It was <2020-08-19 śro 14:38>, when Krzysztof Kozlowski wrote:
On Wed, Aug 19, 2020 at 02:32:01PM +0200, Łukasz Stelmach wrote:
quoted
Fix issues with DMA transfers bigger than 512 on Exynos3250.
Fix, but how? With proper explanation this should go to CC-stable.
Honestly, I don't know and I couldn't find out why. It makes stuff
work. There has been a commit like this before
0f5a751ace25 spi/s3c64xx: Enable GPIO /CS prior to starting hardware
Apparently, it was lost in
0732a9d2a155 spi/s3c64xx: Use core message handling
quoted
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
---
drivers/spi/spi-s3c64xx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index cf67ea60dc0e..fb5e2ba4b6b9 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)
--
2.26.2
--
Łukasz Stelmach
Samsung R&D Institute Poland
Samsung Electronics