On Mon, May 09, 2016 at 11:19:16AM +0300, Jani Nikula wrote: > On Fri, 06 May 2016, Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx> wrote: > > On Fri, May 06, 2016 at 12:21:04PM +0100, Sudip Mukherjee wrote: > >> Hi Daniel, > >> I am trying to use i915 in one of our board which has Intel ATOM E3840. > >> I know Intel has released emgd driver for this cpu to use i915 but emgd > >> is not supported on v4.5 (or v4.6). The board is having SFI (simple > >> firmware interface) and maybe for that i915 is not finding the VBIOS and > >> other required information. > > > > I have been looking more into it and looks like it is supposed to use > > dsi but since there is no vbt so has_mipi is never set and dsi is never > > initialized. > > Can you please point me to somewhere or maybe give some idea how i can > > use i915 in a board where there is no vbt. > > Hate to say it, but the i915 DSI support heavily relies on the VBT being > present. Basically all the configuration is there. I haven't got a clue > how emgd handles it. Maybe Matt does? emgd has a config file where we have to specify the configuration for it to work. > > Basically you'd either have to figure out the configuration for the > panel from somewhere and feed it to intel_dsi_panel_vbt.c, or write a > panel specific driver of your own. and i guess i will also need to modify intel_dsi_init() as that is also taking some of the information from the VBT. Thanks for the information. regards sudip _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
