diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2024-09-15 22:28:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-10 13:04:14 +0300 |
| commit | cdbe306d87f725aebea2944b79b2e88f6d57997f (patch) | |
| tree | cfc66a1e4116da61e23a3dfcb6486fd0c735bb52 | |
| parent | 9be6f9fc140c97e3f5c0d6ce0dc38570b482efb5 (diff) | |
| download | linux-cdbe306d87f725aebea2944b79b2e88f6d57997f.tar.xz | |
drm/amd/display: Allow backlight to go below `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT`
[ Upstream commit 87d749a6aab73d8069d0345afaa98297816cb220 ]
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 <harry.wentland@amd.com>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/amd-gfx/be04226a-a9e3-4a45-a83b-6d263c6557d8@t-8ch.de/T/#m400dee4e2fc61fe9470334d20a7c8c89c9aef44f
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 ccb1883a67ff..1ab7cd8a6b6a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4485,7 +4485,7 @@ 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", |