regmap: Use a local header for API internals

Allowing the implementation to be multi-file.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
new file mode 100644
index 000000000000..7e61504a7ac3
--- /dev/null
+++ b/drivers/base/regmap/internal.h
@@ -0,0 +1,45 @@
+/*
+ * Register map access API internal header
+ *
+ * Copyright 2011 Wolfson Microelectronics plc
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _REGMAP_INTERNAL_H
+#define _REGMAP_INTERNAL_H
+
+#include <linux/regmap.h>
+
+struct regmap;
+
+struct regmap_format {
+        size_t buf_size;
+        size_t reg_bytes;
+        size_t val_bytes;
+        void (*format_write)(struct regmap *map,
+                             unsigned int reg, unsigned int val);
+        void (*format_reg)(void *buf, unsigned int reg);
+        void (*format_val)(void *buf, unsigned int val);
+        unsigned int (*parse_val)(void *buf);
+};
+
+struct regmap {
+        struct mutex lock;
+
+        struct device *dev; /* Device we do I/O on */
+        void *work_buf;     /* Scratch buffer used to format I/O */
+        struct regmap_format format;  /* Buffer format */
+        const struct regmap_bus *bus;
+
+        unsigned int max_register;
+        bool (*writeable_reg)(struct device *dev, unsigned int reg);
+        bool (*readable_reg)(struct device *dev, unsigned int reg);
+        bool (*volatile_reg)(struct device *dev, unsigned int reg);
+};
+
+#endif