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From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Oleksij Rempel <linux@rempel-privat.de>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>
Cc: linux-clk@vger.kernel.org,
	Jonathan Cameron <Jonathan.Cameron@Huawei.com>,
	Alexandru Ardelean <aardelean@deviqon.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	kernel@pengutronix.de, Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Wolfram Sang <wsa@kernel.org>,
	Oleksij Rempel <o.rempel@pengutronix.de>
Subject: [PATCH v7 5/6] i2c: imx: Simplify using devm_clk_get_enabled()
Date: Mon, 10 May 2021 19:41:41 +0200	[thread overview]
Message-ID: <20210510174142.986250-6-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20210510174142.986250-1-u.kleine-koenig@pengutronix.de>

devm_clk_get_enabled() returns the clk already (prepared and) enabled
and the automatically called cleanup cares for disabling (and
unpreparing). So simplify .probe() and .remove() accordingly.

Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/i2c/busses/i2c-imx.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index dc5ca71906db..13241401ad88 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1405,16 +1405,10 @@ static int i2c_imx_probe(struct platform_device *pdev)
 	ACPI_COMPANION_SET(&i2c_imx->adapter.dev, ACPI_COMPANION(&pdev->dev));
 
 	/* Get I2C clock */
-	i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);
+	i2c_imx->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(i2c_imx->clk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(i2c_imx->clk),
-				     "can't get I2C clock\n");
-
-	ret = clk_prepare_enable(i2c_imx->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "can't enable I2C clock, ret=%d\n", ret);
-		return ret;
-	}
+				     "can't get prepared I2C clock\n");
 
 	/* Init queue */
 	init_waitqueue_head(&i2c_imx->queue);
@@ -1487,7 +1481,6 @@ static int i2c_imx_probe(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
-	clk_disable_unprepare(i2c_imx->clk);
 	return ret;
 }
 
@@ -1517,7 +1510,6 @@ static int i2c_imx_remove(struct platform_device *pdev)
 	irq = platform_get_irq(pdev, 0);
 	if (irq >= 0)
 		free_irq(irq, i2c_imx);
-	clk_disable_unprepare(i2c_imx->clk);
 
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-- 
2.30.2


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  parent reply	other threads:[~2021-05-10 18:01 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10 17:41 [PATCH v7 0/6] clk: provide new devm helpers for prepared and enabled clocks Uwe Kleine-König
2021-05-10 17:41 ` [PATCH v7 1/6] clk: generalize devm_clk_get() a bit Uwe Kleine-König
2021-05-10 17:41 ` [PATCH v7 2/6] clk: Provide new devm_clk_helpers for prepared and enabled clocks Uwe Kleine-König
2021-05-10 17:41 ` [PATCH v7 4/6] rtc: at91sam9: Simplify using devm_clk_get_enabled() Uwe Kleine-König
2021-05-10 17:41 ` Uwe Kleine-König [this message]
2021-05-11  7:58 ` [PATCH v7 0/6] clk: provide new devm helpers for prepared and enabled clocks Alexandru Ardelean
2021-05-24 11:09 ` Uwe Kleine-König
     [not found] ` <20210609202123.u5rmw7al4x3rrvun@pengutronix.de>
2021-06-25 17:14   ` [PULL] Add variants of devm_clk_get for prepared and enabled clocks " Uwe Kleine-König
2021-07-05  8:01     ` Uwe Kleine-König
2021-07-22  6:06       ` Uwe Kleine-König
2021-07-22  7:40         ` Wolfram Sang
2021-07-22  8:18           ` Uwe Kleine-König
2021-07-22 12:07             ` Wolfram Sang
     [not found]               ` <CAHp75VfC=s12Unw3+Cn0ag71mM5i90=Jbwj4nYwB5cPKiUTRSA@mail.gmail.com>
2021-07-23  9:13                 ` Uwe Kleine-König
2021-07-26  9:18                   ` Claudiu.Beznea
2021-07-26  9:52                     ` Andy Shevchenko
2021-07-26 12:32                       ` Wolfram Sang
2021-07-26 13:28                         ` Andy Shevchenko
2021-07-26 17:40                           ` Wolfram Sang
2021-07-28 20:25                     ` About clk maintainership [Was: Re: [PULL] Add variants of devm_clk_get for prepared and enabled clocks enabled clocks] Uwe Kleine-König
2021-07-28 20:40                       ` Russell King (Oracle)
2021-07-31  7:41                         ` Stephen Boyd
2021-07-31  8:07                           ` Andy Shevchenko
2021-07-31 12:00                           ` Uwe Kleine-König
2021-08-02  9:36                             ` Jonathan Cameron
2021-08-02  9:48                             ` Russell King (Oracle)
2021-08-02 15:27                               ` Uwe Kleine-König
2021-08-02 16:38                                 ` Russell King (Oracle)
2021-08-02 17:13                                   ` Andy Shevchenko
2021-08-02 20:28                                     ` Russell King (Oracle)
2021-08-03  8:11                                   ` Stephen Boyd
2021-08-03 10:40                                     ` Uwe Kleine-König
2021-08-06  0:26                                       ` Stephen Boyd
2021-09-14 13:22                                         ` Uwe Kleine-König
2021-09-14 13:52                                           ` Mark Brown
2021-08-03  7:44                               ` Stephen Boyd

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