diff options
| -rw-r--r-- | drivers/core/uclass.c | 24 | ||||
| -rw-r--r-- | include/dm/uclass-internal.h | 61 |
2 files changed, 62 insertions, 23 deletions
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index 21ab0d5245..61e96e9a42 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -186,6 +186,30 @@ int uclass_find_next_device(struct udevice **devp) return 0; } +int uclass_find_device_by_name(enum uclass_id id, const char *name, + struct udevice **devp) +{ + struct uclass *uc; + struct udevice *dev; + int ret; + + *devp = NULL; + if (!name) + return -EINVAL; + ret = uclass_get(id, &uc); + if (ret) + return ret; + + list_for_each_entry(dev, &uc->dev_head, uclass_node) { + if (!strncmp(dev->name, name, strlen(name))) { + *devp = dev; + return 0; + } + } + + return -ENODEV; +} + int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq, bool find_req_seq, struct udevice **devp) { diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h index befbae5a01..d0f1e22e58 100644 --- a/include/dm/uclass-internal.h +++ b/include/dm/uclass-internal.h @@ -46,6 +46,44 @@ int uclass_find_first_device(enum uclass_id id, struct udevice **devp); int uclass_find_next_device(struct udevice **devp); /** + * uclass_find_device_by_name() - Find uclass device based on ID and name + * + * This searches for a device with the given name. + * + * The device is NOT probed, it is merely returned. + * + * @id: ID to look up + * @name: name of a device to find + * @devp: Returns pointer to device (the first one with the name) + * @return 0 if OK, -ve on error + */ +int uclass_find_device_by_name(enum uclass_id id, const char *name, + struct udevice **devp); + +/** + * uclass_find_device_by_seq() - Find uclass device based on ID and sequence + * + * This searches for a device with the given seq or req_seq. + * + * For seq, if an active device has this sequence it will be returned. + * If there is no such device then this will return -ENODEV. + * + * For req_seq, if a device (whether activated or not) has this req_seq + * value, that device will be returned. This is a strong indication that + * the device will receive that sequence when activated. + * + * The device is NOT probed, it is merely returned. + * + * @id: ID to look up + * @seq_or_req_seq: Sequence number to find (0=first) + * @find_req_seq: true to find req_seq, false to find seq + * @devp: Returns pointer to device (there is only one per for each seq) + * @return 0 if OK, -ve on error + */ +int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq, + bool find_req_seq, struct udevice **devp); + +/** * uclass_bind_device() - Associate device with a uclass * * Connect the device into uclass's list of devices. @@ -116,27 +154,4 @@ struct uclass *uclass_find(enum uclass_id key); */ int uclass_destroy(struct uclass *uc); -/** - * uclass_find_device_by_seq() - Find uclass device based on ID and sequence - * - * This searches for a device with the given seq or req_seq. - * - * For seq, if an active device has this sequence it will be returned. - * If there is no such device then this will return -ENODEV. - * - * For req_seq, if a device (whether activated or not) has this req_seq - * value, that device will be returned. This is a strong indication that - * the device will receive that sequence when activated. - * - * The device is NOT probed, it is merely returned. - * - * @id: ID to look up - * @seq_or_req_seq: Sequence number to find (0=first) - * @find_req_seq: true to find req_seq, false to find seq - * @devp: Returns pointer to device (there is only one per for each seq) - * @return 0 if OK, -ve on error - */ -int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq, - bool find_req_seq, struct udevice **devp); - #endif |