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: >> 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
>>
>> Signed-off-by: Łukasz Stelmach <[email protected]>
>> ---
>> 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
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