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drm/amd/display: change when to set tap_hardcode_coeff

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Set hardcode_coeff only when BOTH chroma and luma taps are
more than 1

without this underscan with h or v set to 0 darkens
the screen (either h or v set to 0, not both)

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@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:
Bhawanpreet Lakha
2017-10-05 13:32:29 -04:00
committed by Alex Deucher
parent 8534575fed
commit be5a55dc3d
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
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@@ -306,10 +306,10 @@ static void dpp_set_scl_filter(
h_2tap_hardcode_coef_en = scl_data->taps.h_taps < 3
&& scl_data->taps.h_taps_c < 3
&& (scl_data->taps.h_taps > 1 || scl_data->taps.h_taps_c > 1);
&& (scl_data->taps.h_taps > 1 && scl_data->taps.h_taps_c > 1);
v_2tap_hardcode_coef_en = scl_data->taps.v_taps < 3
&& scl_data->taps.v_taps_c < 3
&& (scl_data->taps.v_taps > 1 || scl_data->taps.v_taps_c > 1);
&& (scl_data->taps.v_taps > 1 && scl_data->taps.v_taps_c > 1);
h_2tap_sharp_en = h_2tap_hardcode_coef_en && h_2tap_sharp_factor != 0;
v_2tap_sharp_en = v_2tap_hardcode_coef_en && v_2tap_sharp_factor != 0;