On Thu, 24 Aug 2023, Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx> wrote: > Edid specific BPC constraints are stored in limits->max_bpp. Honor these > limits while computing the input bpp for DSC. > > v2: Use int instead of u8 for computations. (Jani) > Add closes tag. (Ankit) > > Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9161 > Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx> > Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c > index 7067ee3a4bd3..8f3dc79089ea 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -2061,9 +2061,10 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp, > if (forced_bpp) { > pipe_bpp = forced_bpp; > } else { > + int max_bpc = min(limits->max_bpp / 3, (int)conn_state->max_requested_bpc); Hmh, only noticed after pushing, there's min_t() for when the types differ. BR, Jani. > + > /* For eDP use max bpp that can be supported with DSC. */ > - pipe_bpp = intel_dp_dsc_compute_max_bpp(intel_dp, > - conn_state->max_requested_bpc); > + pipe_bpp = intel_dp_dsc_compute_max_bpp(intel_dp, max_bpc); > if (!is_dsc_pipe_bpp_sufficient(i915, conn_state, limits, pipe_bpp)) { > drm_dbg_kms(&i915->drm, > "Computed BPC is not in DSC BPC limits\n"); -- Jani Nikula, Intel Open Source Graphics Center
