Stephan Olbrich e9dd4edcc9
spi: bcm2835aux: fix CPOL/CPHA setting ...
The auxiliary spi supports only CPHA=0 modes as the first bit is
always output to the pin before the first clock cycle. In CPHA=1
modes the first clock edge outputs the second bit hence the slave
can never read the first bit.
Also the CPHA registers switch between clocking data in/out on
rising/falling edge hence depend on the CPOL setting.
Signed-off-by: Stephan Olbrich <stephanolbrich@gmx.de >
Reviewed-by: Eric Anholt <eric@anholt.net >
Signed-off-by: Mark Brown <broonie@kernel.org >
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e9dd4edcc9