Commit 4dd7c553 authored by Dimitris Papastamos's avatar Dimitris Papastamos Committed by Mark Brown
Browse files

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: default avatarDimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent cf57d607
......@@ -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);
......
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