diff options
| -rw-r--r-- | drivers/iio/adc/ti-adc161s626.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/iio/adc/ti-adc161s626.c b/drivers/iio/adc/ti-adc161s626.c index 42968d96572b..be1cc2e77862 100644 --- a/drivers/iio/adc/ti-adc161s626.c +++ b/drivers/iio/adc/ti-adc161s626.c @@ -15,6 +15,7 @@ #include <linux/init.h> #include <linux/err.h> #include <linux/spi/spi.h> +#include <linux/unaligned.h> #include <linux/iio/iio.h> #include <linux/iio/trigger.h> #include <linux/iio/buffer.h> @@ -70,6 +71,7 @@ struct ti_adc_data { u8 read_size; u8 shift; + u8 buf[3] __aligned(IIO_DMA_MINALIGN); }; static int ti_adc_read_measurement(struct ti_adc_data *data, @@ -78,26 +80,20 @@ static int ti_adc_read_measurement(struct ti_adc_data *data, int ret; switch (data->read_size) { - case 2: { - __be16 buf; - - ret = spi_read(data->spi, (void *) &buf, 2); + case 2: + ret = spi_read(data->spi, data->buf, 2); if (ret) return ret; - *val = be16_to_cpu(buf); + *val = get_unaligned_be16(data->buf); break; - } - case 3: { - __be32 buf; - - ret = spi_read(data->spi, (void *) &buf, 3); + case 3: + ret = spi_read(data->spi, data->buf, 3); if (ret) return ret; - *val = be32_to_cpu(buf) >> 8; + *val = get_unaligned_be24(data->buf); break; - } default: return -EINVAL; } |