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| author | Werner Sembach <wse@tuxedocomputers.com> | 2022-07-07 20:09:52 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-07-14 20:27:46 +0200 |
| commit | c752089f7cf5b5800c6ace4cdd1a8351ee78a598 (patch) | |
| tree | 7d6284975d496fe9d2a6c38f0bf78ef7aa5c79e8 /drivers/platform/x86/intel/atomisp2/led.c | |
| parent | 038275d227841d4978ceceb397b584b4b39f2b50 (diff) | |
ACPI: video: Force backlight native for some TongFang devices
The TongFang PF5PU1G, PF4NU1F, PF5NU1G, and PF5LUXG/TUXEDO BA15 Gen10,
Pulse 14/15 Gen1, and Pulse 15 Gen2 have the same problem as the Clevo
NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2:
They have a working native and video interface. However the default
detection mechanism first registers the video interface before
unregistering it again and switching to the native interface during boot.
This results in a dangling SBIOS request for backlight change for some
reason, causing the backlight to switch to ~2% once per boot on the first
power cord connect or disconnect event. Setting the native interface
explicitly circumvents this buggy behaviour by avoiding the unregistering
process.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/platform/x86/intel/atomisp2/led.c')
0 files changed, 0 insertions, 0 deletions