Commit be5a55dc authored by Bhawanpreet Lakha's avatar Bhawanpreet Lakha Committed by Alex Deucher
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drm/amd/display: change when to set tap_hardcode_coeff 



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: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: default avatarTony Cheng <Tony.Cheng@amd.com>
Acked-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 8534575f

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c

+2 −2
Original line number Diff line number Diff line
@@ -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;