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Create drivers/of/platform.c
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and populate it with the common parts from PowerPC and Sparc[64].

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
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@sfrothwell
sfrothwell committed Jul 20, 2007
1 parent b41912c commit 3f23de1
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Showing 6 changed files with 120 additions and 287 deletions.
82 changes: 1 addition & 81 deletions arch/powerpc/kernel/of_platform.c
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Original file line number Diff line number Diff line change
Expand Up @@ -55,94 +55,14 @@ static struct of_device_id of_default_bus_ids[] = {

static atomic_t bus_no_reg_magic;

/*
*
* OF platform device type definition & base infrastructure
*
*/

static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * of_drv = to_of_platform_driver(drv);
const struct of_device_id * matches = of_drv->match_table;

if (!matches)
return 0;

return of_match_device(matches, of_dev) != NULL;
}

static int of_platform_device_probe(struct device *dev)
{
int error = -ENODEV;
struct of_platform_driver *drv;
struct of_device *of_dev;
const struct of_device_id *match;

drv = to_of_platform_driver(dev->driver);
of_dev = to_of_device(dev);

if (!drv->probe)
return error;

of_dev_get(of_dev);

match = of_match_device(drv->match_table, of_dev);
if (match)
error = drv->probe(of_dev, match);
if (error)
of_dev_put(of_dev);

return error;
}

static int of_platform_device_remove(struct device *dev)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);

if (dev->driver && drv->remove)
drv->remove(of_dev);
return 0;
}

static int of_platform_device_suspend(struct device *dev, pm_message_t state)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
int error = 0;

if (dev->driver && drv->suspend)
error = drv->suspend(of_dev, state);
return error;
}

static int of_platform_device_resume(struct device * dev)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
int error = 0;

if (dev->driver && drv->resume)
error = drv->resume(of_dev);
return error;
}

struct bus_type of_platform_bus_type = {
.name = "of_platform",
.match = of_platform_bus_match,
.uevent = of_device_uevent,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
EXPORT_SYMBOL(of_platform_bus_type);

static int __init of_bus_driver_init(void)
{
return bus_register(&of_platform_bus_type);
return of_bus_type_init(&of_platform_bus_type, "of_platform");
}

postcore_initcall(of_bus_driver_init);
Expand Down
107 changes: 9 additions & 98 deletions arch/sparc/kernel/of_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5,77 +5,9 @@
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/slab.h>

#include <asm/errno.h>
#include <asm/of_device.h>

static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * of_drv = to_of_platform_driver(drv);
const struct of_device_id * matches = of_drv->match_table;

if (!matches)
return 0;

return of_match_device(matches, of_dev) != NULL;
}

static int of_platform_device_probe(struct device *dev)
{
int error = -ENODEV;
struct of_platform_driver *drv;
struct of_device *of_dev;
const struct of_device_id *match;

drv = to_of_platform_driver(dev->driver);
of_dev = to_of_device(dev);

if (!drv->probe)
return error;

of_dev_get(of_dev);

match = of_match_device(drv->match_table, of_dev);
if (match)
error = drv->probe(of_dev, match);
if (error)
of_dev_put(of_dev);

return error;
}

static int of_platform_device_remove(struct device *dev)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);

if (dev->driver && drv->remove)
drv->remove(of_dev);
return 0;
}

static int of_platform_device_suspend(struct device *dev, pm_message_t state)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
int error = 0;

if (dev->driver && drv->suspend)
error = drv->suspend(of_dev, state);
return error;
}

static int of_platform_device_resume(struct device * dev)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
int error = 0;

if (dev->driver && drv->resume)
error = drv->resume(of_dev);
return error;
}
#include <linux/errno.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>

static int node_match(struct device *dev, void *data)
{
Expand All @@ -98,37 +30,16 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
EXPORT_SYMBOL(of_find_device_by_node);

#ifdef CONFIG_PCI
struct bus_type ebus_bus_type = {
.name = "ebus",
.match = of_platform_bus_match,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
struct bus_type ebus_bus_type;
EXPORT_SYMBOL(ebus_bus_type);
#endif

#ifdef CONFIG_SBUS
struct bus_type sbus_bus_type = {
.name = "sbus",
.match = of_platform_bus_match,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
struct bus_type sbus_bus_type;
EXPORT_SYMBOL(sbus_bus_type);
#endif

struct bus_type of_platform_bus_type = {
.name = "of",
.match = of_platform_bus_match,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
struct bus_type of_platform_bus_type;
EXPORT_SYMBOL(of_platform_bus_type);

static inline u64 of_read_addr(const u32 *cell, int size)
Expand Down Expand Up @@ -639,14 +550,14 @@ static int __init of_bus_driver_init(void)
{
int err;

err = bus_register(&of_platform_bus_type);
err = of_bus_type_init(&of_platform_bus_type, "of");
#ifdef CONFIG_PCI
if (!err)
err = bus_register(&ebus_bus_type);
err = of_bus_type_init(&ebus_bus_type, "ebus");
#endif
#ifdef CONFIG_SBUS
if (!err)
err = bus_register(&sbus_bus_type);
err = of_bus_type_init(&sbus_bus_type, "sbus");
#endif

if (!err)
Expand Down
118 changes: 11 additions & 107 deletions arch/sparc64/kernel/of_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5,77 +5,9 @@
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/slab.h>

#include <asm/errno.h>
#include <asm/of_device.h>

static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * of_drv = to_of_platform_driver(drv);
const struct of_device_id * matches = of_drv->match_table;

if (!matches)
return 0;

return of_match_device(matches, of_dev) != NULL;
}

static int of_platform_device_probe(struct device *dev)
{
int error = -ENODEV;
struct of_platform_driver *drv;
struct of_device *of_dev;
const struct of_device_id *match;

drv = to_of_platform_driver(dev->driver);
of_dev = to_of_device(dev);

if (!drv->probe)
return error;

of_dev_get(of_dev);

match = of_match_device(drv->match_table, of_dev);
if (match)
error = drv->probe(of_dev, match);
if (error)
of_dev_put(of_dev);

return error;
}

static int of_platform_device_remove(struct device *dev)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);

if (dev->driver && drv->remove)
drv->remove(of_dev);
return 0;
}

static int of_platform_device_suspend(struct device *dev, pm_message_t state)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
int error = 0;

if (dev->driver && drv->suspend)
error = drv->suspend(of_dev, state);
return error;
}

static int of_platform_device_resume(struct device * dev)
{
struct of_device * of_dev = to_of_device(dev);
struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
int error = 0;

if (dev->driver && drv->resume)
error = drv->resume(of_dev);
return error;
}
#include <linux/errno.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>

void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name)
{
Expand Down Expand Up @@ -123,47 +55,19 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
EXPORT_SYMBOL(of_find_device_by_node);

#ifdef CONFIG_PCI
struct bus_type isa_bus_type = {
.name = "isa",
.match = of_platform_bus_match,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
struct bus_type isa_bus_type;
EXPORT_SYMBOL(isa_bus_type);

struct bus_type ebus_bus_type = {
.name = "ebus",
.match = of_platform_bus_match,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
struct bus_type ebus_bus_type;
EXPORT_SYMBOL(ebus_bus_type);
#endif

#ifdef CONFIG_SBUS
struct bus_type sbus_bus_type = {
.name = "sbus",
.match = of_platform_bus_match,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
struct bus_type sbus_bus_type;
EXPORT_SYMBOL(sbus_bus_type);
#endif

struct bus_type of_platform_bus_type = {
.name = "of",
.match = of_platform_bus_match,
.probe = of_platform_device_probe,
.remove = of_platform_device_remove,
.suspend = of_platform_device_suspend,
.resume = of_platform_device_resume,
};
struct bus_type of_platform_bus_type;
EXPORT_SYMBOL(of_platform_bus_type);

static inline u64 of_read_addr(const u32 *cell, int size)
Expand Down Expand Up @@ -926,16 +830,16 @@ static int __init of_bus_driver_init(void)
{
int err;

err = bus_register(&of_platform_bus_type);
err = of_bus_type_init(&of_platform_bus_type, "of");
#ifdef CONFIG_PCI
if (!err)
err = bus_register(&isa_bus_type);
err = of_bus_type_init(&isa_bus_type, "isa");
if (!err)
err = bus_register(&ebus_bus_type);
err = of_bus_type_init(&ebus_bus_type, "ebus");
#endif
#ifdef CONFIG_SBUS
if (!err)
err = bus_register(&sbus_bus_type);
err = of_bus_type_init(&sbus_bus_type, "sbus");
#endif

if (!err)
Expand Down
2 changes: 1 addition & 1 deletion drivers/of/Makefile
View file
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
obj-y = base.o
obj-$(CONFIG_OF_DEVICE) += device.o
obj-$(CONFIG_OF_DEVICE) += device.o platform.o
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