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-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 57fcde656108..a89c9eec62b3 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2646,7 +2646,7 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
limits->link.max_bpp_x16 = max_link_bpp_x16;
drm_dbg_kms(display->drm,
- "[ENCODER:%d:%s][CRTC:%d:%s] DP link limits: pixel clock %d kHz DSC %s max lanes %d max rate %d max pipe_bpp %d max link_bpp " FXP_Q4_FMT "\n",
+ "[ENCODER:%d:%s][CRTC:%d:%s] DP link limits: pixel clock %d kHz DSC %s max lanes %d max rate %d max pipe_bpp %d min link_bpp " FXP_Q4_FMT " max link_bpp " FXP_Q4_FMT "\n",
encoder->base.base.id, encoder->base.name,
crtc->base.base.id, crtc->base.name,
adjusted_mode->crtc_clock,
@@ -2654,8 +2654,13 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
limits->max_lane_count,
limits->max_rate,
limits->pipe.max_bpp,
+ FXP_Q4_ARGS(limits->link.min_bpp_x16),
FXP_Q4_ARGS(limits->link.max_bpp_x16));
+ if (limits->link.min_bpp_x16 <= 0 ||
+ limits->link.min_bpp_x16 > limits->link.max_bpp_x16)
+ return false;
+
return true;
}