On Fri, Feb 14, 2014 at 08:44:07AM +0100, Wolfram Sang wrote: > > > > For non-a10, That should be at least > > > > > > compatible = "allwinner,sun4i-a13-i2c", "allwinner,sun4i-a10-i2c"; > > > > > > or > > > > > > compatible = "allwinner,sun4i-a13-i2c", "allwinner,sun4i-i2c"; > > > > > > depending on the outcome above. > > > > > > Or is my knowledge outdated already? > > > > > > > Since they are strictly compatible, we don't need to introduce any > > different compatible string here. > > You never know all errata in advance. From what I know, one should > always use the specfic naming first, and then the generic fallback. So, > in case a distinction is needed later (think errata), then one doesn't > need to change the devicetrees. > And adding a A13-specific compatible wouldn't change anything, because it does work on at least one revision of them, so if you'd have to deal with an errata, you'd have to introduce a new compatible for this revision only anyway. -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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