diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 32292c0be2bd..db5f536bde05 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1377,7 +1377,18 @@ static int intel_dp_dsc_compute_bpp(struct intel_dp *intel_dp, u8 max_req_bpc) return 0; } -#define DSC_SUPPORTED_VERSION_MIN 1 +static int intel_dp_source_dsc_version_minor(struct intel_dp *intel_dp) +{ + struct drm_i915_private *i915 = dp_to_i915(intel_dp); + + return DISPLAY_VER(i915) >= 14 ? 2 : 1; +} + +static int intel_dp_sink_dsc_version_minor(struct intel_dp *intel_dp) +{ + return (intel_dp->dsc_dpcd[DP_DSC_REV - DP_DSC_SUPPORT] & DP_DSC_MINOR_MASK) >> + DP_DSC_MINOR_SHIFT; +} static int intel_dp_dsc_compute_params(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) @@ -1416,9 +1427,8 @@ static int intel_dp_dsc_compute_params(struct intel_encoder *encoder, (intel_dp->dsc_dpcd[DP_DSC_REV - DP_DSC_SUPPORT] & DP_DSC_MAJOR_MASK) >> DP_DSC_MAJOR_SHIFT; vdsc_cfg->dsc_version_minor = - min(DSC_SUPPORTED_VERSION_MIN, - (intel_dp->dsc_dpcd[DP_DSC_REV - DP_DSC_SUPPORT] & - DP_DSC_MINOR_MASK) >> DP_DSC_MINOR_SHIFT); + min(intel_dp_source_dsc_version_minor(intel_dp), + intel_dp_sink_dsc_version_minor(intel_dp)); vdsc_cfg->convert_rgb = intel_dp->dsc_dpcd[DP_DSC_DEC_COLOR_FORMAT_CAP - DP_DSC_SUPPORT] & DP_DSC_RGB; |