[RESEND PATCH v2 09/13] eeprom: at24: use at24cs_serial_read()

[Bartosz Golaszewski]

Assign at24cs_serial_read() to at24->read_func if the chip allows serial
number read operation.

Signed-off-by: Bartosz Golaszewski <bgolaszew...@baylibre.com>
---
 drivers/misc/eeprom/at24.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 4c868a2..d3e4d66 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -163,9 +163,8 @@ static struct i2c_client *at24_translate_offset(struct 
at24_data *at24,
        return at24->client[i];
 }
 
-static ssize_t __attribute__((unused))
-at24cs_serial_read(struct at24_data *at24,
-                  char *buf, loff_t off, size_t count)
+static ssize_t at24cs_serial_read(struct at24_data *at24,
+                                 char *buf, loff_t off, size_t count)
 {
        unsigned long timeout, read_time;
        struct i2c_client *client;
@@ -615,8 +614,12 @@ static int at24_probe(struct i2c_client *client, const 
struct i2c_device_id *id)
        at24->chip = chip;
        at24->num_addresses = num_addresses;
 
-       at24->read_func = at24_read;
-       at24->write_func = at24_write;
+       if (chip.flags & AT24_FLAG_SERIAL) {
+               at24->read_func = at24cs_serial_read;
+       } else {
+               at24->read_func = at24_read;
+               at24->write_func = at24_write;
+       }
 
        writable = !(chip.flags & AT24_FLAG_READONLY);
        if (writable) {
-- 
2.7.4