diff options
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
| -rw-r--r-- | drivers/iio/industrialio-buffer.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index d7e908acb480..7340922d367f 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -610,6 +610,7 @@ static void iio_free_scan_mask(struct iio_dev *indio_dev, struct iio_device_config { unsigned int mode; + unsigned int watermark; const unsigned long *scan_mask; unsigned int scan_bytes; bool scan_timestamp; @@ -642,10 +643,14 @@ static int iio_verify_update(struct iio_dev *indio_dev, if (buffer == remove_buffer) continue; modes &= buffer->access->modes; + config->watermark = min(config->watermark, buffer->watermark); } - if (insert_buffer) + if (insert_buffer) { modes &= insert_buffer->access->modes; + config->watermark = min(config->watermark, + insert_buffer->watermark); + } /* Definitely possible for devices to support both of these. */ if ((modes & INDIO_BUFFER_TRIGGERED) && indio_dev->trig) { @@ -743,6 +748,10 @@ static int iio_enable_buffers(struct iio_dev *indio_dev, } } + if (indio_dev->info->hwfifo_set_watermark) + indio_dev->info->hwfifo_set_watermark(indio_dev, + config->watermark); + indio_dev->currentmode = config->mode; if (indio_dev->setup_ops->postenable) { @@ -974,9 +983,6 @@ static ssize_t iio_buffer_store_watermark(struct device *dev, } buffer->watermark = val; - - if (indio_dev->info->hwfifo_set_watermark) - indio_dev->info->hwfifo_set_watermark(indio_dev, val); out: mutex_unlock(&indio_dev->mlock); |