when using SPI on Allwinner A20 with CPOL=1 and CPHA=1 with Linux 4.8.0-rc6 
Psychotic Stoned Sheep I see a weird dip in the beginning (which also confuses 
the slave) on the SCLK line right when SSEL goes low - see attachment.

The lines are, starting from the top, SCLK MOSI MISO SSEL.

I'm using spidev.

Did anyone see this problem before?


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