[PATCH v2] spi: bitbang: only toggle bitchanges

[Mark Brown]

On Tue, Mar 31, 2015 at 10:13:00PM +0200, Michael Grzeschik wrote:

> Mark, should I send a corrected version or do you squash the 31 into the
> applied patch?

If you could send me a patch (either incremental or squashed is fine)
that'd be good - I'd prefer to have something from you as I'd need to
set up a test system for bitbang.
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