mxs/spi: Restart the block after unsuccessful transfer

Restart the SSP block in case the SSP transfer failed in any way.
The block hung in some cases otherwise.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 130a43688352..447f917fe66f 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -439,8 +439,10 @@ static int mxs_spi_transfer_one(struct spi_master *master,
                 }
 
                 m->actual_length += t->len;
-                if (status)
+                if (status) {
+                        stmp_reset_block(ssp->base);
                         break;
+                }
 
                 first = last = 0;
         }