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Message-Id: <20210913115237.301310-1-aardelean@deviqon.com>
Date: Mon, 13 Sep 2021 14:52:37 +0300
From: Alexandru Ardelean <aardelean@...iqon.com>
To: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Cc: jic23@...nel.org, Alexandru Ardelean <aardelean@...iqon.com>
Subject: [PATCH] iio: dac: ad5064: convert probe to full device-managed
This change converts the probe of the AD5064 driver to use only
device-managed functions.
The regulator_bulk_disable() is passed on a devm_add_action_or_reset() hook
and the devm_iio_device_register() can be used to register the IIO device.
The driver has both I2C and SPI hooks inside, so all these can be removed.
Signed-off-by: Alexandru Ardelean <aardelean@...iqon.com>
---
drivers/iio/dac/ad5064.c | 49 ++++++++++------------------------------
1 file changed, 12 insertions(+), 37 deletions(-)
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index dff623b65e4f..fd9cac4f6321 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -843,6 +843,13 @@ static int ad5064_request_vref(struct ad5064_state *st, struct device *dev)
return ret;
}
+static void ad5064_bulk_reg_disable(void *data)
+{
+ struct ad5064_state *st = data;
+
+ regulator_bulk_disable(ad5064_num_vref(st), st->vref_reg);
+}
+
static int ad5064_probe(struct device *dev, enum ad5064_type type,
const char *name, ad5064_write_func write)
{
@@ -858,7 +865,6 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
st = iio_priv(indio_dev);
mutex_init(&st->lock);
- dev_set_drvdata(dev, indio_dev);
st->chip_info = &ad5064_chip_info_tbl[type];
st->dev = dev;
@@ -872,6 +878,10 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
ret = regulator_bulk_enable(ad5064_num_vref(st), st->vref_reg);
if (ret)
return ret;
+
+ ret = devm_add_action_or_reset(dev, ad5064_bulk_reg_disable, st);
+ if (ret)
+ return ret;
}
indio_dev->name = name;
@@ -887,30 +897,7 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
st->dac_cache[i] = midscale;
}
- ret = iio_device_register(indio_dev);
- if (ret)
- goto error_disable_reg;
-
- return 0;
-
-error_disable_reg:
- if (!st->use_internal_vref)
- regulator_bulk_disable(ad5064_num_vref(st), st->vref_reg);
-
- return ret;
-}
-
-static int ad5064_remove(struct device *dev)
-{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5064_state *st = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
-
- if (!st->use_internal_vref)
- regulator_bulk_disable(ad5064_num_vref(st), st->vref_reg);
-
- return 0;
+ return devm_iio_device_register(dev, indio_dev);
}
#if IS_ENABLED(CONFIG_SPI_MASTER)
@@ -932,11 +919,6 @@ static int ad5064_spi_probe(struct spi_device *spi)
ad5064_spi_write);
}
-static int ad5064_spi_remove(struct spi_device *spi)
-{
- return ad5064_remove(&spi->dev);
-}
-
static const struct spi_device_id ad5064_spi_ids[] = {
{"ad5024", ID_AD5024},
{"ad5025", ID_AD5025},
@@ -963,7 +945,6 @@ static struct spi_driver ad5064_spi_driver = {
.name = "ad5064",
},
.probe = ad5064_spi_probe,
- .remove = ad5064_spi_remove,
.id_table = ad5064_spi_ids,
};
@@ -1019,11 +1000,6 @@ static int ad5064_i2c_probe(struct i2c_client *i2c,
ad5064_i2c_write);
}
-static int ad5064_i2c_remove(struct i2c_client *i2c)
-{
- return ad5064_remove(&i2c->dev);
-}
-
static const struct i2c_device_id ad5064_i2c_ids[] = {
{"ad5625", ID_AD5625 },
{"ad5625r-1v25", ID_AD5625R_1V25 },
@@ -1081,7 +1057,6 @@ static struct i2c_driver ad5064_i2c_driver = {
.name = "ad5064",
},
.probe = ad5064_i2c_probe,
- .remove = ad5064_i2c_remove,
.id_table = ad5064_i2c_ids,
};
--
2.31.1
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