sata_phy_debounce — debounce SATA phy status
int sata_phy_debounce ( | struct ata_port * ap, |
const unsigned long * params) ; |
ap
ATA port to debounce SATA phy status for
params
timing 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.