AMP_CAP_STEP_SIZE
AMP_CAP_STEP_SIZE(capabilities),
control.mix_control.gain.granularity = AMP_CAP_STEP_SIZE(capabilities);
* AMP_CAP_STEP_SIZE(control->capabilities);
/ AMP_CAP_STEP_SIZE(control->capabilities)
/ AMP_CAP_STEP_SIZE(control2->capabilities)