Re: [PATCH] backlight: Add Congatec Board Controller (CGBC) backlight support
From: Lee Jones
Date: Tue Nov 18 2025 - 13:10:37 EST
On Tue, 18 Nov 2025, Petri Karhula via B4 Relay wrote:
> From: Petri Karhula <petri.karhula@xxxxxxxxxxx>
>
> This driver provides backlight brightness control through the Linux
> backlight subsystem. It communicates with the board controller to
> adjust LCD backlight using PWM signals. Communication is done
> through Congatec Board Controller core driver.
>
> Signed-off-by: Petri Karhula <petri.karhula@xxxxxxxxxxx>
> ---
> Backlight driver to control backlight behind Congatec Board Controller.
> This driver provides backlight brightness control through the Linux
> backlight subsystem. It communicates with the board controller to
> adjust LCD backlight using PWM signals. Communication is done
> through Congatec Board Controller core driver.
>
> ---
> drivers/mfd/cgbc-core.c | 1 +
Please separate this out into its own patch.
> drivers/video/backlight/Kconfig | 11 ++
> drivers/video/backlight/Makefile | 1 +
> drivers/video/backlight/cgbc_bl.c | 281 ++++++++++++++++++++++++++++++++++++++
> 4 files changed, 294 insertions(+)
[...]
--
Lee Jones [李琼斯]