Re: spi_mpc8xxx.c: chip select polarity problem
From: Anton Vorontsov <hidden>
Date: 2009-11-26 18:42:00
Also in:
linux-spi
From: Anton Vorontsov <hidden>
Date: 2009-11-26 18:42:00
Also in:
linux-spi
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@gmail.com irc://irc.freenode.net/bd2