From 691e3d3175daff73d9b1771bf79ab032fdcec5a5 Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Fri, 9 Nov 2012 15:27:55 +0800 Subject: [SCSI] sd: update sd to use the new pm callbacks Update sd driver to use the callbacks defined in dev_pm_ops. sd_freeze is NULL, the bus level callback has taken care of quiescing the device so there should be nothing needs to be done here. Consequently, sd_thaw is not needed here either. suspend, poweroff and runtime suspend share the same routine sd_suspend, which will sync flush and then stop the drive, this is the same as before. resume, restore and runtime resume share the same routine sd_resume, which will start the drive by putting it into active power state, this is also the same as before. Signed-off-by: Aaron Lu Acked-by: Alan Stern Acked-by: Rafael J. Wysocki Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) (limited to 'drivers/scsi/sd.c') diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index b1195fd537b6..7992635d405f 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -105,7 +105,7 @@ static void sd_unlock_native_capacity(struct gendisk *disk); static int sd_probe(struct device *); static int sd_remove(struct device *); static void sd_shutdown(struct device *); -static int sd_suspend(struct device *, pm_message_t state); +static int sd_suspend(struct device *); static int sd_resume(struct device *); static void sd_rescan(struct device *); static int sd_done(struct scsi_cmnd *); @@ -465,15 +465,23 @@ static struct class sd_disk_class = { .dev_attrs = sd_disk_attrs, }; +static const struct dev_pm_ops sd_pm_ops = { + .suspend = sd_suspend, + .resume = sd_resume, + .poweroff = sd_suspend, + .restore = sd_resume, + .runtime_suspend = sd_suspend, + .runtime_resume = sd_resume, +}; + static struct scsi_driver sd_template = { .owner = THIS_MODULE, .gendrv = { .name = "sd", .probe = sd_probe, .remove = sd_remove, - .suspend = sd_suspend, - .resume = sd_resume, .shutdown = sd_shutdown, + .pm = &sd_pm_ops, }, .rescan = sd_rescan, .done = sd_done, @@ -3054,7 +3062,7 @@ exit: scsi_disk_put(sdkp); } -static int sd_suspend(struct device *dev, pm_message_t mesg) +static int sd_suspend(struct device *dev) { struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev); int ret = 0; @@ -3069,8 +3077,7 @@ static int sd_suspend(struct device *dev, pm_message_t mesg) goto done; } - if (((mesg.event & PM_EVENT_SLEEP) || PMSG_IS_AUTO(mesg)) && - sdkp->device->manage_start_stop) { + if (sdkp->device->manage_start_stop) { sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n"); ret = sd_start_stop_device(sdkp, 0); } -- cgit v1.2.3