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Code Issues Releases Wiki Activity

drm/amd/display: set chroma taps to 1 when not scaling

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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>
This commit is contained in:
Dmytro Laktyushkin 2017-11-13 17:03:53 -05:00 committed by Alex Deucher
parent 76121231cf
commit bce14857bd
2 changed files with 13 additions and 5 deletions
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9
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
View file

@ -897,6 +897,15 @@ 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)

9
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
View file

@ -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;