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authorJean Delvare <khali@linux-fr.org>2011-01-10 22:11:23 +0100
committerJean Delvare <khali@endymion.delvare>2011-01-10 22:11:23 +0100
commit0cc43a1806f078f7fd414850d8f1f1761696e4af (patch)
tree2278fca3af95002a867fa72b34e4ca97ccf5489f /drivers/rtc
parentaf5a60baaee66e2f891dbb9a8519ca28ab7da7cd (diff)
downloadlinux-2.6.38-lt-ux500-0cc43a1806f078f7fd414850d8f1f1761696e4af.tar.gz
i2c: Constify i2c_client where possible
Helper functions for I2C and SMBus transactions don't modify the i2c_client that is passed to them, so it can be marked const. Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-ds1307.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index d827ce570a8..0d559b6416d 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -106,9 +106,9 @@ struct ds1307 {
struct i2c_client *client;
struct rtc_device *rtc;
struct work_struct work;
- s32 (*read_block_data)(struct i2c_client *client, u8 command,
+ s32 (*read_block_data)(const struct i2c_client *client, u8 command,
u8 length, u8 *values);
- s32 (*write_block_data)(struct i2c_client *client, u8 command,
+ s32 (*write_block_data)(const struct i2c_client *client, u8 command,
u8 length, const u8 *values);
};
@@ -158,8 +158,8 @@ MODULE_DEVICE_TABLE(i2c, ds1307_id);
#define BLOCK_DATA_MAX_TRIES 10
-static s32 ds1307_read_block_data_once(struct i2c_client *client, u8 command,
- u8 length, u8 *values)
+static s32 ds1307_read_block_data_once(const struct i2c_client *client,
+ u8 command, u8 length, u8 *values)
{
s32 i, data;
@@ -172,7 +172,7 @@ static s32 ds1307_read_block_data_once(struct i2c_client *client, u8 command,
return i;
}
-static s32 ds1307_read_block_data(struct i2c_client *client, u8 command,
+static s32 ds1307_read_block_data(const struct i2c_client *client, u8 command,
u8 length, u8 *values)
{
u8 oldvalues[I2C_SMBUS_BLOCK_MAX];
@@ -198,7 +198,7 @@ static s32 ds1307_read_block_data(struct i2c_client *client, u8 command,
return length;
}
-static s32 ds1307_write_block_data(struct i2c_client *client, u8 command,
+static s32 ds1307_write_block_data(const struct i2c_client *client, u8 command,
u8 length, const u8 *values)
{
u8 currvalues[I2C_SMBUS_BLOCK_MAX];