SPEAKER_ALLOCATION_MASK
tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);