diff options
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 15842b1f0f4..ea7f3a43357 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -263,9 +263,40 @@ static int scsi_bus_match(struct device *dev, struct device_driver *gendrv) return (sdp->inq_periph_qual == SCSI_INQ_PQ_CON)? 1: 0; } +static int scsi_bus_suspend(struct device * dev, pm_message_t state) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct scsi_host_template *sht = sdev->host->hostt; + int err; + + err = scsi_device_quiesce(sdev); + if (err) + return err; + + if (sht->suspend) + err = sht->suspend(sdev); + + return err; +} + +static int scsi_bus_resume(struct device * dev) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct scsi_host_template *sht = sdev->host->hostt; + int err = 0; + + if (sht->resume) + err = sht->resume(sdev); + + scsi_device_resume(sdev); + return err; +} + struct bus_type scsi_bus_type = { .name = "scsi", .match = scsi_bus_match, + .suspend = scsi_bus_suspend, + .resume = scsi_bus_resume, }; int scsi_sysfs_register(void) |