diff options
| author | Camille Cho <camille.cho@amd.com> | 2023-11-16 11:19:25 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-01-03 18:31:52 +0300 |
| commit | ee8ed2506603629f2706712a5282921a115a8da6 (patch) | |
| tree | 7389889104824d120bb46e902a66ae336c1d3e84 /drivers/gpu/drm/amd/display/dc/hwss/dcn35 | |
| parent | aa5dc05340eb97486a631ce6bccb8d020bf6b56b (diff) | |
| download | linux-ee8ed2506603629f2706712a5282921a115a8da6.tar.xz | |
drm/amd/display: Correctly restore user_level
[Why]
BL1_PWM_USER_LEVEL is meant for the user brightness level setting from
OS. However, we update it along with other ABM levels to the real PWM
value which could be ABMed.
[How]
Driver to cache and restore the user brightness level setting so that
DMUB can retrieve the last user setting in ABM config initialization.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Anthony Koo <anthony.koo@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Camille Cho <camille.cho@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/hwss/dcn35')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c index ad710b4036de..c40f4a06abdb 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c @@ -134,6 +134,7 @@ void dcn35_init_hw(struct dc *dc) struct dc_bios *dcb = dc->ctx->dc_bios; struct resource_pool *res_pool = dc->res_pool; uint32_t backlight = MAX_BACKLIGHT_LEVEL; + uint32_t user_level = MAX_BACKLIGHT_LEVEL; int i; if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks) @@ -280,13 +281,15 @@ void dcn35_init_hw(struct dc *dc) for (i = 0; i < dc->link_count; i++) { struct dc_link *link = dc->links[i]; - if (link->panel_cntl) + if (link->panel_cntl) { backlight = link->panel_cntl->funcs->hw_init(link->panel_cntl); + user_level = link->panel_cntl->stored_backlight_registers.USER_LEVEL; + } } if (dc->ctx->dmub_srv) { for (i = 0; i < dc->res_pool->pipe_count; i++) { if (abms[i] != NULL && abms[i]->funcs != NULL) - abms[i]->funcs->abm_init(abms[i], backlight); + abms[i]->funcs->abm_init(abms[i], backlight, user_level); } } |