On Sat, Sep 7, 2024 at 2:44 PM Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
>
> The Panasonic Toughbook CF-18 advertises both native and vendor backlight
> control interfaces. But only the vendor one actually works.
>
> acpi_video_get_backlight_type() will pick the non working native backlight
> by default, add a quirk to select the working vendor backlight instead.
>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> ---
> drivers/acpi/video_detect.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> index e33ab5a2f489..68afdab5d3ab 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -254,6 +254,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
> DMI_MATCH(DMI_PRODUCT_NAME, "PCG-FRV35"),
> },
> },
> + {
> + .callback = video_detect_force_vendor,
> + /* Panasonic Toughbook CF-18 */
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "Matsushita Electric Industrial"),
> + DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
> + },
> + },
>
> /*
> * Toshiba models with Transflective display, these need to use
> --
Applied as 6.12 material, thanks!
