Without this i.e. the m25p driver is not working properly.
Its used to calculate the return value of the read/write function of
some devices. If the value is missing, barebox would always
miscalculate the next transfer sizes.
Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
---
drivers/spi/atmel_spi.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index faa03b1..47e6756 100644
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -190,6 +190,7 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *mesg)
struct spi_transfer *t = NULL;
unsigned int bits = spi->bits_per_word;
+ mesg->actual_length = 0;
ret = master->setup(spi);
if (ret < 0) {
dev_dbg(master->dev, "transfer: master setup failed\n");
@@ -210,6 +211,7 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *mesg)
u32 tx_val;
int i = 0, rx_val;
+ mesg->actual_length += t->len;
if (bits <= 8) {
const u8 *txbuf = t->tx_buf;
u8 *rxbuf = t->rx_buf;
--
1.7.7.1
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