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| author | Camille Cho <camille.cho@amd.com> | 2023-11-03 12:08:42 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-29 16:49:00 -0500 |
| commit | 43b8ac4b34ec239bccf4a692c1227ef51a95a4d2 (patch) | |
| tree | 1aaeb0151cb70856c3cbd68502b46c9a581b0f05 /drivers/gpu/drm/amd/display/dc/dc_types.h | |
| parent | 37f4382b64a2b01109a0ed5c05f58d3f86385e10 (diff) | |
| download | linux-stable-43b8ac4b34ec239bccf4a692c1227ef51a95a4d2.tar.gz linux-stable-43b8ac4b34ec239bccf4a692c1227ef51a95a4d2.tar.bz2 linux-stable-43b8ac4b34ec239bccf4a692c1227ef51a95a4d2.zip | |
drm/amd/display: Simplify brightness initialization
[Why]
Remove the brightness cache in DC. It uses a single value to represent
the brightness for both SDR and HDR mode. This leads to flash in HDR
on/off. It also unconditionally programs brightness as in HDR mode. This
may introduce garbage on SDR mode in miniLED panel.
[How]
Simplify the initialization flow by removing the DC cache and taking
what panel has as default. Expand the mechanism for PWM to DPCD Aux to
restore cached brightness value generally.
Cc: stable@vger.kernel.org # 6.1+
Reviewed-by: Krunoslav Kovac <krunoslav.kovac@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@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/dc_types.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_types.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index 4a60d2c47686..a2f6c994a2a9 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -991,10 +991,6 @@ struct link_mst_stream_allocation_table { struct link_mst_stream_allocation stream_allocations[MAX_CONTROLLER_NUM]; }; -struct backlight_settings { - uint32_t backlight_millinits; -}; - /* PSR feature flags */ struct psr_settings { bool psr_feature_enabled; // PSR is supported by sink |