drm/i915: do not expose a dysfunctional backlight interface to userspace
Previously intel_panel_setup_backlight() would create a sysfs backlight
interface with max brightness of 1 if it was unable to figure out the max
backlight brightness. This rendered the backlight interface useless.
Do not create a dysfunctional backlight interface to begin with.
Signed-off-by: Jani Nikula <[email protected]>
Tested-by: David Woodhouse <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
projects / linux.git / commit