diff mbox series

[v2,1/9] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath()

Message ID 20200821161401.11307-2-l.stelmach@samsung.com
State Superseded
Headers show
Series [v2,1/9] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath() | expand

Commit Message

Lukasz Stelmach Aug. 21, 2020, 4:13 p.m. UTC 
This and the next patch fix issues with DMA transfers bigger than
512 bytes on Exynos3250. Without the patches such transfers fail
to complete. This solution to the problem is found in the vendor kernel
for ARTIK5 boards based on Exynos3250.

Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
---
 drivers/spi/spi-s3c64xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 924b24441789..26c7cb79cd78 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -685,11 +685,11 @@  static int s3c64xx_spi_transfer_one(struct spi_master *master,
 		sdd->state &= ~RXBUSY;
 		sdd->state &= ~TXBUSY;
 
-		s3c64xx_enable_datapath(sdd, xfer, use_dma);
-
 		/* Start the signals */
 		s3c64xx_spi_set_cs(spi, true);
 
+		s3c64xx_enable_datapath(sdd, xfer, use_dma);
+
 		spin_unlock_irqrestore(&sdd->lock, flags);
 
 		if (use_dma)