Commit b6c3053a authored by Yongqiang Sun's avatar Yongqiang Sun Committed by Alex Deucher
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drm/amd/display: Check scaling ration not viewports params. 



In case of roation, width and height in viewport is difference
between viewport and h_active and v_active, while this is not scaling.
The right way is check ratios in scaling data,
to determine it is a scaling case or not.

Signed-off-by: default avatarYongqiang Sun <yongqiang.sun@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 bf28c2e2

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c

+3 −3
Original line number Diff line number Diff line
@@ -145,10 +145,10 @@ static bool dpp_get_optimal_number_of_taps( 
		pixel_width = scl_data->viewport.width;



	/* Some ASICs does not support  FP16 scaling, so we reject modes require this*/

	if (scl_data->viewport.width  != scl_data->h_active &&

		scl_data->viewport.height != scl_data->v_active &&

	if (scl_data->format == PIXEL_FORMAT_FP16 &&

		dpp->caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT &&

		scl_data->format == PIXEL_FORMAT_FP16)

		scl_data->ratios.horz.value != dc_fixpt_one.value &&

		scl_data->ratios.vert.value != dc_fixpt_one.value)

		return false;



	if (scl_data->viewport.width > scl_data->h_active &&