HDMI0_GC_AVMUTE
WREG32_OR(HDMI0_GC + offset, HDMI0_GC_AVMUTE);
WREG32_AND(HDMI0_GC + offset, ~HDMI0_GC_AVMUTE);
WREG32_OR(HDMI0_GC + offset, HDMI0_GC_AVMUTE);
WREG32_AND(HDMI0_GC + offset, ~HDMI0_GC_AVMUTE);