OF-style matching can be available to any device, on any type of bus. This patch allows any driver to provide an OF match table when CONFIG_OF is enabled so that drivers can be bound against devices described in the device tree.
Signed-off-by: Grant Likely grant.likely@secretlab.ca Acked-by: Greg Kroah-Hartman gregkh@suse.de ---
arch/powerpc/kernel/ibmebus.c | 2 +- drivers/macintosh/macio_asic.c | 5 ++--- drivers/of/platform.c | 7 ++++--- include/linux/device.h | 4 ++++ 4 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index 797e9ac..62ded8b 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -201,7 +201,7 @@ static int ibmebus_create_devices(const struct of_device_id *matches) int ibmebus_register_driver(struct of_platform_driver *drv) { /* If the driver uses devices that ibmebus doesn't know, add them */ - ibmebus_create_devices(drv->match_table); + ibmebus_create_devices(drv->driver.of_match_table);
return of_register_driver(drv, &ibmebus_bus_type); } diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 48a5f04..e3ba1d8 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -40,8 +40,7 @@ static struct macio_chip *macio_on_hold; static int macio_bus_match(struct device *dev, struct device_driver *drv) { struct macio_dev * macio_dev = to_macio_device(dev); - struct macio_driver * macio_drv = to_macio_driver(drv); - const struct of_device_id * matches = macio_drv->match_table; + const struct of_device_id * matches = drv->of_match_table;
if (!matches) return 0; @@ -84,7 +83,7 @@ static int macio_device_probe(struct device *dev)
macio_dev_get(macio_dev);
- match = of_match_device(drv->match_table, &macio_dev->ofdev); + match = of_match_device(drv->driver.of_match_table, &macio_dev->ofdev); if (match) error = drv->probe(macio_dev, match); if (error) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index d58ade1..9fd7f7d 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -22,8 +22,7 @@ extern struct device_attribute of_platform_device_attrs[]; 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; + const struct of_device_id *matches = drv->of_match_table;
if (!matches) return 0; @@ -46,7 +45,7 @@ static int of_platform_device_probe(struct device *dev)
of_dev_get(of_dev);
- match = of_match_device(drv->match_table, of_dev); + match = of_match_device(drv->driver.of_match_table, of_dev); if (match) error = drv->probe(of_dev, match); if (error) @@ -391,6 +390,8 @@ int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus) drv->driver.name = drv->name; if (!drv->driver.owner) drv->driver.owner = drv->owner; + if (!drv->driver.of_match_table) + drv->driver.of_match_table = drv->match_table; drv->driver.bus = bus;
/* register with core */ diff --git a/include/linux/device.h b/include/linux/device.h index 7a968bd..cd7534c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -129,6 +129,10 @@ struct device_driver {
bool suppress_bind_attrs; /* disables bind/unbind via sysfs */
+#if defined(CONFIG_OF) + const struct of_device_id *of_match_table; +#endif + int (*probe) (struct device *dev); int (*remove) (struct device *dev); void (*shutdown) (struct device *dev);