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Commit 8ce504b9 authored by Murton Liu's avatar Murton Liu Committed by Alex Deucher
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drm/amd/display: fix gamma not being applied correctly 



[why]
Gamma was always being set as identity on SDR monitor,
leading to no changes in gamma. This caused nightlight to
not apply correctly.

[how]
Added a default gamma structure to compare against
in the sdr case.

Signed-off-by: default avatarMurton Liu <murton.liu@amd.com>
Reviewed-by: default avatarKrunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent eb6b29d6

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -1227,7 +1227,8 @@ static bool dcn10_set_input_transfer_func(struct pipe_ctx *pipe_ctx, 
		tf = plane_state->in_transfer_func;

		tf = plane_state->in_transfer_func;





	if (plane_state->gamma_correction &&

	if (plane_state->gamma_correction &&

		!plane_state->gamma_correction->is_identity

		!dpp_base->ctx->dc->debug.always_use_regamma

		&& !plane_state->gamma_correction->is_identity

			&& dce_use_lut(plane_state->format))

			&& dce_use_lut(plane_state->format))

		dpp_base->funcs->dpp_program_input_lut(dpp_base, plane_state->gamma_correction);

		dpp_base->funcs->dpp_program_input_lut(dpp_base, plane_state->gamma_correction);