DSC engine on ICL supports only 8 and 10 BPC as the input BPC. But DSC engine in TGL supports 8, 10 and 12 BPC. Add 12 BPC support for DSC while calculating compression configuration.
v2: Remove the separate define TGL_DP_DSC_MAX_SUPPORTED_BPC and use the value directly.(More such defines can be removed as part of future patches). (Ville) Cc: Ville Syrjälä <[email protected]> Cc: Manasi Navare <[email protected]> Signed-off-by: Anusha Srivatsa <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 0eb5d66f87a7..aa8bfb754fc1 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1914,8 +1914,12 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, if (!intel_dp_supports_dsc(intel_dp, pipe_config)) return -EINVAL; - dsc_max_bpc = min_t(u8, DP_DSC_MAX_SUPPORTED_BPC, - conn_state->max_requested_bpc); + /* Max DSC Input BPC for TGL+ is 12 */ + if (INTEL_GEN(dev_priv) >= 12) + dsc_max_bpc = min_t(u8, 12, conn_state->max_requested_bpc); + else + dsc_max_bpc = min_t(u8, DP_DSC_MAX_SUPPORTED_BPC, + conn_state->max_requested_bpc); pipe_bpp = intel_dp_dsc_compute_bpp(intel_dp, dsc_max_bpc); if (pipe_bpp < DP_DSC_MIN_SUPPORTED_BPC * 3) { -- 2.21.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
