From: Bhawanpreet Lakha Date: Thu, 5 Oct 2017 13:32:29 -0400 Subject: drm/amd/display: change when to set tap_hardcode_coeff Git-commit: be5a55dc3de9bc5764b3eb4ba6f743783584aa58 Patch-mainline: v4.15-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 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 Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c @@ -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;