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Diffstat (limited to 'drivers/spi/spi-sh-msiof.c')
-rw-r--r--drivers/spi/spi-sh-msiof.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c
index fcd261f98b9f..06bc4b170c47 100644
--- a/drivers/spi/spi-sh-msiof.c
+++ b/drivers/spi/spi-sh-msiof.c
@@ -784,11 +784,21 @@ static int sh_msiof_dma_once(struct sh_msiof_spi_priv *p, const void *tx,
goto stop_dma;
}
- /* wait for tx fifo to be emptied / rx fifo to be filled */
+ /* wait for tx/rx DMA completion */
ret = sh_msiof_wait_for_completion(p);
if (ret)
goto stop_reset;
+ if (!rx) {
+ reinit_completion(&p->done);
+ sh_msiof_write(p, IER, IER_TEOFE);
+
+ /* wait for tx fifo to be emptied */
+ ret = sh_msiof_wait_for_completion(p);
+ if (ret)
+ goto stop_reset;
+ }
+
/* clear status bits */
sh_msiof_reset_str(p);

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