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path: root/drivers/gpu/drm/amd/display/dc/dsc/drm_dsc_dc.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dsc/drm_dsc_dc.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dsc/drm_dsc_dc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/drm_dsc_dc.c b/drivers/gpu/drm/amd/display/dc/dsc/drm_dsc_dc.c
index 67089765780b..340ef4d41ebd 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/drm_dsc_dc.c
+++ b/drivers/gpu/drm/amd/display/dc/dsc/drm_dsc_dc.c
@@ -377,6 +377,12 @@ int drm_dsc_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg)
vdsc_cfg->rc_bits = (hrd_delay * vdsc_cfg->bits_per_pixel) / 16;
vdsc_cfg->initial_dec_delay = hrd_delay - vdsc_cfg->initial_xmit_delay;
+ /* As per DSC spec v1.2a recommendation: */
+ if (vdsc_cfg->native_420)
+ vdsc_cfg->second_line_offset_adj = 512;
+ else
+ vdsc_cfg->second_line_offset_adj = 0;
+
return 0;
}
EXPORT_SYMBOL(drm_dsc_compute_rc_parameters);