diff mbox

[1/6] spi/s3c64xx: Flush FIFOs prior to cleaning up transfer

Message ID 1380311049-973-1-git-send-email-broonie@kernel.org (mailing list archive)
State New, archived
Headers show

Commit Message

Mark Brown Sept. 27, 2013, 7:44 p.m. UTC 
From: Mark Brown <broonie@linaro.org>

Ensure that the FIFOs are fully drained before we deassert /CS or do any
delays that have been requested in order to ensure that the behaviour
visible on the bus matches that which was requested by the caller.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 229c6b9..2e267ce 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -960,6 +960,8 @@  static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 			goto out;
 		}
 
+		flush_fifo(sdd);
+
 		if (xfer->delay_usecs)
 			udelay(xfer->delay_usecs);
 
@@ -972,8 +974,6 @@  static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 		}
 
 		msg->actual_length += xfer->len;
-
-		flush_fifo(sdd);
 	}
 
 out: