604 	u32 ctl, ctl2, freq;  in i965_enable_backlight()  local
606 	ctl2 = intel_de_read(i915, BLC_PWM_CTL2);  in i965_enable_backlight()
607 	if (ctl2 & BLM_PWM_ENABLE) {  in i965_enable_backlight()
610 		ctl2 &= ~BLM_PWM_ENABLE;  in i965_enable_backlight()
611 		intel_de_write(i915, BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
621 	ctl2 = BLM_PIPE(pipe);  in i965_enable_backlight()
623 		ctl2 |= BLM_COMBINATION_MODE;  in i965_enable_backlight()
625 		ctl2 |= BLM_POLARITY_I965;  in i965_enable_backlight()
626 	intel_de_write(i915, BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
628 	intel_de_write(i915, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);  in i965_enable_backlight()
640 	u32 ctl, ctl2;  in vlv_enable_backlight()  local
642 	ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));  in vlv_enable_backlight()
643 	if (ctl2 & BLM_PWM_ENABLE) {  in vlv_enable_backlight()
646 		ctl2 &= ~BLM_PWM_ENABLE;  in vlv_enable_backlight()
647 		intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
656 	ctl2 = 0;  in vlv_enable_backlight()
658 		ctl2 |= BLM_POLARITY_I965;  in vlv_enable_backlight()
659 	intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
661 	intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);  in vlv_enable_backlight()
1348 	u32 ctl, ctl2;  in i965_setup_backlight()  local
1350 	ctl2 = intel_de_read(i915, BLC_PWM_CTL2);  in i965_setup_backlight()
1351 	panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;  in i965_setup_backlight()
1352 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in i965_setup_backlight()
1368 	panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;  in i965_setup_backlight()
1381 	u32 ctl, ctl2;  in vlv_setup_backlight()  local
1386 	ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));  in vlv_setup_backlight()
1387 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in vlv_setup_backlight()
1400 	panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;  in vlv_setup_backlight()