diff options
Diffstat (limited to 'drivers/iio/adc/max1118.c')
| -rw-r--r-- | drivers/iio/adc/max1118.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c index 01b20e420ac4..6efb0b43d938 100644 --- a/drivers/iio/adc/max1118.c +++ b/drivers/iio/adc/max1118.c @@ -36,6 +36,11 @@ struct max1118 { struct spi_device *spi; struct mutex lock; struct regulator *reg; + /* Ensure natural alignment of buffer elements */ + struct { + u8 channels[2]; + s64 ts __aligned(8); + } scan; u8 data ____cacheline_aligned; }; @@ -166,7 +171,6 @@ static irqreturn_t max1118_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct max1118 *adc = iio_priv(indio_dev); - u8 data[16] = { }; /* 2x 8-bit ADC data + padding + 8 bytes timestamp */ int scan_index; int i = 0; @@ -184,10 +188,10 @@ static irqreturn_t max1118_trigger_handler(int irq, void *p) goto out; } - data[i] = ret; + adc->scan.channels[i] = ret; i++; } - iio_push_to_buffers_with_timestamp(indio_dev, data, + iio_push_to_buffers_with_timestamp(indio_dev, &adc->scan, iio_get_time_ns(indio_dev)); out: mutex_unlock(&adc->lock); |