regulator: twl6030: Constify regulator_ops

Signed-off-by: Axel Lin <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/twl6030-regulator.c

···
 	return -ENODEV;
 }
 
-static struct regulator_ops twl6030coresmps_ops = {
+static const struct regulator_ops twl6030coresmps_ops = {
 	.set_voltage	= twl6030coresmps_set_voltage,
 	.get_voltage	= twl6030coresmps_get_voltage,
 };
···
 	return vsel;
 }
 
-static struct regulator_ops twl6030ldo_ops = {
+static const struct regulator_ops twl6030ldo_ops = {
 	.list_voltage	= regulator_list_voltage_linear_range,
 
 	.set_voltage_sel = twl6030ldo_set_voltage_sel,
···
 	.get_status	= twl6030reg_get_status,
 };
 
-static struct regulator_ops twl6030fixed_ops = {
+static const struct regulator_ops twl6030fixed_ops = {
 	.list_voltage	= regulator_list_voltage_linear,
 
 	.enable		= twl6030reg_enable,
···
 	return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
 }
 
-static struct regulator_ops twlsmps_ops = {
+static const struct regulator_ops twlsmps_ops = {
 	.list_voltage		= twl6030smps_list_voltage,
 	.map_voltage		= twl6030smps_map_voltage,