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[06/14] ACPI: video: Drop backlight_device_get_by_type() call from acpi_video_get_backlight_type()

Message ID 20220517152331.16217-7-hdegoede@redhat.com (mailing list archive)
State New, archived
Headers show
Series drm/kms: Stop registering multiple /sys/class/backlight devs for a single display | expand

Commit Message

Hans de Goede May 17, 2022, 3:23 p.m. UTC
Now that all kms drivers which register native/BACKLIGHT_RAW type backlight
devices on x86/ACPI boards call acpi_video_get_backlight_type(true), with
the native=true value getting cached, there no longer is a need to call
backlight_device_get_by_type(BACKLIGHT_RAW) to see if a native backlight
device is available.

Relying on the cached native_available value not only is simpler, it will
also work correctly in cases where then native backlight registration was
skipped because of the acpi_video_get_backlight_type() return value.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
 drivers/acpi/video_detect.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 0a06f0edd298..6caabdf189c9 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -586,8 +586,7 @@  enum acpi_backlight_type acpi_video_get_backlight_type(bool native)
 	if (!(video_caps & ACPI_VIDEO_BACKLIGHT))
 		return acpi_backlight_vendor;
-	if (acpi_osi_is_win8() &&
-	    (native_available || backlight_device_get_by_type(BACKLIGHT_RAW)))
+	if (acpi_osi_is_win8() && native_available)
 		return acpi_backlight_native;
 	return acpi_backlight_video;