Re: [PATCH] devicetree: net: micrel-ksz90x1.txt: Properly explain skew settings
From: David Miller
Date: Thu Oct 06 2016 - 20:49:39 EST
From: Mike Looijmans <mike.looijmans@xxxxxxxx>
Date: Wed, 5 Oct 2016 16:03:08 +0200
> The KSZ9031 skew registers contain an offset, the chip's default value
> is "neutral" which does not add any skew. Programming a 0 into a skew
> property will actually set it the maximal negative adjustment and not
> to a neutral position as one would expect.
> Explain this situation in the devicetree binding documentation and list
> the settings that the chip considers neutral.
> Changing the implementation to accept negative values would have been
> a better solution, but would break existing configurations.
> Signed-off-by: Mike Looijmans <mike.looijmans@xxxxxxxx>