1 /* SPDX-License-Identifier: GPL-2.0 */
3  * nvmem framework provider.
6  * Copyright (C) 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
35 #define NVMEM_DEVID_NONE	(-1)
36 #define NVMEM_DEVID_AUTO	(-2)
39  * struct nvmem_keepout - NVMEM register keepout range.
52  * struct nvmem_cell_info - NVMEM cell description
54  * @offset:	Offset within the NVMEM device.
77  * struct nvmem_config - NVMEM device configuration
83  * @cells:	Optional array of pre-defined NVMEM cells.
87  * @type:	Type of the nvmem storage
88  * @read_only:	Device is read-only.
99  * @layout:	Fixed layout associated with this nvmem device.
101  * Note: A default "nvmem<id>" name will be assigned to the device if
105  * Note: Specifying name and setting id to -1 implies a unique device
106  * whose name is provided as-is (kept unaltered).
121 	struct nvmem_layout	*layout;  member
136  * struct nvmem_cell_table - NVMEM cell definitions for given provider
144  * that don't can't access the nvmem provided structure but wish to register
155  * struct nvmem_layout - NVMEM layout definitions
157  * @name:		Layout name.
159  * @add_cells:		Will be called if a nvmem device is found which
160  *			has this layout. The function will add layout
167  * A nvmem device can hold a well defined structure which can just be
169  * pairs. A nvmem layout can parse the nvmem device and add appropriate
175 	int (*add_cells)(struct device *dev, struct nvmem_device *nvmem,
176 			 struct nvmem_layout *layout);
177 	void (*fixup_cell_info)(struct nvmem_device *nvmem,
178 				struct nvmem_layout *layout,
189 void nvmem_unregister(struct nvmem_device *nvmem);
197 int nvmem_add_one_cell(struct nvmem_device *nvmem,
200 int __nvmem_layout_register(struct nvmem_layout *layout, struct module *owner);
201 #define nvmem_layout_register(layout) \  argument
202 	__nvmem_layout_register(layout, THIS_MODULE)
203 void nvmem_layout_unregister(struct nvmem_layout *layout);
205 const void *nvmem_layout_get_match_data(struct nvmem_device *nvmem,
206 					struct nvmem_layout *layout);
212 	return ERR_PTR(-EOPNOTSUPP);  in nvmem_register()
215 static inline void nvmem_unregister(struct nvmem_device *nvmem) {}  in nvmem_unregister()  argument
225 static inline int nvmem_add_one_cell(struct nvmem_device *nvmem,  in nvmem_add_one_cell()  argument
228 	return -EOPNOTSUPP;  in nvmem_add_one_cell()
231 static inline int nvmem_layout_register(struct nvmem_layout *layout)  in nvmem_layout_register()  argument
233 	return -EOPNOTSUPP;  in nvmem_layout_register()
236 static inline void nvmem_layout_unregister(struct nvmem_layout *layout) {}  in nvmem_layout_unregister()  argument
239 nvmem_layout_get_match_data(struct nvmem_device *nvmem,  in nvmem_layout_get_match_data()  argument
240 			    struct nvmem_layout *layout)  in nvmem_layout_get_match_data()  argument