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drivercore/dt: add a match table pointer to struct device

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Add a new .of_match field to struct device which points at the
matching device driver .of_match_table entry when a device is probed
via the device tree

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Grant Likely 2011-02-17 02:37:15 -07:00
parent 3d6b882827
commit b826291c14
2 changed files with 4 additions and 2 deletions
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1
include/linux/device.h
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@ -441,6 +441,7 @@ struct device {
struct dev_archdata archdata; struct dev_archdata archdata;
struct device_node *of_node; /* associated device tree node */ struct device_node *of_node; /* associated device tree node */
const struct of_device_id *of_match; /* matching of_device_id from driver */
dev_t devt; /* dev_t, creates the sysfs "dev" */ dev_t devt; /* dev_t, creates the sysfs "dev" */

5
include/linux/of_device.h
View file

@ -18,10 +18,11 @@ extern void of_device_make_bus_id(struct device *dev);
* @drv: the device_driver structure to test * @drv: the device_driver structure to test
* @dev: the device structure to match against * @dev: the device structure to match against
*/ */
static inline int of_driver_match_device(const struct device *dev, static inline int of_driver_match_device(struct device *dev,
const struct device_driver *drv) const struct device_driver *drv)
{ {
return of_match_device(drv->of_match_table, dev) != NULL; dev->of_match = of_match_device(drv->of_match_table, dev);
return dev->of_match != NULL;
} }
extern struct platform_device *of_dev_get(struct platform_device *dev); extern struct platform_device *of_dev_get(struct platform_device *dev);