APPLIED [OEM-5.14] Re: [SRU] [Unstable/OEM-5.14] [PATCH 0/4] Add support for NVIDIA EC backlight

[Timo Aaltonen]

On 6.12.2021 8.34, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1953286
> 
> [Impact]
> Some system equipped with NVIDIA GFX cannot change screen brightness.
> 
> [Fix]
> Add new way to change brightness.
> 
> [Test]
> After the fix is applied, there's a new backlight sysfs
> "nvidia_wmi_ec_backlight" can change the screen brightness.
> 
> [Where problems could occur]
> The driver relies on BIOS to behave correctly. If the BIOS lies or has a
> bug, the new backlight interface will overtake other backlight
> interfaces. It's rather unlikely though.
> 
> Daniel Dadap (3):
>    platform/x86: Add driver for ACPI WMAA EC-based backlight control
>    platform/x86: Remove "WMAA" from identifier names in
>      wmaa-backlight-wmi.c
>    platform/x86: Rename wmaa-backlight-wmi to nvidia-wmi-ec-backlight
> 
> Kai-Heng Feng (1):
>    UBUNTU: [Config] NVIDIA_WMI_EC_BACKLIGHT=m
> 
>   MAINTAINERS                                   |   6 +
>   debian.master/config/annotations              |   1 +
>   debian.master/config/config.common.ubuntu     |   1 +
>   drivers/platform/x86/Kconfig                  |  15 ++
>   drivers/platform/x86/Makefile                 |   1 +
>   .../platform/x86/nvidia-wmi-ec-backlight.c    | 213 ++++++++++++++++++
>   6 files changed, 237 insertions(+)
>   create mode 100644 drivers/platform/x86/nvidia-wmi-ec-backlight.c
> 

applied to oem-5.14, thanks

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