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spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath()

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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@kernel.org>
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Link: https://lore.kernel.org/r/20201002122243.26849-2-l.stelmach@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Łukasz Stelmach 2020-10-02 14:22:35 +02:00 committed by Mark Brown
parent 184ec013fc
commit 581e2b4197
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-s3c64xx.c
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@ -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)