diff options
| author |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-08-10 17:15:31 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-08-14 19:51:14 +0900 |
| commit | 21f555445676e5c7d30bb9b3487cb183d02e45e3 (patch) | |
| tree | a8f18e1cb71364af81722652c19b8584fb856757 /drivers/base/regmap/regmap-debugfs.c | |
| parent | regmap: Add functions to check for access on registers (diff) | |
| download | linux-dev-21f555445676e5c7d30bb9b3487cb183d02e45e3.tar.xz linux-dev-21f555445676e5c7d30bb9b3487cb183d02e45e3.zip | |
regmap: Share some of the debugfs infrastructure ready for more files
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base/regmap/regmap-debugfs.c')
| -rw-r--r-- | drivers/base/regmap/regmap-debugfs.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index fff8e832a985..e541d7f4b4e0 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -20,7 +20,14 @@ static struct dentry *regmap_debugfs_root; -static int regmap_map_open_file(struct inode *inode, struct file *file) +/* Calculate the length of a fixed format */ +static size_t regmap_calc_reg_len(int max_val, char *buf, size_t buf_size) +{ + snprintf(buf, buf_size, "%x", max_val); + return strlen(buf); +} + +static int regmap_open_file(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; @@ -46,8 +53,7 @@ static ssize_t regmap_map_read_file(struct file *file, char __user *user_buf, return -ENOMEM; /* Calculate the length of a fixed format */ - snprintf(buf, count, "%x", map->max_register); - reg_len = strlen(buf); + reg_len = regmap_calc_reg_len(map->max_register, buf, count); val_len = 2 * map->format.val_bytes; tot_len = reg_len + val_len + 3; /* : \n */ @@ -98,7 +104,7 @@ out: } static const struct file_operations regmap_map_fops = { - .open = regmap_map_open_file, + .open = regmap_open_file, .read = regmap_map_read_file, .llseek = default_llseek, }; |