[PATCH 03/13] spi: spi-fsl-lpspi: Reset FIFO and disable module on transfer abort

[James Clark <james.clark@linaro.org>]

From: Larisa Grigore <larisa.grigore@nxp.com>

In DMA mode fsl_lpspi_reset() is always called at the end, even when the
transfer is aborted. When not using DMA, aborts skip the reset leaving
the FIFO filled and the module enabled.

Fix it by always calling fsl_lpspi_reset().

Fixes: a15dc3d657fa ("spi: lpspi: Fix CLK pin becomes low before one transfer")
Signed-off-by: Larisa Grigore <larisa.grigore@nxp.com>
Signed-off-by: James Clark <james.clark@linaro.org>
---
 drivers/spi/spi-fsl-lpspi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index c65eb6d31ee7..aab92ee7eb94 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -734,12 +734,10 @@ static int fsl_lpspi_pio_transfer(struct spi_controller *controller,
 	fsl_lpspi_write_tx_fifo(fsl_lpspi);
 
 	ret = fsl_lpspi_wait_for_completion(controller);
-	if (ret)
-		return ret;
 
 	fsl_lpspi_reset(fsl_lpspi);
 
-	return 0;
+	return ret;
 }
 
 static int fsl_lpspi_transfer_one(struct spi_controller *controller,

-- 
2.34.1