On Wed, Sep 02, 2015 at 03:17:57PM -0500, Rob Herring wrote: [...] > Are there any eDP panels which don't have EDID and need panel details in DT?
Most panels need information other than EDID. They typically have some requirements regarding the power up sequence that aren't to be found anywhere in EDID or detectable by some other mechanism. A decision was therefore made a long time ago to require panels to be listed in DT with a specific compatible string. That way all of these details can be stashed away in drivers that know how to deal with these kinds of details. Thierry
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