diff options
Diffstat (limited to 'drivers/iio/adc/spear_adc.c')
| -rw-r--r-- | drivers/iio/adc/spear_adc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/iio/adc/spear_adc.c b/drivers/iio/adc/spear_adc.c index e3a865c79686..50b0a607baeb 100644 --- a/drivers/iio/adc/spear_adc.c +++ b/drivers/iio/adc/spear_adc.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/io.h> +#include <linux/bitfield.h> #include <linux/clk.h> #include <linux/err.h> #include <linux/completion.h> @@ -29,9 +30,9 @@ /* Bit definitions for SPEAR_ADC_STATUS */ #define SPEAR_ADC_STATUS_START_CONVERSION BIT(0) -#define SPEAR_ADC_STATUS_CHANNEL_NUM(x) ((x) << 1) +#define SPEAR_ADC_STATUS_CHANNEL_NUM_MASK GENMASK(3, 1) #define SPEAR_ADC_STATUS_ADC_ENABLE BIT(4) -#define SPEAR_ADC_STATUS_AVG_SAMPLE(x) ((x) << 5) +#define SPEAR_ADC_STATUS_AVG_SAMPLE_MASK GENMASK(8, 5) #define SPEAR_ADC_STATUS_VREF_INTERNAL BIT(9) #define SPEAR_ADC_DATA_MASK 0x03ff @@ -157,8 +158,8 @@ static int spear_adc_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_RAW: mutex_lock(&st->lock); - status = SPEAR_ADC_STATUS_CHANNEL_NUM(chan->channel) | - SPEAR_ADC_STATUS_AVG_SAMPLE(st->avg_samples) | + status = FIELD_PREP(SPEAR_ADC_STATUS_CHANNEL_NUM_MASK, chan->channel) | + FIELD_PREP(SPEAR_ADC_STATUS_AVG_SAMPLE_MASK, st->avg_samples) | SPEAR_ADC_STATUS_START_CONVERSION | SPEAR_ADC_STATUS_ADC_ENABLE; if (st->vref_external == 0) @@ -274,8 +275,7 @@ static int spear_adc_probe(struct platform_device *pdev) indio_dev = devm_iio_device_alloc(dev, sizeof(struct spear_adc_state)); if (!indio_dev) - return dev_err_probe(dev, -ENOMEM, - "failed allocating iio device\n"); + return -ENOMEM; st = iio_priv(indio_dev); st->dev = dev; |