BACKLIGHT_DUTY_CYCLE_MASK_PNV 643 drivers/gpu/drm/i915/display/intel_panel.c mask = BACKLIGHT_DUTY_CYCLE_MASK_PNV; BACKLIGHT_DUTY_CYCLE_MASK_PNV 979 drivers/gpu/drm/i915/display/intel_panel.c if (ctl & BACKLIGHT_DUTY_CYCLE_MASK_PNV) {