[PATCH] drm/amdgpu/display: disable eDP fast boot optimization on DCE8

[Alex Deucher]

On Tue, Aug 21, 2018 at 3:38 PM Harry Wentland <harry.wentland at amd.com> wrote:
>
> On 2018-08-16 04:38 PM, Alex Deucher wrote:
> > Seems to cause blank screens.
> >
> > Bug: https://bugs.freedesktop.org/show_bug.cgi?id=106940
> > Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
>
> Your SOB is using a different email from the author. Mind if I change it to your gmail?

Weird.  not sure what happened there.  I'd prefer you just override
the author to my amd address.

Alex

>
> Harry
>
> > ---
> >  drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 8 +++++++-
> >  1 file changed, 7 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
> > index 350ee3e3e34d..2e3f85ceeaa9 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
> > @@ -1562,7 +1562,13 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context)
> >       bool can_eDP_fast_boot_optimize = false;
> >
> >       if (edp_link) {
> > -             can_eDP_fast_boot_optimize =
> > +             /* this seems to cause blank screens on DCE8 */
> > +             if ((dc->ctx->dce_version == DCE_VERSION_8_0) ||
> > +                 (dc->ctx->dce_version == DCE_VERSION_8_1) ||
> > +                 (dc->ctx->dce_version == DCE_VERSION_8_3))
> > +                     can_eDP_fast_boot_optimize = false;
> > +             else
> > +                     can_eDP_fast_boot_optimize =
> >                               edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc);
> >       }
> >
> >