On Mon, Aug 10, 2015 at 12:54:20PM -0700, Bjorn Andersson wrote: > On Fri 07 Aug 09:11 PDT 2015, Rob Clark wrote: > > > On Fri, Aug 7, 2015 at 9:19 AM, Thierry Reding <thierry.reding@xxxxxxxxx> wrote: > > > On Tue, Jul 21, 2015 at 03:36:02PM -0400, Rob Clark wrote: > [..] > > >> +- compatible: should be "auo,novatek-1080p-vid" > > > > > > This looks a little generic for a compatible string. Can't we get at the > > > specific panel model number that's been used? What if AUO ever produced > > > some other Novatek panel with a 1080p resolution? > > > > Maybe Sony or someone else can chime in? That somewhat generic name > > was all I could get from downstream android kernel. I'm sure there is > > a better possible name, although I have no means to find that out > > myself. > > > > We're working on it. > > > > Also, what's the -vid suffix for? > > > > the same panel seems to also work in cmd mode.. so idea was to have > > -vid and -cmd compat strings to choose which mode to operate in. > > > > An alternative would be to make it a bool property, to indicate video > mode - following how the framework is implemented. Please, let's not do either. This doesn't belong in the compatible string. The compatible string specifies the panel, and the panel supports both video and command modes. That's implied by the compatible string. Which mode to use is a configuration or policy decision and therefore doesn't belong in device tree. It should be up to the display driver to determine what the preferred mode of operation is. Thierry
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