898 	u32 ctl, ctl2, freq;  in i965_enable_backlight()  local
900 	ctl2 = I915_READ(BLC_PWM_CTL2);  in i965_enable_backlight()
901 	if (ctl2 & BLM_PWM_ENABLE) {  in i965_enable_backlight()
903 		ctl2 &= ~BLM_PWM_ENABLE;  in i965_enable_backlight()
904 		I915_WRITE(BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
914 	ctl2 = BLM_PIPE(pipe);  in i965_enable_backlight()
916 		ctl2 |= BLM_COMBINATION_MODE;  in i965_enable_backlight()
918 		ctl2 |= BLM_POLARITY_I965;  in i965_enable_backlight()
919 	I915_WRITE(BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
921 	I915_WRITE(BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);  in i965_enable_backlight()
932 	u32 ctl, ctl2;  in vlv_enable_backlight()  local
937 	ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));  in vlv_enable_backlight()
938 	if (ctl2 & BLM_PWM_ENABLE) {  in vlv_enable_backlight()
940 		ctl2 &= ~BLM_PWM_ENABLE;  in vlv_enable_backlight()
941 		I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
950 	ctl2 = 0;  in vlv_enable_backlight()
952 		ctl2 |= BLM_POLARITY_I965;  in vlv_enable_backlight()
953 	I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
955 	I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);  in vlv_enable_backlight()
1243 	u32 ctl, ctl2, val;  in i965_setup_backlight()  local
1245 	ctl2 = I915_READ(BLC_PWM_CTL2);  in i965_setup_backlight()
1246 	panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;  in i965_setup_backlight()
1247 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in i965_setup_backlight()
1262 	panel->backlight.enabled = (ctl2 & BLM_PWM_ENABLE) &&  in i965_setup_backlight()
1274 	u32 ctl, ctl2, val;  in vlv_setup_backlight()  local
1291 	ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));  in vlv_setup_backlight()
1292 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in vlv_setup_backlight()
1304 	panel->backlight.enabled = (ctl2 & BLM_PWM_ENABLE) &&  in vlv_setup_backlight()