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regmap: Add functions to check for access on registers

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We're going to be using these in quite a few places so factor out the
readable/writable/volatile/precious checks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown
2011-08-10 17:14:41 +09:00
parent 13c54137f7
commit 8de2f081ef
3 changed files with 51 additions and 4 deletions
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drivers/base/regmap/internal.h
+5
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@@ -48,6 +48,11 @@ struct regmap {
bool (*precious_reg)(struct device *dev, unsigned int reg);
};
bool regmap_writeable(struct regmap *map, unsigned int reg);
bool regmap_readable(struct regmap *map, unsigned int reg);
bool regmap_volatile(struct regmap *map, unsigned int reg);
bool regmap_precious(struct regmap *map, unsigned int reg);
#ifdef CONFIG_DEBUG_FS
extern void regmap_debugfs_initcall(void);
extern void regmap_debugfs_init(struct regmap *map);