sata_phy_debounce — debounce SATA phy status
int sata_phy_debounce ( | struct ata_port * | ap, |
| const unsigned long * | params); |
apATA port to debounce SATA phy status for
paramstiming parameters { interval, duratinon, timeout } in msec
Make sure SStatus of ap reaches stable state, determined by
holding the same value where DET is not 1 for duration polled
every interval, before timeout. Timeout constraints the
beginning of the stable state. Because, after hot unplugging,
DET gets stuck at 1 on some controllers, this functions waits
until timeout then returns 0 if DET is stable at 1.