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From: Jinjie Ruan <ruanjinjie@huawei.com>
To: <jic23@kernel.org>, <lars@metafoo.de>,
	<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<claudiu.beznea@tuxon.dev>, <matthias.bgg@gmail.com>,
	<angelogioacchino.delregno@collabora.com>,
	<Michael.Hennerich@analog.com>, <heiko@sntech.de>,
	<yangyingliang@huawei.com>, <robh@kernel.org>,
	<linux-iio@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>
Cc: <ruanjinjie@huawei.com>
Subject: [PATCH -next 4/4] iio: frequency: adf4350: Use devm_clk_get_enabled() helper function
Date: Fri, 25 Aug 2023 18:57:46 +0800	[thread overview]
Message-ID: <20230825105746.2999548-5-ruanjinjie@huawei.com> (raw)
In-Reply-To: <20230825105746.2999548-1-ruanjinjie@huawei.com>

The devm_clk_get_enabled() helper:
    - calls devm_clk_get()
    - calls clk_prepare_enable() and registers what is needed in order to
      call clk_disable_unprepare() when needed, as a managed resource.

This simplifies the code.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
 drivers/iio/frequency/adf4350.c | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 85e289700c3c..22330d1768ff 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -491,20 +491,14 @@ static int adf4350_probe(struct spi_device *spi)
 	}
 
 	if (!pdata->clkin) {
-		clk = devm_clk_get(&spi->dev, "clkin");
+		clk = devm_clk_get_enabled(&spi->dev, "clkin");
 		if (IS_ERR(clk))
-			return -EPROBE_DEFER;
-
-		ret = clk_prepare_enable(clk);
-		if (ret < 0)
-			return ret;
+			return PTR_ERR(clk);
 	}
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL) {
-		ret =  -ENOMEM;
-		goto error_disable_clk;
-	}
+	if (indio_dev == NULL)
+		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
 
@@ -512,7 +506,7 @@ static int adf4350_probe(struct spi_device *spi)
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
-			goto error_disable_clk;
+			return ret;
 	}
 
 	spi_set_drvdata(spi, indio_dev);
@@ -564,8 +558,6 @@ static int adf4350_probe(struct spi_device *spi)
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-error_disable_clk:
-	clk_disable_unprepare(clk);
 
 	return ret;
 }
@@ -581,8 +573,6 @@ static void adf4350_remove(struct spi_device *spi)
 
 	iio_device_unregister(indio_dev);
 
-	clk_disable_unprepare(st->clk);
-
 	if (!IS_ERR(reg))
 		regulator_disable(reg);
 }
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Jinjie Ruan <ruanjinjie@huawei.com>
To: <jic23@kernel.org>, <lars@metafoo.de>,
	<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<claudiu.beznea@tuxon.dev>, <matthias.bgg@gmail.com>,
	<angelogioacchino.delregno@collabora.com>,
	<Michael.Hennerich@analog.com>, <heiko@sntech.de>,
	<yangyingliang@huawei.com>, <robh@kernel.org>,
	<linux-iio@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>
Cc: <ruanjinjie@huawei.com>
Subject: [PATCH -next 4/4] iio: frequency: adf4350: Use devm_clk_get_enabled() helper function
Date: Fri, 25 Aug 2023 18:57:46 +0800	[thread overview]
Message-ID: <20230825105746.2999548-5-ruanjinjie@huawei.com> (raw)
In-Reply-To: <20230825105746.2999548-1-ruanjinjie@huawei.com>

The devm_clk_get_enabled() helper:
    - calls devm_clk_get()
    - calls clk_prepare_enable() and registers what is needed in order to
      call clk_disable_unprepare() when needed, as a managed resource.

This simplifies the code.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
 drivers/iio/frequency/adf4350.c | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 85e289700c3c..22330d1768ff 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -491,20 +491,14 @@ static int adf4350_probe(struct spi_device *spi)
 	}
 
 	if (!pdata->clkin) {
-		clk = devm_clk_get(&spi->dev, "clkin");
+		clk = devm_clk_get_enabled(&spi->dev, "clkin");
 		if (IS_ERR(clk))
-			return -EPROBE_DEFER;
-
-		ret = clk_prepare_enable(clk);
-		if (ret < 0)
-			return ret;
+			return PTR_ERR(clk);
 	}
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL) {
-		ret =  -ENOMEM;
-		goto error_disable_clk;
-	}
+	if (indio_dev == NULL)
+		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
 
@@ -512,7 +506,7 @@ static int adf4350_probe(struct spi_device *spi)
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
-			goto error_disable_clk;
+			return ret;
 	}
 
 	spi_set_drvdata(spi, indio_dev);
@@ -564,8 +558,6 @@ static int adf4350_probe(struct spi_device *spi)
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-error_disable_clk:
-	clk_disable_unprepare(clk);
 
 	return ret;
 }
@@ -581,8 +573,6 @@ static void adf4350_remove(struct spi_device *spi)
 
 	iio_device_unregister(indio_dev);
 
-	clk_disable_unprepare(st->clk);
-
 	if (!IS_ERR(reg))
 		regulator_disable(reg);
 }
-- 
2.34.1


_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2023-08-25 10:58 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-25 10:57 [PATCH -next 0/4] iio: Use devm_clk_get_enabled() helper function Jinjie Ruan
2023-08-25 10:57 ` Jinjie Ruan
2023-08-25 10:57 ` [PATCH -next 1/4] iio: adc: at91_adc: " Jinjie Ruan
2023-08-25 10:57   ` Jinjie Ruan
2023-08-25 12:50   ` Jonathan Cameron
2023-08-25 12:50     ` Jonathan Cameron
2023-08-26  2:02     ` Ruan Jinjie
2023-08-26  2:02       ` Ruan Jinjie
2023-08-25 10:57 ` [PATCH -next 2/4] iio: adc: mt6577_auxadc: " Jinjie Ruan
2023-08-25 10:57   ` Jinjie Ruan
2023-08-25 12:54   ` Jonathan Cameron
2023-08-25 12:54     ` Jonathan Cameron
2023-08-26  2:37     ` Ruan Jinjie
2023-08-26  2:37       ` Ruan Jinjie
2023-08-25 10:57 ` [PATCH -next 3/4] iio: adc: spear_adc: " Jinjie Ruan
2023-08-25 10:57   ` Jinjie Ruan
2023-08-25 12:55   ` Jonathan Cameron
2023-08-25 12:55     ` Jonathan Cameron
2023-08-25 10:57 ` Jinjie Ruan [this message]
2023-08-25 10:57   ` [PATCH -next 4/4] iio: frequency: adf4350: " Jinjie Ruan
2023-08-25 12:57   ` Jonathan Cameron
2023-08-25 12:57     ` Jonathan Cameron

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