From: Hans de Goede hdegoede@redhat.com
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 --- drivers/acpi/video_detect.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 1b78c7434492..8a541efc5675 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; }