i2c: Constify i2c_algorithm declarations, part 2

i2c: Constify i2c_algorithm declarations, part 2

Make struct i2c_algorithm declarations const in all i2c bus drivers
where it is possible.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index d658d91..a508cb9 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -175,7 +175,7 @@
 }
 
 /* For now, we only handle smbus */
-static struct i2c_algorithm i2c_powermac_algorithm = {
+static const struct i2c_algorithm i2c_powermac_algorithm = {
 	.smbus_xfer	= i2c_powermac_smbus_xfer,
 	.master_xfer	= i2c_powermac_master_xfer,
 	.functionality	= i2c_powermac_func,