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drm/amd/display: fix gamma not being applied

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[ Upstream commit 30049754ab ]

[WHY]
Previously night light forced a full update by
applying a  transfer function update regardless of if it was changed.
This logic was removed,

Now gamma surface updates are only applied when there is also a plane
info update, this does not work in cases such as using the night light
slider.

[HOW]
When moving the night light slider we will perform a full update if
the gamma has changed and there is a surface, even when the surface
has not changed. Also get stream updates in setgamma prior to
update planes and stream.

Signed-off-by: SivapiriyanKumarasamy <sivapiriyan.kumarasamy@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
SivapiriyanKumarasamy
2018-09-12 14:15:42 -04:00
committed by Greg Kroah-Hartman
parent 7657b5bd34
commit 7cb3b831fe
1 changed files with 14 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/gpu/drm/amd/display/dc/core/dc.c
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@@ -1045,9 +1045,6 @@ static enum surface_update_type get_plane_info_update_type(const struct dc_surfa
*/
update_flags->bits.bpp_change = 1;
if (u->gamma && dce_use_lut(u->plane_info->format))
update_flags->bits.gamma_change = 1;
if (memcmp(&u->plane_info->tiling_info, &u->surface->tiling_info,
sizeof(union dc_tiling_info)) != 0) {
update_flags->bits.swizzle_change = 1;
@@ -1064,7 +1061,6 @@ static enum surface_update_type get_plane_info_update_type(const struct dc_surfa
if (update_flags->bits.rotation_change
|| update_flags->bits.stereo_format_change
|| update_flags->bits.pixel_format_change
|| update_flags->bits.gamma_change
|| update_flags->bits.bpp_change
|| update_flags->bits.bandwidth_change
|| update_flags->bits.output_tf_change)
@@ -1154,13 +1150,26 @@ static enum surface_update_type det_surface_update(const struct dc *dc,
if (u->coeff_reduction_factor)
update_flags->bits.coeff_reduction_change = 1;
if (u->gamma) {
enum surface_pixel_format format = SURFACE_PIXEL_FORMAT_GRPH_BEGIN;
if (u->plane_info)
format = u->plane_info->format;
else if (u->surface)
format = u->surface->format;
if (dce_use_lut(format))
update_flags->bits.gamma_change = 1;
}
if (update_flags->bits.in_transfer_func_change) {
type = UPDATE_TYPE_MED;
elevate_update_type(&overall_type, type);
}
if (update_flags->bits.input_csc_change
|| update_flags->bits.coeff_reduction_change) {
|| update_flags->bits.coeff_reduction_change
|| update_flags->bits.gamma_change) {
type = UPDATE_TYPE_FULL;
elevate_update_type(&overall_type, type);
}