From: Jonathan Cameron <jic23@xxxxxxxxx>
Basically avoids looking it up lots of times.
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx>
---
drivers/staging/iio/buffer.h | 1 +
drivers/staging/iio/industrialio-buffer.c | 3 +++
2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/iio/buffer.h b/drivers/staging/iio/buffer.h
index 9de581e..4b8f619 100644
--- a/drivers/staging/iio/buffer.h
+++ b/drivers/staging/iio/buffer.h
@@ -106,6 +106,7 @@ struct iio_buffer {
int scan_count;
long *scan_mask;
bool scan_timestamp;
+ unsigned scan_index_timestamp;
const struct iio_buffer_access_funcs *access;
const struct iio_buffer_setup_ops *setup_ops;
struct list_head scan_el_dev_attr_list;
diff --git a/drivers/staging/iio/industrialio-buffer.c b/drivers/staging/iio/industrialio-buffer.c
index f757bb7..cae7922 100644
--- a/drivers/staging/iio/industrialio-buffer.c
+++ b/drivers/staging/iio/industrialio-buffer.c
@@ -313,6 +313,9 @@ int iio_buffer_register(struct iio_dev *indio_dev,
if (ret < 0)
goto error_cleanup_dynamic;
attrcount += ret;
+ if (channels[i].type == IIO_TIMESTAMP)
+ buffer->scan_index_timestamp =
+ channels[i].scan_index;
}
if (indio_dev->masklength && buffer->scan_mask == NULL) {
buffer->scan_mask
--
1.7.7.3
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