BACKLIGHT_DUTY_CYCLE_MASK
return intel_de_read(display, BLC_PWM_PCH_CTL2) & BACKLIGHT_DUTY_CYCLE_MASK;
return intel_de_read(display, BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
val = intel_de_read(display, BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
return intel_de_read(display, VLV_BLC_PWM_CTL(pipe)) & BACKLIGHT_DUTY_CYCLE_MASK;
val = intel_de_read(display, BLC_PWM_PCH_CTL2) & ~BACKLIGHT_DUTY_CYCLE_MASK;
tmp = intel_de_read(display, BLC_PWM_CPU_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
mask = BACKLIGHT_DUTY_CYCLE_MASK;
tmp = intel_de_read(display, VLV_BLC_PWM_CTL(pipe)) & ~BACKLIGHT_DUTY_CYCLE_MASK;