943 	u32 ctl, ctl2, freq;  in i965_enable_backlight()  local
945 	ctl2 = I915_READ(BLC_PWM_CTL2);  in i965_enable_backlight()
946 	if (ctl2 & BLM_PWM_ENABLE) {  in i965_enable_backlight()
948 		ctl2 &= ~BLM_PWM_ENABLE;  in i965_enable_backlight()
949 		I915_WRITE(BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
959 	ctl2 = BLM_PIPE(pipe);  in i965_enable_backlight()
961 		ctl2 |= BLM_COMBINATION_MODE;  in i965_enable_backlight()
963 		ctl2 |= BLM_POLARITY_I965;  in i965_enable_backlight()
964 	I915_WRITE(BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
966 	I915_WRITE(BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);  in i965_enable_backlight()
978 	u32 ctl, ctl2;  in vlv_enable_backlight()  local
980 	ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));  in vlv_enable_backlight()
981 	if (ctl2 & BLM_PWM_ENABLE) {  in vlv_enable_backlight()
983 		ctl2 &= ~BLM_PWM_ENABLE;  in vlv_enable_backlight()
984 		I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
993 	ctl2 = 0;  in vlv_enable_backlight()
995 		ctl2 |= BLM_POLARITY_I965;  in vlv_enable_backlight()
996 	I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
998 	I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);  in vlv_enable_backlight()
1595 	u32 ctl, ctl2, val;  in i965_setup_backlight()  local
1597 	ctl2 = I915_READ(BLC_PWM_CTL2);  in i965_setup_backlight()
1598 	panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;  in i965_setup_backlight()
1599 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in i965_setup_backlight()
1620 	panel->backlight.enabled = ctl2 & BLM_PWM_ENABLE;  in i965_setup_backlight()
1629 	u32 ctl, ctl2, val;  in vlv_setup_backlight()  local
1634 	ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));  in vlv_setup_backlight()
1635 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in vlv_setup_backlight()
1653 	panel->backlight.enabled = ctl2 & BLM_PWM_ENABLE;  in vlv_setup_backlight()