linux-kernel - [PATCH 6/6] iio: imx7d_adc: Drop imx7d_adc

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Message-Id: <20190403070325.1077-7-andrew.smirnov@gmail.com>
Date:   Wed,  3 Apr 2019 00:03:25 -0700
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     linux-iio@...r.kernel.org
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Chris Healy <cphealy@...il.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 6/6] iio: imx7d_adc: Drop imx7d_adc_remove()

Since imx7d_adc_remove() does exactly the same thing as
imx7d_adc_suspend() we can use the latter together with
devm_add_action_or_reset() to get rid of the former.

Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
Cc: Jonathan Cameron <jic23@...nel.org>
Cc: Hartmut Knaack <knaack.h@....de>
Cc: Lars-Peter Clausen <lars@...afoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@...erw.net>
Cc: Chris Healy <cphealy@...il.com>
Cc: linux-iio@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/iio/adc/imx7d_adc.c | 55 ++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 32 deletions(-)

diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c
index c2fa0ab923ee..ed95909eada2 100644
--- a/drivers/iio/adc/imx7d_adc.c
+++ b/drivers/iio/adc/imx7d_adc.c
@@ -461,6 +461,24 @@ static int imx7d_adc_resume(struct device *dev)
 	return 0;
 }
 
+static int imx7d_adc_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct imx7d_adc *info = iio_priv(indio_dev);
+
+	imx7d_adc_power_down(info);
+
+	clk_disable_unprepare(info->clk);
+	regulator_disable(info->vref);
+
+	return 0;
+}
+
+static void __imx7d_adc_suspend(void *data)
+{
+	imx7d_adc_suspend(data);
+}
+
 static int imx7d_adc_probe(struct platform_device *pdev)
 {
 	struct imx7d_adc *info;
@@ -506,8 +524,6 @@ static int imx7d_adc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	platform_set_drvdata(pdev, indio_dev);
-
 	init_completion(&info->completion);
 
 	indio_dev->name = dev_name(dev);
@@ -531,11 +547,13 @@ static int imx7d_adc_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
+	ret = devm_add_action_or_reset(dev, __imx7d_adc_suspend,
+				       &indio_dev->dev);
+	if (ret)
+		return ret;
+
 	ret = devm_iio_device_register(dev, indio_dev);
 	if (ret) {
-		imx7d_adc_power_down(info);
-		clk_disable_unprepare(info->clk);
-		regulator_disable(info->vref);
 		dev_err(&pdev->dev, "Couldn't register the device.\n");
 		return ret;
 	}
@@ -543,37 +561,10 @@ static int imx7d_adc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int imx7d_adc_remove(struct platform_device *pdev)
-{
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-	struct imx7d_adc *info = iio_priv(indio_dev);
-
-	imx7d_adc_power_down(info);
-
-	clk_disable_unprepare(info->clk);
-	regulator_disable(info->vref);
-
-	return 0;
-}
-
-static int __maybe_unused imx7d_adc_suspend(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct imx7d_adc *info = iio_priv(indio_dev);
-
-	imx7d_adc_power_down(info);
-
-	clk_disable_unprepare(info->clk);
-	regulator_disable(info->vref);
-
-	return 0;
-}
-
 static SIMPLE_DEV_PM_OPS(imx7d_adc_pm_ops, imx7d_adc_suspend, imx7d_adc_resume);
 
 static struct platform_driver imx7d_adc_driver = {
 	.probe		= imx7d_adc_probe,
-	.remove		= imx7d_adc_remove,
 	.driver		= {
 		.name	= "imx7d_adc",
 		.of_match_table = imx7d_adc_match,
-- 
2.20.1