[PATCH v3 1/9] regmap: Introduce regmap_get_max_register.
From: Srinivas Kandagatla <hidden>
Date: 2015-03-24 22:29:49
Also in:
linux-api, linux-arm-kernel, linux-arm-msm, lkml
Subsystem:
driver core, kobjects, debugfs and sysfs, register map abstraction, the rest · Maintainers:
Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Mark Brown, Linus Torvalds
This patch introduces regmap_get_max_register() function which would be used by the infrastructures like eeprom framework built on top of regmap. Signed-off-by: Srinivas Kandagatla <redacted> --- drivers/base/regmap/regmap.c | 12 ++++++++++++ include/linux/regmap.h | 7 +++++++ 2 files changed, 19 insertions(+)
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index d2f8a81..6fd234b 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c@@ -2616,6 +2616,18 @@ int regmap_get_val_bytes(struct regmap *map) } EXPORT_SYMBOL_GPL(regmap_get_val_bytes); +/* + * regmap_get_max_register(): Report the max register value + * + * Report the max register value, mainly intended to for use by + * generic infrastructure built on top of regmap. + */ +int regmap_get_max_register(struct regmap *map) +{ + return map->max_register ? : -EINVAL; +} +EXPORT_SYMBOL_GPL(regmap_get_max_register); + int regmap_parse_val(struct regmap *map, const void *buf, unsigned int *val) {
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 4419b99..c46dbf3 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h@@ -433,6 +433,7 @@ int regmap_update_bits_check_async(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, bool *change); int regmap_get_val_bytes(struct regmap *map); +int regmap_get_max_register(struct regmap *map); int regmap_async_complete(struct regmap *map); bool regmap_can_raw_write(struct regmap *map);
@@ -676,6 +677,12 @@ static inline int regmap_get_val_bytes(struct regmap *map) return -EINVAL; } +static inline int regmap_get_max_register(struct regmap *map) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline int regcache_sync(struct regmap *map) { WARN_ONCE(1, "regmap API is disabled");
--
1.9.1