spi: Fix handling of cs_change in core implementation

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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>

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Mark Brown 2014-03-29 23:48:07 +00:00

parent 38dbfb59d1

commit 0b73aa63c1

1 changed files with 3 additions and 3 deletions

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drivers/spi/spi.c

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