Op 23-09-15 om 14:42 schreef Daniel Vetter: > On Wed, Sep 16, 2015 at 09:23:59AM +0200, Maarten Lankhorst wrote: >> When diagnosing a unrelated bug for someone on irc, it would seem the hardware can >> be brought up by the BIOS with the embedded displayport using the SPLL for spread spectrum. >> >> Right now this is not handled well in i915, and it calculates the crtc needs to >> be reprogrammed on the first modeset without SSC, but the SPLL itself was kept >> active. Fix this by exposing SPLL as a shared pll that will not be returned >> by intel_get_shared_dpll; you have to know it exists to use it. ;-) >> >> Cc: Emil Renner Berthing <kernel@xxxxxxxx> >> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> >> --- >> RFC because I haven't tested it with VGA, but it seems to work according to fix >> the problem mentioned above. > lgtm and gets rid of some of the fdi vs. normal ddi special-casing, which > is nice (since that's a problem for bxt dsi too). I'll pick this up as > soon as you managed to run this on some hsw (since we inject a fake vga > screen for igt tests you don't even need a real screen). > Emil, do you have a haswell and if so can you test with intel-gpu-tools? kms_pipe_crc_basic and see if it works correctly. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
