diff options
| author | Mario Limonciello <[email protected]> | 2024-09-15 14:28:37 -0500 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-09-18 16:15:13 -0400 |
| commit | 87d749a6aab73d8069d0345afaa98297816cb220 (patch) | |
| tree | cf5684bfd368f6c15097b629252bb24bea5a91a2 | |
| parent | d5a29e6a61028887bb8480e7c4af3547d6f3862d (diff) | |
drm/amd/display: Allow backlight to go below `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT`
The issue with panel power savings compatibility below
`AMDGPU_DM_DEFAULT_MIN_BACKLIGHT` happens at
`AMDGPU_DM_DEFAULT_MIN_BACKLIGHT` as well.
That issue will be fixed separately, so don't prevent the backlight
brightness from going that low.
Cc: Harry Wentland <[email protected]>
Cc: Thomas Weißschuh <[email protected]>
Link: https://lore.kernel.org/amd-gfx/[email protected]/T/#m400dee4e2fc61fe9470334d20a7c8c89c9aef44f
Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 94c8d9966ec3..6e79028c5d78 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4506,7 +4506,7 @@ static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm, int spread = caps.max_input_signal - caps.min_input_signal; if (caps.max_input_signal > AMDGPU_DM_DEFAULT_MAX_BACKLIGHT || - caps.min_input_signal < AMDGPU_DM_DEFAULT_MIN_BACKLIGHT || + caps.min_input_signal < 0 || spread > AMDGPU_DM_DEFAULT_MAX_BACKLIGHT || spread < AMDGPU_DM_MIN_SPREAD) { DRM_DEBUG_KMS("DM: Invalid backlight caps: min=%d, max=%d\n", |