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authorDimitris Papastamos <dp@opensource.wolfsonmicro.com>2013-02-11 10:50:59 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-02-11 11:25:33 +0000
commit4dd7c5531d3b046574da39096b1a66c738aca102 (patch)
tree35924e82be3e915577262cc4b27dd9f34fb7b802 /drivers/base
parentcf57d6071f0610c99856c006ac06eb98a151f485 (diff)
downloadvexpress-lsk-4dd7c5531d3b046574da39096b1a66c738aca102.tar.gz
regmap: debugfs: Factor out debugfs_tot_len calc into a function
In preparation to support the regmap debugfs ranges functionality factor this code out to a separate function. We'll need to ensure that the value has been correctly calculated from two separate places in the code. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/regmap/regmap-debugfs.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 246f459e917..78d5f20c5f5 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -155,6 +155,19 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
return ret;
}
+static inline void regmap_calc_tot_len(struct regmap *map,
+ void *buf, size_t count)
+{
+ /* Calculate the length of a fixed format */
+ if (!map->debugfs_tot_len) {
+ map->debugfs_reg_len = regmap_calc_reg_len(map->max_register,
+ buf, count);
+ map->debugfs_val_len = 2 * map->format.val_bytes;
+ map->debugfs_tot_len = map->debugfs_reg_len +
+ map->debugfs_val_len + 3; /* : \n */
+ }
+}
+
static ssize_t regmap_read_debugfs(struct regmap *map, unsigned int from,
unsigned int to, char __user *user_buf,
size_t count, loff_t *ppos)
@@ -173,14 +186,7 @@ static ssize_t regmap_read_debugfs(struct regmap *map, unsigned int from,
if (!buf)
return -ENOMEM;
- /* Calculate the length of a fixed format */
- if (!map->debugfs_tot_len) {
- map->debugfs_reg_len = regmap_calc_reg_len(map->max_register,
- buf, count);
- map->debugfs_val_len = 2 * map->format.val_bytes;
- map->debugfs_tot_len = map->debugfs_reg_len +
- map->debugfs_val_len + 3; /* : \n */
- }
+ regmap_calc_tot_len(map, buf, count);
/* Work out which register we're starting at */
start_reg = regmap_debugfs_get_dump_start(map, from, *ppos, &p);