diff options
Diffstat (limited to 'include/dm/device.h')
| -rw-r--r-- | include/dm/device.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/dm/device.h b/include/dm/device.h index 5bdb10653f8..12c6ba37ff3 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -11,6 +11,7 @@ #define _DM_DEVICE_H #include <dm/ofnode.h> +#include <dm/tag.h> #include <dm/uclass-id.h> #include <fdtdec.h> #include <linker_lists.h> @@ -547,6 +548,30 @@ void *dev_get_parent_priv(const struct udevice *dev); void *dev_get_uclass_priv(const struct udevice *dev); /** + * dev_get_attach_ptr() - Get the value of an attached pointed tag + * + * The tag is assumed to hold a pointer, if it exists + * + * @dev: Device to look at + * @tag: Tag to access + * @return value of tag, or NULL if there is no tag of this type + */ +void *dev_get_attach_ptr(const struct udevice *dev, enum dm_tag_t tag); + +/** + * dev_get_attach_size() - Get the size of an attached tag + * + * Core tags have an automatic-allocation mechanism where the allocated size is + * defined by the device, parent or uclass. This returns the size associated + * with a particular tag + * + * @dev: Device to look at + * @tag: Tag to access + * @return size of auto-allocated data, 0 if none + */ +int dev_get_attach_size(const struct udevice *dev, enum dm_tag_t tag); + +/** * dev_get_parent() - Get the parent of a device * * @child: Child to check |