APPLIED[K/U]: [SRU][K/OEM-6.0/U][PATCH 0/3] Fix oled brightness set above frame-average luminance

[Andrea Righi]

On Mon, Oct 10, 2022 at 01:44:49PM +0800, Aaron Ma wrote:
> BugLink: https://bugs.launchpad.net/bugs/1978986
> 
> [Impact]
> The brightness is not changed obviously during 200 to 255 on AMD
> or 400 to 512 on Intel.
> 
> [Fix]
> Read HDR meta to detect the max and min luminance.
> max_cll defines the content light luminance for individual pixel.
> max_fall defines frame-average level luminance.
> Use max_fall value instead of max_cll as a limit for brightness control.
> 
> [Test]
> Verified on AMD Cezanne, Barcelo, Rembrandt and Intel ADL, also on LCD
> panel and
> OLED panel. The brightness is changed more obivously on OLED panel, and
> no affect on LCD panel.
> 
> [Where problems could occur]
> Low risk, It may cause the max brightness can't be set.
> 
> All 3 patches are already SRUed for J/OEM-5.17,
> this SRU is for K/OEM-6.0/U.
> Pathes for OEM-5.17 are the same as K, OEM-5.17 doesn't apply them
> yet, in case the patches of no SAUCE tag are perferred.

Applied to kinetic/linux and kinetic/linux-unstable.

Thanks,
-Andrea