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authorDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>2017-11-13 17:03:53 -0500
committerAlex Deucher <alexander.deucher@amd.com>2017-12-15 17:32:18 -0500
commit56a9b95c4d3386a98f69f641dd6018886ed2e9d6 (patch)
treefec89ee7e82addd0eb4c725912ae9c86c12900df /drivers/gpu/drm
parentb2162117171864ef48d43cf5d888f3e8012c6c06 (diff)
drm/amd/display: set chroma taps to 1 when not scaling
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c9
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c9
2 files changed, 13 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
index 3dce35e66b09..b142629a1058 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -900,6 +900,15 @@ bool dcn_validate_bandwidth(
v->override_vta_ps[input_idx] = pipe->plane_res.scl_data.taps.v_taps;
v->override_hta_pschroma[input_idx] = pipe->plane_res.scl_data.taps.h_taps_c;
v->override_vta_pschroma[input_idx] = pipe->plane_res.scl_data.taps.v_taps_c;
+ /*
+ * Spreadsheet doesn't handle taps_c is one properly,
+ * need to force Chroma to always be scaled to pass
+ * bandwidth validation.
+ */
+ if (v->override_hta_pschroma[input_idx] == 1)
+ v->override_hta_pschroma[input_idx] = 2;
+ if (v->override_vta_pschroma[input_idx] == 1)
+ v->override_vta_pschroma[input_idx] = 2;
v->source_scan[input_idx] = (pipe->plane_state->rotation % 2) ? dcn_bw_vert : dcn_bw_hor;
}
if (v->is_line_buffer_bpp_fixed == dcn_bw_yes)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
index 74e7c82bdc76..a9d55d0dd69e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
@@ -159,11 +159,10 @@ bool dpp_get_optimal_number_of_taps(
scl_data->taps.h_taps = 1;
if (IDENTITY_RATIO(scl_data->ratios.vert))
scl_data->taps.v_taps = 1;
- /*
- * Spreadsheet doesn't handle taps_c is one properly,
- * need to force Chroma to always be scaled to pass
- * bandwidth validation.
- */
+ if (IDENTITY_RATIO(scl_data->ratios.horz_c))
+ scl_data->taps.h_taps_c = 1;
+ if (IDENTITY_RATIO(scl_data->ratios.vert_c))
+ scl_data->taps.v_taps_c = 1;
}
return true;