From: Murton Liu Date: Wed, 17 Oct 2018 18:47:45 +0000 (-0400) Subject: drm/amd/display: fix gamma not being applied correctly X-Git-Tag: v5.15~7216^2~13^2~86 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8ce504b9389be846bcdf512ed5be8f661b3bf097;p=platform%2Fkernel%2Flinux-starfive.git 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: Murton Liu Reviewed-by: Krunoslav Kovac Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- 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 a59b89b..84cfe70 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 @@ -1227,7 +1227,8 @@ static bool dcn10_set_input_transfer_func(struct pipe_ctx *pipe_ctx, tf = plane_state->in_transfer_func; 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)) dpp_base->funcs->dpp_program_input_lut(dpp_base, plane_state->gamma_correction);