tree af2028d5db595790560568aa155973090cfca3bd
parent 38dbfb59d1175ef458d006556061adeaa8751b72
author Mark Brown <broonie@linaro.org> 1396136887 +0000
committer Mark Brown <broonie@linaro.org> 1396140492 +0000

spi: Fix handling of cs_change in core implementation

The core implementation of cs_change didn't follow the documentation
which says that cs_change in the middle of the transfer means to briefly
deassert chip select, instead it followed buggy drivers which change the
polarity of chip select.  Use a delay of 10us between deassert and
reassert simply from pulling numbers out of a hat.

Reported-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>