618 	u32 ctl, ctl2, freq;  in i965_enable_backlight()  local
620 	ctl2 = intel_de_read(display, BLC_PWM_CTL2);  in i965_enable_backlight()
621 	if (ctl2 & BLM_PWM_ENABLE) {  in i965_enable_backlight()
625 		ctl2 &= ~BLM_PWM_ENABLE;  in i965_enable_backlight()
626 		intel_de_write(display, BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
636 	ctl2 = BLM_PIPE(pipe);  in i965_enable_backlight()
638 		ctl2 |= BLM_COMBINATION_MODE;  in i965_enable_backlight()
640 		ctl2 |= BLM_POLARITY_I965;  in i965_enable_backlight()
641 	intel_de_write(display, BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
643 	intel_de_write(display, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);  in i965_enable_backlight()
655 	u32 ctl, ctl2;  in vlv_enable_backlight()  local
657 	ctl2 = intel_de_read(display, VLV_BLC_PWM_CTL2(pipe));  in vlv_enable_backlight()
658 	if (ctl2 & BLM_PWM_ENABLE) {  in vlv_enable_backlight()
662 		ctl2 &= ~BLM_PWM_ENABLE;  in vlv_enable_backlight()
663 		intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
672 	ctl2 = 0;  in vlv_enable_backlight()
674 		ctl2 |= BLM_POLARITY_I965;  in vlv_enable_backlight()
675 	intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
677 	intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);  in vlv_enable_backlight()
1367 	u32 ctl, ctl2;  in i965_setup_backlight()  local
1369 	ctl2 = intel_de_read(display, BLC_PWM_CTL2);  in i965_setup_backlight()
1370 	panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;  in i965_setup_backlight()
1371 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in i965_setup_backlight()
1387 	panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;  in i965_setup_backlight()
1400 	u32 ctl, ctl2;  in vlv_setup_backlight()  local
1405 	ctl2 = intel_de_read(display, VLV_BLC_PWM_CTL2(pipe));  in vlv_setup_backlight()
1406 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in vlv_setup_backlight()
1419 	panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;  in vlv_setup_backlight()