nvmem: core: move struct nvmem_cell_info to nvmem-provider.h

struct nvmem_cell_info is used to describe a cell. Thus this should
really be in the nvmem-provider's header. There are two (unused) nvmem
access methods which use the nvmem_cell_info to describe the cell to be
accesses. One can argue, that they will create a cell before accessing,
thus they are both a provider and a consumer.

struct nvmem_cell_info will get used more and more by nvmem-providers,
don't force them to also include the consumer header, although they are
not.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230206134356.839737-14-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/nvmem-consumer.h

@@ -18,15 +18,7 @@ struct device_node;
 /* consumer cookie */
 struct nvmem_cell;
 struct nvmem_device;
-
-struct nvmem_cell_info {
-	const char		*name;
-	unsigned int		offset;
-	unsigned int		bytes;
-	unsigned int		bit_offset;
-	unsigned int		nbits;
-	struct device_node	*np;
-};
+struct nvmem_cell_info;
 
 /**
  * struct nvmem_cell_lookup - cell lookup entry

include/linux/nvmem-provider.h

@@ -14,7 +14,6 @@
 #include <linux/gpio/consumer.h>
 
 struct nvmem_device;
-struct nvmem_cell_info;
 typedef int (*nvmem_reg_read_t)(void *priv, unsigned int offset,
 				void *val, size_t bytes);
 typedef int (*nvmem_reg_write_t)(void *priv, unsigned int offset,
@@ -47,6 +46,24 @@ struct nvmem_keepout {
 	unsigned char value;
 };
 
+/**
+ * struct nvmem_cell_info - NVMEM cell description
+ * @name:	Name.
+ * @offset:	Offset within the NVMEM device.
+ * @bytes:	Length of the cell.
+ * @bit_offset:	Bit offset if cell is smaller than a byte.
+ * @nbits:	Number of bits.
+ * @np:		Optional device_node pointer.
+ */
+struct nvmem_cell_info {
+	const char		*name;
+	unsigned int		offset;
+	unsigned int		bytes;
+	unsigned int		bit_offset;
+	unsigned int		nbits;
+	struct device_node	*np;
+};
+
 /**
  * struct nvmem_config - NVMEM device configuration
  *