985 	u32 ctl, ctl2, freq;  in i965_enable_backlight()  local
987 	ctl2 = I915_READ(BLC_PWM_CTL2);  in i965_enable_backlight()
988 	if (ctl2 & BLM_PWM_ENABLE) {  in i965_enable_backlight()
990 		ctl2 &= ~BLM_PWM_ENABLE;  in i965_enable_backlight()
991 		I915_WRITE(BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
1001 	ctl2 = BLM_PIPE(pipe);  in i965_enable_backlight()
1003 		ctl2 |= BLM_COMBINATION_MODE;  in i965_enable_backlight()
1005 		ctl2 |= BLM_POLARITY_I965;  in i965_enable_backlight()
1006 	I915_WRITE(BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
1008 	I915_WRITE(BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);  in i965_enable_backlight()
1019 	u32 ctl, ctl2;  in vlv_enable_backlight()  local
1024 	ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));  in vlv_enable_backlight()
1025 	if (ctl2 & BLM_PWM_ENABLE) {  in vlv_enable_backlight()
1027 		ctl2 &= ~BLM_PWM_ENABLE;  in vlv_enable_backlight()
1028 		I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
1037 	ctl2 = 0;  in vlv_enable_backlight()
1039 		ctl2 |= BLM_POLARITY_I965;  in vlv_enable_backlight()
1040 	I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
1042 	I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);  in vlv_enable_backlight()
1542 	u32 ctl, ctl2, val;  in i965_setup_backlight()  local
1544 	ctl2 = I915_READ(BLC_PWM_CTL2);  in i965_setup_backlight()
1545 	panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;  in i965_setup_backlight()
1546 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in i965_setup_backlight()
1565 	panel->backlight.enabled = (ctl2 & BLM_PWM_ENABLE) &&  in i965_setup_backlight()
1576 	u32 ctl, ctl2, val;  in vlv_setup_backlight()  local
1581 	ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));  in vlv_setup_backlight()
1582 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in vlv_setup_backlight()
1598 	panel->backlight.enabled = (ctl2 & BLM_PWM_ENABLE) &&  in vlv_setup_backlight()