Re: [PATCH v7 00/13] leds: Add support for hardware-initiated hardware control trigger transition

[Lee Jones <lee@kernel.org>]

On Mon, 09 Nov 2026, Ilpo Järvinen wrote:

> On Mon, 21 Sep 2026 03:40:14 +0800, Rong Zhang wrote:
> 
> > Some laptops can tune their keyboard backlight according to ambient
> > light sensors (auto mode). This capability is essentially a hardware
> > control trigger. Meanwhile, such laptops also offer a shrotcut for
> > cycling through brightness levels and auto mode. For example, on
> > ThinkBook, pressing Fn+Space ("shortcut") cycles keyboard backlight
> > levels in the following sequence:
> > 
> > [...]
> 
> Thank you for your contribution, it has been applied to my local
> review-ilpo-next branch. Note it will show up in the public
> platform-drivers-x86/review-ilpo-next branch only once I've pushed my
> local branch there, which might take a while.
> 
> FYI [if applicable to your patch], as per Linus' policy change, also
> fixes are mostly routed through for-next unless the fix is for a
> commit introduced in the most recent cycle or is clearly a regression
> fix.
> 
> The list of commits applied:
> [01/13] leds: class: Always protect brightness_show() with led_access
>         (no commit info)
> [02/13] leds: trigger: Move led_trigger_is_hw_controlled() to the right place
>         (no commit info)
> [03/13] leds: class: Remove hardware control trigger when writing brightness
>         (no commit info)
> [04/13] leds: trigger: Move led_trigger_group to the right place
>         (no commit info)
> [05/13] leds: trigger: Add hw_offloaded() callback and provide trigger_may_offload_to_hw attribute
>         (no commit info)
> [06/13] leds: cros_ec: Implement hw_offloaded() trigger callback
>         (no commit info)
> [07/13] leds: turris-omnia: Implement hw_offloaded() trigger callback and declare hw_control_trigger
>         (no commit info)
> [08/13] leds: trigger: netdev: Implement hw_offloaded() callback
>         (no commit info)
> [09/13] leds: trigger: Enforce strict checks in led_trigger_is_hw_controlled()
>         (no commit info)
> [10/13] leds: trigger: Add led_trigger_notify_hw_control_changed() interface
>         (no commit info)

This is super confusing!

Where does this list come from?

> [11/13] platform/x86: ideapad-laptop: Serialize keyboard backlight tracking
>         commit: d288a6f989b7b9e6a730140c601987b886af327e
> [12/13] platform/x86: ideapad-laptop: Decouple hardware & classdev brightness for keyboard backlight
>         commit: 7d6c073d181d7855561831cb4bba17dc9b7d4aa9
> [13/13] platform/x86: ideapad-laptop: Fully support auto keyboard backlight
>         commit: 5d805ca01382d63d54c9984e7f19922c4ae6f3dc
> 
> --
>  i.
> 

-- 
Lee Jones