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? 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. BR, Jani. -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
