From 9c80a82c037ae0cf2183102f00166a82fe45849d Mon Sep 17 00:00:00 2001 From: John Barberiz Date: Thu, 18 Jan 2018 12:22:11 -0500 Subject: [PATCH 3492/4131] drm/amd/display: Bypass gamma set if not standard type If non-standard gamma type detected set identity matrix flag so that we can bypass the gamma mode. Signed-off-by: John Barberiz Reviewed-by: Krunoslav Kovac Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dc_hw_types.h | 2 ++ drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h index 1110408..e91ac68 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h @@ -436,6 +436,8 @@ struct dc_gamma { /* private to DC core */ struct dc_context *ctx; + + bool is_identity; }; /* Used by both ipp amd opp functions*/ diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index f261c7c..8ce9a4e 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -900,7 +900,9 @@ static bool dcn10_set_input_transfer_func(struct pipe_ctx *pipe_ctx, if (plane_state->in_transfer_func) tf = plane_state->in_transfer_func; - if (plane_state->gamma_correction && dce_use_lut(plane_state->format)) + if (plane_state->gamma_correction->is_identity) + dpp_base->funcs->dpp_set_degamma(dpp_base, IPP_DEGAMMA_MODE_BYPASS); + else if (plane_state->gamma_correction && dce_use_lut(plane_state->format)) dpp_base->funcs->dpp_program_input_lut(dpp_base, plane_state->gamma_correction); if (tf == NULL) -- 2.7.4