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Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel

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This commit is contained in:
Linus Torvalds 2005-11-06 16:58:38 -08:00
commit 6adfd34e85
8 changed files with 182 additions and 123 deletions
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153
drivers/base/platform.c
View file

@ -116,12 +116,115 @@ int platform_add_devices(struct platform_device **devs, int num)
return ret;
}
struct platform_object {
struct platform_device pdev;
char name[1];
};
/**
* platform_device_register - add a platform-level device
* platform_device_put
* @pdev: platform device to free
*
* Free all memory associated with a platform device. This function
* must _only_ be externally called in error cases. All other usage
* is a bug.
*/
void platform_device_put(struct platform_device *pdev)
{
if (pdev)
put_device(&pdev->dev);
}
EXPORT_SYMBOL_GPL(platform_device_put);
static void platform_device_release(struct device *dev)
{
struct platform_object *pa = container_of(dev, struct platform_object, pdev.dev);
kfree(pa->pdev.dev.platform_data);
kfree(pa->pdev.resource);
kfree(pa);
}
/**
* platform_device_alloc
* @name: base name of the device we're adding
* @id: instance id
*
* Create a platform device object which can have other objects attached
* to it, and which will have attached objects freed when it is released.
*/
struct platform_device *platform_device_alloc(const char *name, unsigned int id)
{
struct platform_object *pa;
pa = kzalloc(sizeof(struct platform_object) + strlen(name), GFP_KERNEL);
if (pa) {
strcpy(pa->name, name);
pa->pdev.name = pa->name;
pa->pdev.id = id;
device_initialize(&pa->pdev.dev);
pa->pdev.dev.release = platform_device_release;
}
return pa ? &pa->pdev : NULL;
}
EXPORT_SYMBOL_GPL(platform_device_alloc);
/**
* platform_device_add_resources
* @pdev: platform device allocated by platform_device_alloc to add resources to
* @res: set of resources that needs to be allocated for the device
* @num: number of resources
*
* Add a copy of the resources to the platform device. The memory
* associated with the resources will be freed when the platform
* device is released.
*/
int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num)
{
struct resource *r;
r = kmalloc(sizeof(struct resource) * num, GFP_KERNEL);
if (r) {
memcpy(r, res, sizeof(struct resource) * num);
pdev->resource = r;
pdev->num_resources = num;
}
return r ? 0 : -ENOMEM;
}
EXPORT_SYMBOL_GPL(platform_device_add_resources);
/**
* platform_device_add_data
* @pdev: platform device allocated by platform_device_alloc to add resources to
* @data: platform specific data for this platform device
* @size: size of platform specific data
*
* Add a copy of platform specific data to the platform device's platform_data
* pointer. The memory associated with the platform data will be freed
* when the platform device is released.
*/
int platform_device_add_data(struct platform_device *pdev, void *data, size_t size)
{
void *d;
d = kmalloc(size, GFP_KERNEL);
if (d) {
memcpy(d, data, size);
pdev->dev.platform_data = d;
}
return d ? 0 : -ENOMEM;
}
EXPORT_SYMBOL_GPL(platform_device_add_data);
/**
* platform_device_add - add a platform device to device hierarchy
* @pdev: platform device we're adding
*
* This is part 2 of platform_device_register(), though may be called
* separately _iff_ pdev was allocated by platform_device_alloc().
*/
int platform_device_register(struct platform_device * pdev)
int platform_device_add(struct platform_device *pdev)
{
int i, ret = 0;
@ -174,6 +277,18 @@ int platform_device_register(struct platform_device * pdev)
release_resource(&pdev->resource[i]);
return ret;
}
EXPORT_SYMBOL_GPL(platform_device_add);
/**
* platform_device_register - add a platform-level device
* @pdev: platform device we're adding
*
*/
int platform_device_register(struct platform_device * pdev)
{
device_initialize(&pdev->dev);
return platform_device_add(pdev);
}
/**
* platform_device_unregister - remove a platform-level device
@ -197,18 +312,6 @@ void platform_device_unregister(struct platform_device * pdev)
}
}
struct platform_object {
struct platform_device pdev;
struct resource resources[0];
};
static void platform_device_release_simple(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
kfree(container_of(pdev, struct platform_object, pdev));
}
/**
* platform_device_register_simple
* @name: base name of the device we're adding
@ -225,33 +328,29 @@ static void platform_device_release_simple(struct device *dev)
struct platform_device *platform_device_register_simple(char *name, unsigned int id,
struct resource *res, unsigned int num)
{
struct platform_object *pobj;
struct platform_device *pdev;
int retval;
pobj = kzalloc(sizeof(*pobj) + sizeof(struct resource) * num, GFP_KERNEL);
if (!pobj) {
pdev = platform_device_alloc(name, id);
if (!pdev) {
retval = -ENOMEM;
goto error;
}
pobj->pdev.name = name;
pobj->pdev.id = id;
pobj->pdev.dev.release = platform_device_release_simple;
if (num) {
memcpy(pobj->resources, res, sizeof(struct resource) * num);
pobj->pdev.resource = pobj->resources;
pobj->pdev.num_resources = num;
retval = platform_device_add_resources(pdev, res, num);
if (retval)
goto error;
}
retval = platform_device_register(&pobj->pdev);
retval = platform_device_add(pdev);
if (retval)
goto error;
return &pobj->pdev;
return pdev;
error:
kfree(pobj);
platform_device_put(pdev);
return ERR_PTR(retval);
}

24
drivers/net/depca.c
View file

@ -1470,15 +1470,6 @@ static int __init depca_mca_probe(struct device *device)
** ISA bus I/O device probe
*/
static void depca_platform_release (struct device *device)
{
struct platform_device *pldev;
/* free device */
pldev = to_platform_device (device);
kfree (pldev);
}
static void __init depca_platform_probe (void)
{
int i;
@ -1491,19 +1482,16 @@ static void __init depca_platform_probe (void)
* line, use it (if valid) */
if (io && io != depca_io_ports[i].iobase)
continue;
if (!(pldev = kmalloc (sizeof (*pldev), GFP_KERNEL)))
pldev = platform_device_alloc(depca_string, i);
if (!pldev)
continue;
memset (pldev, 0, sizeof (*pldev));
pldev->name = depca_string;
pldev->id = i;
pldev->dev.platform_data = (void *) depca_io_ports[i].iobase;
pldev->dev.release = depca_platform_release;
depca_io_ports[i].device = pldev;
if (platform_device_register (pldev)) {
kfree (pldev);
if (platform_device_add(pldev)) {
platform_device_put(pldev);
depca_io_ports[i].device = NULL;
continue;
}
@ -1515,6 +1503,7 @@ static void __init depca_platform_probe (void)
* allocated structure */
depca_io_ports[i].device = NULL;
pldev->dev.platform_data = NULL;
platform_device_unregister (pldev);
}
}
@ -2112,6 +2101,7 @@ static void __exit depca_module_exit (void)
for (i = 0; depca_io_ports[i].iobase; i++) {
if (depca_io_ports[i].device) {
depca_io_ports[i].device->dev.platform_data = NULL;
platform_device_unregister (depca_io_ports[i].device);
depca_io_ports[i].device = NULL;
}

28
drivers/net/jazzsonic.c
View file

@ -285,18 +285,8 @@ static struct device_driver jazz_sonic_driver = {
.remove = __devexit_p(jazz_sonic_device_remove),
};
static void jazz_sonic_platform_release (struct device *device)
{
struct platform_device *pldev;
/* free device */
pldev = to_platform_device (device);
kfree (pldev);
}
static int __init jazz_sonic_init_module(void)
{
struct platform_device *pldev;
int err;
if ((err = driver_register(&jazz_sonic_driver))) {
@ -304,27 +294,19 @@ static int __init jazz_sonic_init_module(void)
return err;
}
jazz_sonic_device = NULL;
if (!(pldev = kmalloc (sizeof (*pldev), GFP_KERNEL))) {
jazz_sonic_device = platform_device_alloc(jazz_sonic_string, 0);
if (!jazz_sonnic_device)
goto out_unregister;
}
memset(pldev, 0, sizeof (*pldev));
pldev->name = jazz_sonic_string;
pldev->id = 0;
pldev->dev.release = jazz_sonic_platform_release;
jazz_sonic_device = pldev;
if (platform_device_register (pldev)) {
kfree(pldev);
if (platform_device_add(jazz_sonic_device)) {
platform_device_put(jazz_sonic_device);
jazz_sonic_device = NULL;
}
return 0;
out_unregister:
platform_device_unregister(pldev);
driver_unregister(&jazz_sonic_driver);
return -ENOMEM;
}

27
drivers/net/macsonic.c
View file

@ -599,18 +599,8 @@ static struct device_driver mac_sonic_driver = {
.remove = __devexit_p(mac_sonic_device_remove),
};
static void mac_sonic_platform_release(struct device *device)
{
struct platform_device *pldev;
/* free device */
pldev = to_platform_device (device);
kfree (pldev);
}
static int __init mac_sonic_init_module(void)
{
struct platform_device *pldev;
int err;
if ((err = driver_register(&mac_sonic_driver))) {
@ -618,27 +608,20 @@ static int __init mac_sonic_init_module(void)
return err;
}
mac_sonic_device = NULL;
if (!(pldev = kmalloc (sizeof (*pldev), GFP_KERNEL))) {
mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
if (!mac_sonic_device) {
goto out_unregister;
}
memset(pldev, 0, sizeof (*pldev));
pldev->name = mac_sonic_string;
pldev->id = 0;
pldev->dev.release = mac_sonic_platform_release;
mac_sonic_device = pldev;
if (platform_device_register (pldev)) {
kfree(pldev);
if (platform_device_add(mac_sonic_device)) {
platform_device_put(mac_sonic_device);
mac_sonic_device = NULL;
}
return 0;
out_unregister:
platform_device_unregister(pldev);
driver_unregister(&mac_sonic_driver);
return -ENOMEM;
}

25
drivers/video/arcfb.c
View file

@ -502,10 +502,6 @@ static ssize_t arcfb_write(struct file *file, const char *buf, size_t count,
return err;
}
static void arcfb_platform_release(struct device *device)
{
}
static struct fb_ops arcfb_ops = {
.owner = THIS_MODULE,
.fb_open = arcfb_open,
@ -624,13 +620,7 @@ static struct device_driver arcfb_driver = {
.remove = arcfb_remove,
};
static struct platform_device arcfb_device = {
.name = "arcfb",
.id = 0,
.dev = {
.release = arcfb_platform_release,
}
};
static struct platform_device *arcfb_device;
static int __init arcfb_init(void)
{
@ -641,9 +631,16 @@ static int __init arcfb_init(void)
ret = driver_register(&arcfb_driver);
if (!ret) {
ret = platform_device_register(&arcfb_device);
if (ret)
arcfb_device = platform_device_alloc("arcfb", 0);
if (arcfb_device) {
ret = platform_device_add(arcfb_device);
} else {
ret = -ENOMEM;
}
if (ret) {
platform_device_put(arcfb_device);
driver_unregister(&arcfb_driver);
}
}
return ret;
@ -651,7 +648,7 @@ static int __init arcfb_init(void)
static void __exit arcfb_exit(void)
{
platform_device_unregister(&arcfb_device);
platform_device_unregister(arcfb_device);
driver_unregister(&arcfb_driver);
}

18
drivers/video/gbefb.c
View file

@ -1260,24 +1260,30 @@ static struct device_driver gbefb_driver = {
.remove = __devexit_p(gbefb_remove),
};
static struct platform_device gbefb_device = {
.name = "gbefb",
};
static struct platform_device *gbefb_device;
int __init gbefb_init(void)
{
int ret = driver_register(&gbefb_driver);
if (!ret) {
ret = platform_device_register(&gbefb_device);
if (ret)
gbefb_device = platform_device_alloc("gbefb", 0);
if (gbefb_device) {
ret = platform_device_add(gbefb_device);
} else {
ret = -ENOMEM;
}
if (ret) {
platform_device_put(gbefb_device);
driver_unregister(&gbefb_driver);
}
}
return ret;
}
void __exit gbefb_exit(void)
{
driver_unregister(&gbefb_driver);
platform_device_unregister(gbefb_device);
driver_unregister(&gbefb_driver);
}
module_init(gbefb_init);

24
drivers/video/sgivwfb.c
View file

@ -751,10 +751,6 @@ int __init sgivwfb_setup(char *options)
/*
* Initialisation
*/
static void sgivwfb_release(struct device *device)
{
}
static int __init sgivwfb_probe(struct device *device)
{
struct platform_device *dev = to_platform_device(device);
@ -859,13 +855,7 @@ static struct device_driver sgivwfb_driver = {
.remove = sgivwfb_remove,
};
static struct platform_device sgivwfb_device = {
.name = "sgivwfb",
.id = 0,
.dev = {
.release = sgivwfb_release,
}
};
static struct platform_device *sgivwfb_device;
int __init sgivwfb_init(void)
{
@ -880,9 +870,15 @@ int __init sgivwfb_init(void)
#endif
ret = driver_register(&sgivwfb_driver);
if (!ret) {
ret = platform_device_register(&sgivwfb_device);
if (ret)
sgivwfb_device = platform_device_alloc("sgivwfb", 0);
if (sgivwfb_device) {
ret = platform_device_add(sgivwfb_device);
} else
ret = -ENOMEM;
if (ret) {
driver_unregister(&sgivwfb_driver);
platform_device_put(sgivwfb_device);
}
}
return ret;
}
@ -894,7 +890,7 @@ MODULE_LICENSE("GPL");
static void __exit sgivwfb_exit(void)
{
platform_device_unregister(&sgivwfb_device);
platform_device_unregister(sgivwfb_device);
driver_unregister(&sgivwfb_driver);
}

6
include/linux/platform_device.h
View file

@ -37,4 +37,10 @@ extern int platform_add_devices(struct platform_device **, int);
extern struct platform_device *platform_device_register_simple(char *, unsigned int, struct resource *, unsigned int);
extern struct platform_device *platform_device_alloc(const char *name, unsigned int id);
extern int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num);
extern int platform_device_add_data(struct platform_device *pdev, void *data, size_t size);
extern int platform_device_add(struct platform_device *pdev);
extern void platform_device_put(struct platform_device *pdev);
#endif /* _PLATFORM_DEVICE_H_ */