diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ed6addf7427..711ec331489 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3989,7 +3989,7 @@ static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, { struct drm_device *dev = intel_crtc->base.dev; struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; - int target_clock, lane, link_bw; + int target_clock, lane, link_bw, fdi_dotclock; bool setup_ok, needs_recompute = false; retry: @@ -4007,14 +4007,16 @@ retry: else target_clock = adjusted_mode->clock; - lane = ironlake_get_lanes_required(target_clock, link_bw, + fdi_dotclock = target_clock; + if (pipe_config->pixel_multiplier > 1) + fdi_dotclock /= pipe_config->pixel_multiplier; + + lane = ironlake_get_lanes_required(fdi_dotclock, link_bw, pipe_config->pipe_bpp); pipe_config->fdi_lanes = lane; - if (pipe_config->pixel_multiplier > 1) - link_bw *= pipe_config->pixel_multiplier; - intel_link_compute_m_n(pipe_config->pipe_bpp, lane, target_clock, + intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, link_bw, &pipe_config->fdi_m_n); setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev, |