diff options
| author | Nicholas Susanto <nicholas.susanto@amd.com> | 2023-06-27 21:36:49 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-07-18 18:14:30 +0300 |
| commit | 2ad127ba4c6e188e7a83513021a638a748ceb557 (patch) | |
| tree | 50bbaa2d7620407e8f4e25aa00c6ce0aafedd879 /drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c | |
| parent | 6d435a2e861f466657535553f6ff9c71f5fe8829 (diff) | |
| download | linux-2ad127ba4c6e188e7a83513021a638a748ceb557.tar.xz | |
drm/amd/display: Cache backlight_millinits in link structure and setting brightness accordingly
[Why]
Need to save the cached backlight level so that display lights up using
appropriate brightness level instead of the default brightness when
waking up from s0i3.
[How]
Adding a backlight level cache in link structure. Also instead on
calling set_default_brightness_aux, check if cached values exists.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Nicholas Susanto <nicholas.susanto@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c index 2039a345f23a..69fdd6e142d6 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c @@ -164,6 +164,7 @@ bool edp_set_backlight_level_nits(struct dc_link *link, *(uint32_t *)&dpcd_backlight_set.backlight_level_millinits = backlight_millinits; *(uint16_t *)&dpcd_backlight_set.backlight_transition_time_ms = (uint16_t)transition_time_in_ms; + link->backlight_settings.backlight_millinits = backlight_millinits; if (!link->dpcd_caps.panel_luminance_control) { if (core_link_write_dpcd(link, DP_SOURCE_BACKLIGHT_LEVEL, @@ -276,6 +277,16 @@ bool set_default_brightness_aux(struct dc_link *link) return false; } +bool set_cached_brightness_aux(struct dc_link *link) +{ + if (link->backlight_settings.backlight_millinits) + return edp_set_backlight_level_nits(link, true, + link->backlight_settings.backlight_millinits, 0); + else + return set_default_brightness_aux(link); + return false; +} + bool edp_is_ilr_optimization_required(struct dc_link *link, struct dc_crtc_timing *crtc_timing) { |