Messages in this thread Patch in this message | | | From | Suzuki K Poulose <> | Subject | [PATCH 12/13] drivers: Introduce variants of driver_find_device() | Date | Wed, 5 Jun 2019 16:13:49 +0100 |
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Similar to the other device lookup helpers, introduce variants of driver_find_device() to automatically lookup devices by their generic properties to avoid proliferation of custom match functions. We add :
driver_find_device_by_name driver_find_device_by_of_node driver_find_device_by_fwnode driver_find_device_by_devt driver_find_next_device
Cc: Arnd Bergmann <arnd@arndb.de> Cc: Joerg Roedel <joro@8bytes.org> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Thor Thayer <thor.thayer@linux.intel.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- include/linux/device.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+)
diff --git a/include/linux/device.h b/include/linux/device.h index 10de79d..2c05e60 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -404,6 +404,64 @@ struct device *driver_find_device(struct device_driver *drv, struct device *start, const void *data, int (*match)(struct device *dev, const void *data)); +/** + * driver_find_device_by_name - device iterator for locating a particular device + * of a specific name. + * @driver: the driver we're iterating + * @name: name of the device to match + */ +static inline struct device *driver_find_device_by_name(struct device_driver *drv, + const char *name) +{ + return driver_find_device(drv, NULL, name, device_match_name); +} + +/** + * driver_find_device_by_of_node- device iterator for locating a particular device + * by of_node pointer. + * @driver: the driver we're iterating + * @np: of_node pointer to match. + */ +static inline struct device * +driver_find_device_by_of_node(struct device_driver *drv, + const struct device_node *np) +{ + return driver_find_device(drv, NULL, np, device_match_of_node); +} + +/** + * driver_find_device_by_fwnode- device iterator for locating a particular device + * by fwnode pointer. + * @driver: the driver we're iterating + * @fwnode: fwnode pointer to match. + */ +static inline struct device * +driver_find_device_by_fwnode(struct device_driver *drv, + const struct fwnode_handle *fwnode) +{ + return driver_find_device(drv, NULL, fwnode, device_match_fwnode); +} + +/** + * driver_find_device_by_devt- device iterator for locating a particular device + * by devt. + * @driver: the driver we're iterating + * @start: device to start search from + * @devt: devt pointer to match. + */ +static inline struct device *driver_find_device_by_devt(struct device_driver *drv, + struct device *start, + dev_t devt) +{ + return driver_find_device(drv, start, &devt, device_match_devt); +} + +static inline struct device *driver_find_next_device(struct device_driver *drv, + struct device *start) +{ + return driver_find_device(drv, start, NULL, device_match_any); +} + void driver_deferred_probe_add(struct device *dev); int driver_deferred_probe_check_state(struct device *dev); -- 2.7.4
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