Commit 8bbace7e authored by Cornelia Huck's avatar Cornelia Huck Committed by Greg Kroah-Hartman
Browse files

[PATCH] Add {css,ccw}_bus_type probe, remove, shutdown methods.



The following patch converts css_bus_type and ccw_bus_type to use
the new bus_type methods.
Signed-off-by: default avatarCornelia Huck <huckc@de.ibm.com>
CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 348290a4
......@@ -542,9 +542,41 @@ css_bus_match (struct device *dev, struct device_driver *drv)
return 0;
}
static int
css_probe (struct device *dev)
{
struct subchannel *sch;
sch = to_subchannel(dev);
sch->driver = container_of (dev->driver, struct css_driver, drv);
return (sch->driver->probe ? sch->driver->probe(sch) : 0);
}
static int
css_remove (struct device *dev)
{
struct subchannel *sch;
sch = to_subchannel(dev);
return (sch->driver->remove ? sch->driver->remove(sch) : 0);
}
static void
css_shutdown (struct device *dev)
{
struct subchannel *sch;
sch = to_subchannel(dev);
if (sch->driver->shutdown)
sch->driver->shutdown(sch);
}
struct bus_type css_bus_type = {
.name = "css",
.match = &css_bus_match,
.match = css_bus_match,
.probe = css_probe,
.remove = css_remove,
.shutdown = css_shutdown,
};
subsys_initcall(init_channel_subsystem);
......
......@@ -115,6 +115,7 @@ struct ccw_device_private {
* Currently, we only care about I/O subchannels (type 0), these
* have a ccw_device connected to them.
*/
struct subchannel;
struct css_driver {
unsigned int subchannel_type;
struct device_driver drv;
......@@ -122,6 +123,9 @@ struct css_driver {
int (*notify)(struct device *, int);
void (*verify)(struct device *);
void (*termination)(struct device *);
int (*probe)(struct subchannel *);
int (*remove)(struct subchannel *);
void (*shutdown)(struct subchannel *);
};
/*
......
......@@ -107,33 +107,29 @@ ccw_uevent (struct device *dev, char **envp, int num_envp,
return 0;
}
struct bus_type ccw_bus_type = {
.name = "ccw",
.match = &ccw_bus_match,
.uevent = &ccw_uevent,
};
struct bus_type ccw_bus_type;
static int io_subchannel_probe (struct device *);
static int io_subchannel_remove (struct device *);
static int io_subchannel_probe (struct subchannel *);
static int io_subchannel_remove (struct subchannel *);
void io_subchannel_irq (struct device *);
static int io_subchannel_notify(struct device *, int);
static void io_subchannel_verify(struct device *);
static void io_subchannel_ioterm(struct device *);
static void io_subchannel_shutdown(struct device *);
static void io_subchannel_shutdown(struct subchannel *);
struct css_driver io_subchannel_driver = {
.subchannel_type = SUBCHANNEL_TYPE_IO,
.drv = {
.name = "io_subchannel",
.bus = &css_bus_type,
.probe = &io_subchannel_probe,
.remove = &io_subchannel_remove,
.shutdown = &io_subchannel_shutdown,
},
.irq = io_subchannel_irq,
.notify = io_subchannel_notify,
.verify = io_subchannel_verify,
.termination = io_subchannel_ioterm,
.probe = io_subchannel_probe,
.remove = io_subchannel_remove,
.shutdown = io_subchannel_shutdown,
};
struct workqueue_struct *ccw_device_work;
......@@ -803,14 +799,12 @@ io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
}
static int
io_subchannel_probe (struct device *pdev)
io_subchannel_probe (struct subchannel *sch)
{
struct subchannel *sch;
struct ccw_device *cdev;
int rc;
unsigned long flags;
sch = to_subchannel(pdev);
if (sch->dev.driver_data) {
/*
* This subchannel already has an associated ccw_device.
......@@ -846,7 +840,7 @@ io_subchannel_probe (struct device *pdev)
memset(cdev->private, 0, sizeof(struct ccw_device_private));
atomic_set(&cdev->private->onoff, 0);
cdev->dev = (struct device) {
.parent = pdev,
.parent = &sch->dev,
.release = ccw_device_release,
};
INIT_LIST_HEAD(&cdev->private->kick_work.entry);
......@@ -859,7 +853,7 @@ io_subchannel_probe (struct device *pdev)
return -ENODEV;
}
rc = io_subchannel_recog(cdev, to_subchannel(pdev));
rc = io_subchannel_recog(cdev, sch);
if (rc) {
spin_lock_irqsave(&sch->lock, flags);
sch->dev.driver_data = NULL;
......@@ -883,17 +877,17 @@ ccw_device_unregister(void *data)
}
static int
io_subchannel_remove (struct device *dev)
io_subchannel_remove (struct subchannel *sch)
{
struct ccw_device *cdev;
unsigned long flags;
if (!dev->driver_data)
if (!sch->dev.driver_data)
return 0;
cdev = dev->driver_data;
cdev = sch->dev.driver_data;
/* Set ccw device to not operational and drop reference. */
spin_lock_irqsave(cdev->ccwlock, flags);
dev->driver_data = NULL;
sch->dev.driver_data = NULL;
cdev->private->state = DEV_STATE_NOT_OPER;
spin_unlock_irqrestore(cdev->ccwlock, flags);
/*
......@@ -948,14 +942,12 @@ io_subchannel_ioterm(struct device *dev)
}
static void
io_subchannel_shutdown(struct device *dev)
io_subchannel_shutdown(struct subchannel *sch)
{
struct subchannel *sch;
struct ccw_device *cdev;
int ret;
sch = to_subchannel(dev);
cdev = dev->driver_data;
cdev = sch->dev.driver_data;
if (cio_is_console(sch->schid))
return;
......@@ -1129,6 +1121,14 @@ ccw_device_remove (struct device *dev)
return 0;
}
struct bus_type ccw_bus_type = {
.name = "ccw",
.match = ccw_bus_match,
.uevent = ccw_uevent,
.probe = ccw_device_probe,
.remove = ccw_device_remove,
};
int
ccw_driver_register (struct ccw_driver *cdriver)
{
......@@ -1136,8 +1136,6 @@ ccw_driver_register (struct ccw_driver *cdriver)
drv->bus = &ccw_bus_type;
drv->name = cdriver->name;
drv->probe = ccw_device_probe;
drv->remove = ccw_device_remove;
return driver_register(drv);
}
......
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