This is a note to let you know that I've just added the patch titled
spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath()
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
spi-spi-s3c64xx-swap-s3c64xx_spi_set_cs-and-s3c64xx_.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f1b492083a8502f7a75c39ef03708562622f1c67
Author: Å?ukasz Stelmach <l.stelmach@xxxxxxxxxxx>
Date: Fri Oct 2 14:22:35 2020 +0200
spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath()
[ Upstream commit 581e2b41977dfc2d4c26c8e976f89c43bb92f9bf ]
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.
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Å?ukasz Stelmach <l.stelmach@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201002122243.26849-2-l.stelmach@xxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 7b7151ec14c8a..322f75f89c713 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -678,11 +678,11 @@ 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)
