815 	u32 cpu_ctl2, pch_ctl1, pch_ctl2;  in pch_enable_backlight()  local
817 	cpu_ctl2 = I915_READ(BLC_PWM_CPU_CTL2);  in pch_enable_backlight()
818 	if (cpu_ctl2 & BLM_PWM_ENABLE) {  in pch_enable_backlight()
820 		cpu_ctl2 &= ~BLM_PWM_ENABLE;  in pch_enable_backlight()
821 		I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2);  in pch_enable_backlight()
832 		cpu_ctl2 = BLM_TRANSCODER_EDP;  in pch_enable_backlight()
834 		cpu_ctl2 = BLM_PIPE(cpu_transcoder);  in pch_enable_backlight()
835 	I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2);  in pch_enable_backlight()
837 	I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);  in pch_enable_backlight()
1184 	u32 cpu_ctl2, pch_ctl1, pch_ctl2, val;  in pch_setup_backlight()  local
1199 	cpu_ctl2 = I915_READ(BLC_PWM_CPU_CTL2);  in pch_setup_backlight()
1200 	panel->backlight.enabled = (cpu_ctl2 & BLM_PWM_ENABLE) &&  in pch_setup_backlight()