rtc: ds1307: constify struct chip_desc variables

Constify struct chip_desc variables.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 5a3c563..73d2084 100644 (file)
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -147,7 +147,7 @@ struct chip_desc {
 
 static u8 do_trickle_setup_ds1339(struct ds1307 *, uint32_t ohms, bool diode);
 
-static struct chip_desc chips[last_ds_type] = {
+static const struct chip_desc chips[last_ds_type] = {
        [ds_1307] = {
                .nvram_offset   = 8,
                .nvram_size     = 56,
@@ -941,7 +941,7 @@ static u8 do_trickle_setup_ds1339(struct ds1307 *ds1307,
 }
 
 static u8 ds1307_trickle_init(struct ds1307 *ds1307,
-                             struct chip_desc *chip)
+                             const struct chip_desc *chip)
 {
        uint32_t ohms;
        bool diode = true;
@@ -1311,7 +1311,7 @@ static int ds1307_probe(struct i2c_client *client,
        struct ds1307           *ds1307;
        int                     err = -ENODEV;
        int                     tmp, wday;
-       struct chip_desc        *chip;
+       const struct chip_desc  *chip;
        bool                    want_irq = false;
        bool                    ds1307_can_wakeup_device = false;
        unsigned char           *buf;