); - return ret; } static void jz4780_i2c_remove(struct platform_device *pdev) { struct jz4780_i2c *i2c = platform_get_drvdata(pdev); - clk_disable_unprepare(i2c->clk); i2c_del_adapter(&i2c->adap); }