606 	u32 ctl, ctl2, freq;  in i965_enable_backlight()  local
608 	ctl2 = intel_de_read(i915, BLC_PWM_CTL2);  in i965_enable_backlight()
609 	if (ctl2 & BLM_PWM_ENABLE) {  in i965_enable_backlight()
612 		ctl2 &= ~BLM_PWM_ENABLE;  in i965_enable_backlight()
613 		intel_de_write(i915, BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
623 	ctl2 = BLM_PIPE(pipe);  in i965_enable_backlight()
625 		ctl2 |= BLM_COMBINATION_MODE;  in i965_enable_backlight()
627 		ctl2 |= BLM_POLARITY_I965;  in i965_enable_backlight()
628 	intel_de_write(i915, BLC_PWM_CTL2, ctl2);  in i965_enable_backlight()
630 	intel_de_write(i915, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);  in i965_enable_backlight()
642 	u32 ctl, ctl2;  in vlv_enable_backlight()  local
644 	ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));  in vlv_enable_backlight()
645 	if (ctl2 & BLM_PWM_ENABLE) {  in vlv_enable_backlight()
648 		ctl2 &= ~BLM_PWM_ENABLE;  in vlv_enable_backlight()
649 		intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
658 	ctl2 = 0;  in vlv_enable_backlight()
660 		ctl2 |= BLM_POLARITY_I965;  in vlv_enable_backlight()
661 	intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2);  in vlv_enable_backlight()
663 	intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);  in vlv_enable_backlight()
1350 	u32 ctl, ctl2;  in i965_setup_backlight()  local
1352 	ctl2 = intel_de_read(i915, BLC_PWM_CTL2);  in i965_setup_backlight()
1353 	panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;  in i965_setup_backlight()
1354 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in i965_setup_backlight()
1370 	panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;  in i965_setup_backlight()
1383 	u32 ctl, ctl2;  in vlv_setup_backlight()  local
1388 	ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));  in vlv_setup_backlight()
1389 	panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;  in vlv_setup_backlight()
1402 	panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;  in vlv_setup_backlight()