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| author | Hans de Goede <hdegoede@redhat.com> | 2023-01-09 22:18:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-18 13:58:15 +0300 |
| commit | 1f4a9408024e268fe0519bfa3d2ed8c86ab1d4a4 (patch) | |
| tree | c869c1fbc0d5b886ca4fe171b402987328821ced /drivers/acpi | |
| parent | 462ed8a2bebae3d7a039187d8d7a06094a43ff2e (diff) | |
| download | linux-1f4a9408024e268fe0519bfa3d2ed8c86ab1d4a4.tar.xz | |
ACPI: video: Allow selecting NVidia-WMI-EC or Apple GMUX backlight from the cmdline
commit 420a1116aef0e8e12c305508f45ce73e5ae30a09 upstream.
The patches adding NVidia-WMI-EC and Apple GMUX backlight detection
support to acpi_video_get_backlight_type(), forgot to update
acpi_video_parse_cmdline() to allow manually selecting these from
the commandline.
Add support for these to acpi_video_parse_cmdline().
Fixes: fe7aebb40d42 ("ACPI: video: Add Nvidia WMI EC brightness control detection (v3)")
Fixes: 21245df307cb ("ACPI: video: Add Apple GMUX brightness control detection")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/video_detect.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 76b7e7f8894e..1db8e68cd8bc 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -50,6 +50,10 @@ static void acpi_video_parse_cmdline(void) acpi_backlight_cmdline = acpi_backlight_video; if (!strcmp("native", acpi_video_backlight_string)) acpi_backlight_cmdline = acpi_backlight_native; + if (!strcmp("nvidia_wmi_ec", acpi_video_backlight_string)) + acpi_backlight_cmdline = acpi_backlight_nvidia_wmi_ec; + if (!strcmp("apple_gmux", acpi_video_backlight_string)) + acpi_backlight_cmdline = acpi_backlight_apple_gmux; if (!strcmp("none", acpi_video_backlight_string)) acpi_backlight_cmdline = acpi_backlight_none; } |