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path: root/drivers/iio/adc/max11100.c
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Diffstat (limited to 'drivers/iio/adc/max11100.c')
-rw-r--r--drivers/iio/adc/max11100.c34
1 files changed, 11 insertions, 23 deletions
diff --git a/drivers/iio/adc/max11100.c b/drivers/iio/adc/max11100.c
index 6cf21758ca66..eb1ce6a0315c 100644
--- a/drivers/iio/adc/max11100.c
+++ b/drivers/iio/adc/max11100.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>
+#include <asm/unaligned.h>
#include <linux/iio/iio.h>
#include <linux/iio/driver.h>
@@ -63,7 +64,7 @@ static int max11100_read_single(struct iio_dev *indio_dev, int *val)
return -EINVAL;
}
- *val = (state->buffer[1] << 8) | state->buffer[2];
+ *val = get_unaligned_be16(&state->buffer[1]);
return 0;
}
@@ -101,6 +102,11 @@ static const struct iio_info max11100_info = {
.read_raw = max11100_read_raw,
};
+static void max11100_regulator_disable(void *reg)
+{
+ regulator_disable(reg);
+}
+
static int max11100_probe(struct spi_device *spi)
{
int ret;
@@ -111,8 +117,6 @@ static int max11100_probe(struct spi_device *spi)
if (!indio_dev)
return -ENOMEM;
- spi_set_drvdata(spi, indio_dev);
-
state = iio_priv(indio_dev);
state->spi = spi;
@@ -130,27 +134,12 @@ static int max11100_probe(struct spi_device *spi)
if (ret)
return ret;
- ret = iio_device_register(indio_dev);
+ ret = devm_add_action_or_reset(&spi->dev, max11100_regulator_disable,
+ state->vref_reg);
if (ret)
- goto disable_regulator;
-
- return 0;
-
-disable_regulator:
- regulator_disable(state->vref_reg);
-
- return ret;
-}
-
-static int max11100_remove(struct spi_device *spi)
-{
- struct iio_dev *indio_dev = spi_get_drvdata(spi);
- struct max11100_state *state = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
- regulator_disable(state->vref_reg);
+ return ret;
- return 0;
+ return devm_iio_device_register(&spi->dev, indio_dev);
}
static const struct of_device_id max11100_ids[] = {
@@ -165,7 +154,6 @@ static struct spi_driver max11100_driver = {
.of_match_table = max11100_ids,
},
.probe = max11100_probe,
- .remove = max11100_remove,
};
module_spi_driver(max11100_driver);