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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2016-06-06 11:48:44 +0300
committerWolfram Sang <wsa@the-dreams.de>2016-07-17 20:41:54 +0300
commitd5bc0047986df1fe99805141650cc3d429499ecc (patch)
treed7d9606430e175de7f611380641d8950ce2388ab /drivers/misc
parentb0b9f7bf9d1b76bdc05f3ba4955f42ccb9fd461d (diff)
downloadlinux-d5bc0047986df1fe99805141650cc3d429499ecc.tar.xz
eeprom: at24: move at24_read() below at24_eeprom_write()
In preparation for splitting at24_eeprom_write() & at24_eeprom_read() into smaller, specialized routines move at24_read() below, so that it won't be intertwined with the low-level EEPROM accessors. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/eeprom/at24.c64
1 files changed, 32 insertions, 32 deletions
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 411600de4a1b..e12d76fcbce6 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -249,38 +249,6 @@ static ssize_t at24_eeprom_read(struct at24_data *at24, char *buf,
return -ETIMEDOUT;
}
-static int at24_read(void *priv, unsigned int off, void *val, size_t count)
-{
- struct at24_data *at24 = priv;
- char *buf = val;
-
- if (unlikely(!count))
- return count;
-
- /*
- * Read data from chip, protecting against concurrent updates
- * from this host, but not from other I2C masters.
- */
- mutex_lock(&at24->lock);
-
- while (count) {
- int status;
-
- status = at24_eeprom_read(at24, buf, off, count);
- if (status < 0) {
- mutex_unlock(&at24->lock);
- return status;
- }
- buf += status;
- off += status;
- count -= status;
- }
-
- mutex_unlock(&at24->lock);
-
- return 0;
-}
-
/*
* Note that if the hardware write-protect pin is pulled high, the whole
* chip is normally write protected. But there are plenty of product
@@ -366,6 +334,38 @@ static ssize_t at24_eeprom_write(struct at24_data *at24, const char *buf,
return -ETIMEDOUT;
}
+static int at24_read(void *priv, unsigned int off, void *val, size_t count)
+{
+ struct at24_data *at24 = priv;
+ char *buf = val;
+
+ if (unlikely(!count))
+ return count;
+
+ /*
+ * Read data from chip, protecting against concurrent updates
+ * from this host, but not from other I2C masters.
+ */
+ mutex_lock(&at24->lock);
+
+ while (count) {
+ int status;
+
+ status = at24_eeprom_read(at24, buf, off, count);
+ if (status < 0) {
+ mutex_unlock(&at24->lock);
+ return status;
+ }
+ buf += status;
+ off += status;
+ count -= status;
+ }
+
+ mutex_unlock(&at24->lock);
+
+ return 0;
+}
+
static int at24_write(void *priv, unsigned int off, void *val, size_t count)
{
struct at24_data *at24 = priv;