ATA_LPM_MIN_POWER
policy = ATA_LPM_MIN_POWER;
if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
if (policy == ATA_LPM_MIN_POWER)
if (policy == ATA_LPM_MIN_POWER ||
case ATA_LPM_MIN_POWER:
[ATA_LPM_MIN_POWER] = "min_power",