drivers/nvmem/internals.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2
   3 #ifndef _LINUX_NVMEM_INTERNALS_H
   4 #define _LINUX_NVMEM_INTERNALS_H
   5
   6 #include <linux/device.h>
   7 #include <linux/nvmem-consumer.h>
   8 #include <linux/nvmem-provider.h>
   9
  10 struct nvmem_device {
  11         struct module           *owner;
  12         struct device           dev;
  13         struct list_head        node;
  14         int                     stride;
  15         int                     word_size;
  16         int                     id;
  17         struct kref             refcnt;
  18         size_t                  size;
  19         bool                    read_only;
  20         bool                    root_only;
  21         int                     flags;
  22         enum nvmem_type         type;
  23         struct bin_attribute    eeprom;
  24         struct device           *base_dev;
  25         struct list_head        cells;
  26         void (*fixup_dt_cell_info)(struct nvmem_device *nvmem,
  27                                    struct nvmem_cell_info *cell);
  28         const struct nvmem_keepout *keepout;
  29         unsigned int            nkeepout;
  30         nvmem_reg_read_t        reg_read;
  31         nvmem_reg_write_t       reg_write;
  32         struct gpio_desc        *wp_gpio;
  33         struct nvmem_layout     *layout;
  34         void *priv;
  35         bool                    sysfs_cells_populated;
  36 };
  37
  38 #if IS_ENABLED(CONFIG_OF)
  39 int nvmem_layout_bus_register(void);
  40 void nvmem_layout_bus_unregister(void);
  41 int nvmem_populate_layout(struct nvmem_device *nvmem);
  42 void nvmem_destroy_layout(struct nvmem_device *nvmem);
  43 #else /* CONFIG_OF */
  44 static inline int nvmem_layout_bus_register(void)
  45 {
  46         return 0;
  47 }
  48
  49 static inline void nvmem_layout_bus_unregister(void) {}
  50
  51 static inline int nvmem_populate_layout(struct nvmem_device *nvmem)
  52 {
  53         return 0;
  54 }
  55
  56 static inline void nvmem_destroy_layout(struct nvmem_device *nvmem) { }
  57 #endif /* CONFIG_OF */
  58
  59 #endif  /* ifndef _LINUX_NVMEM_INTERNALS_H */