linux-kernel - [PATCH v2 1/2] iio: proximity: sx_common: Don't use IIO device for properties

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Date:   Wed, 15 Jun 2022 14:47:45 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Gwendal Grignou <gwendal@...omium.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>
Subject: [PATCH v2 1/2] iio: proximity: sx_common: Don't use IIO device for properties

It's not correct to use artificial device created by IIO core to
retrieve device properties. Even ->get_default_reg() callback
takes a simple struct device pointer which suggests it wants to
operate on the real device.

Correct this by replacing pointer to IIO device by a real device
pointer in the caller of ->get_default_reg().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2: new patch (necessary prerequisite for the following change)
 drivers/iio/proximity/sx_common.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/proximity/sx_common.c b/drivers/iio/proximity/sx_common.c
index 8ad814d96b7e..9f2e47385198 100644
--- a/drivers/iio/proximity/sx_common.c
+++ b/drivers/iio/proximity/sx_common.c
@@ -434,7 +434,7 @@ static void sx_common_regulator_disable(void *_data)
 
 #define SX_COMMON_SOFT_RESET				0xde
 
-static int sx_common_init_device(struct iio_dev *indio_dev)
+static int sx_common_init_device(struct device *dev, struct iio_dev *indio_dev)
 {
 	struct sx_common_data *data = iio_priv(indio_dev);
 	struct sx_common_reg_default tmp;
@@ -456,8 +456,7 @@ static int sx_common_init_device(struct iio_dev *indio_dev)
 
 	/* Program defaults from constant or BIOS. */
 	for (i = 0; i < data->chip_info->num_default_regs; i++) {
-		initval = data->chip_info->ops.get_default_reg(&indio_dev->dev,
-							       i, &tmp);
+		initval = data->chip_info->ops.get_default_reg(dev, i, &tmp);
 		ret = regmap_write(data->regmap, initval->reg, initval->def);
 		if (ret)
 			return ret;
@@ -530,7 +529,7 @@ int sx_common_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, indio_dev);
 
-	ret = sx_common_init_device(indio_dev);
+	ret = sx_common_init_device(dev, indio_dev);
 	if (ret)
 		return dev_err_probe(dev, ret, "Unable to initialize sensor\n");
 
-- 
2.35.1