diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 1a645b27820f..2dadbf7e8922 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2661,16 +2661,30 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp, return true; } -static void -intel_dp_dsc_compute_pipe_bpp_limits(struct intel_dp *intel_dp, +static bool +intel_dp_dsc_compute_pipe_bpp_limits(struct intel_connector *connector, struct link_config_limits *limits) { - struct intel_display *display = to_intel_display(intel_dp); + struct intel_display *display = to_intel_display(connector); + const struct link_config_limits orig_limits = *limits; int dsc_min_bpc = intel_dp_dsc_min_src_input_bpc(); int dsc_max_bpc = intel_dp_dsc_max_src_input_bpc(display); - limits->pipe.max_bpp = clamp(limits->pipe.max_bpp, dsc_min_bpc * 3, dsc_max_bpc * 3); - limits->pipe.min_bpp = clamp(limits->pipe.min_bpp, dsc_min_bpc * 3, dsc_max_bpc * 3); + limits->pipe.min_bpp = max(limits->pipe.min_bpp, dsc_min_bpc * 3); + limits->pipe.max_bpp = min(limits->pipe.max_bpp, dsc_max_bpc * 3); + + if (limits->pipe.min_bpp <= 0 || + limits->pipe.min_bpp > limits->pipe.max_bpp) { + drm_dbg_kms(display->drm, + "[CONNECTOR:%d:%s] Invalid DSC src/sink input BPP (src:%d-%d pipe:%d-%d)\n", + connector->base.base.id, connector->base.name, + dsc_min_bpc * 3, dsc_max_bpc * 3, + orig_limits.pipe.min_bpp, orig_limits.pipe.max_bpp); + + return false; + } + + return true; } bool @@ -2710,8 +2724,8 @@ intel_dp_compute_config_limits(struct intel_dp *intel_dp, respect_downstream_limits); } - if (dsc) - intel_dp_dsc_compute_pipe_bpp_limits(intel_dp, limits); + if (dsc && !intel_dp_dsc_compute_pipe_bpp_limits(connector, limits)) + return false; if (is_mst || intel_dp->use_max_params) { /* |