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| author | Daniel Dadap <ddadap@nvidia.com> | 2021-09-03 02:38:39 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2021-09-14 12:26:00 +0200 |
| commit | ad62cd93198bde6644ecb5ff8f6f4c5394b5821a (patch) | |
| tree | 8b133243ce926b7761e76a40b39371a1d9d393c0 /lib/decompress_inflate.c | |
| parent | platform/x86: hp-wmi: add support for omen laptops (diff) | |
| download | linux-ad62cd93198bde6644ecb5ff8f6f4c5394b5821a.tar.xz linux-ad62cd93198bde6644ecb5ff8f6f4c5394b5821a.zip | |
platform/x86: Add driver for ACPI WMAA EC-based backlight control
A number of upcoming notebook computer designs drive the internal
display panel's backlight PWM through the Embedded Controller (EC).
This EC-based backlight control can be plumbed through to an ACPI
"WMAA" method interface, which in turn can be wrapped by WMI with
the GUID handle 603E9613-EF25-4338-A3D0-C46177516DB7.
Add a new driver, aliased to the WMAA WMI GUID, to expose a sysfs
backlight class driver to control backlight levels on systems with
EC-driven backlights.
Signed-off-by: Daniel Dadap <ddadap@nvidia.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20210903003838.15797-1-ddadap@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'lib/decompress_inflate.c')
0 files changed, 0 insertions, 0 deletions