spi_mpc8xxx.c: chip select polarity problem
Anton Vorontsov
avorontsov at ru.mvista.com
Fri Nov 27 05:41:57 EST 2009
On Thu, Nov 26, 2009 at 11:16:34AM -0700, Grant Likely wrote:
[...]
> The spi-cs-high property is defined in
> Documentation/powerpc/dts-bindings/spi-bus.txt, but it definitely was
> a mistake
Yup.
> Currently the spi-cs-high property is parsed in the
> of_register_spi_devices() function, but the CS polarity needs to be
> known before registering devices. It needs to be factored out into
> another utility function callable by spi bus drivers so that it can
> get polarity data at probe time.
Untill we have this, Torsten's patch is a real improvement, and
works for non-broken hw/fw.
So I think it should be applied.
Thanks,
--
Anton Vorontsov
email: cbouatmailru at gmail.com
irc://irc.freenode.net/bd2
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