Currently to get the max pipe_bpp with dsc we take the min of limits->pipe.max_bpp and dsc max bpp (dsc max bpc * 3). This can result in problems when limits->pipe.max_bpp is less than the computed dsc min bpp (dsc min bpc * 3).
Replace the min/max functions with clamp while computing limits->pipe.max/min_bpp to ensure that the pipe_bpp limits are constrained within the DSC-defined minimum and maximum values. Signed-off-by: Ankit Nautiyal <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 55ee438a4fec..02009ae03840 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2490,8 +2490,11 @@ intel_dp_compute_config_limits(struct intel_dp *intel_dp, int dsc_min_bpc = intel_dp_dsc_min_src_input_bpc(display); int dsc_max_bpc = intel_dp_dsc_max_src_input_bpc(display); - limits->pipe.max_bpp = min(limits->pipe.max_bpp, dsc_max_bpc * 3); - limits->pipe.min_bpp = max(limits->pipe.min_bpp, dsc_min_bpc * 3); + 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); } if (intel_dp->use_max_params) { -- 2.45.2
