driver: spi: Modify core to compute the message length
Make spi core calculate the message length while
populating the other transfer parameters.
Usecase, driver can use it to populate framelength filed in their
controller.
Signed-off-by: Sourav Poddar <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 978dda2..7e3446c 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1375,6 +1375,7 @@
* it is not set for this transfer.
*/
list_for_each_entry(xfer, &message->transfers, transfer_list) {
+ message->frame_length += xfer->len;
if (!xfer->bits_per_word)
xfer->bits_per_word = spi->bits_per_word;
if (!xfer->speed_hz)
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 28e440b..aadd0a8 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -578,6 +578,7 @@
/* completion is reported through a callback */
void (*complete)(void *context);
void *context;
+ unsigned frame_length;
unsigned actual_length;
int status;
