671 	u32 pwm_ctl, val;  in bxt_enable_backlight()  local
690 	pwm_ctl = intel_de_read(i915, BXT_BLC_PWM_CTL(panel->backlight.controller));  in bxt_enable_backlight()
691 	if (pwm_ctl & BXT_BLC_PWM_ENABLE) {  in bxt_enable_backlight()
694 		pwm_ctl &= ~BXT_BLC_PWM_ENABLE;  in bxt_enable_backlight()
696 			       pwm_ctl);  in bxt_enable_backlight()
704 	pwm_ctl = 0;  in bxt_enable_backlight()
706 		pwm_ctl |= BXT_BLC_PWM_POLARITY;  in bxt_enable_backlight()
708 	intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller), pwm_ctl);  in bxt_enable_backlight()
711 		       pwm_ctl | BXT_BLC_PWM_ENABLE);  in bxt_enable_backlight()
720 	u32 pwm_ctl;  in cnp_enable_backlight()  local
722 	pwm_ctl = intel_de_read(i915, BXT_BLC_PWM_CTL(panel->backlight.controller));  in cnp_enable_backlight()
723 	if (pwm_ctl & BXT_BLC_PWM_ENABLE) {  in cnp_enable_backlight()
725 		pwm_ctl &= ~BXT_BLC_PWM_ENABLE;  in cnp_enable_backlight()
727 			       pwm_ctl);  in cnp_enable_backlight()
735 	pwm_ctl = 0;  in cnp_enable_backlight()
737 		pwm_ctl |= BXT_BLC_PWM_POLARITY;  in cnp_enable_backlight()
739 	intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller), pwm_ctl);  in cnp_enable_backlight()
742 		       pwm_ctl | BXT_BLC_PWM_ENABLE);  in cnp_enable_backlight()
1414 	u32 pwm_ctl, val;  in bxt_setup_backlight()  local
1418 	pwm_ctl = intel_de_read(i915,  in bxt_setup_backlight()
1428 	panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;  in bxt_setup_backlight()
1440 	panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;  in bxt_setup_backlight()
1482 	u32 pwm_ctl;  in cnp_setup_backlight()  local
1496 	pwm_ctl = intel_de_read(i915,  in cnp_setup_backlight()
1499 	panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;  in cnp_setup_backlight()
1511 	panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;  in cnp_setup_backlight()