return 0;
 }
 
-static struct pinctrl_ops tz1090_pdc_pinctrl_ops = {
+static const struct pinctrl_ops tz1090_pdc_pinctrl_ops = {
        .get_groups_count       = tz1090_pdc_pinctrl_get_groups_count,
        .get_group_name         = tz1090_pdc_pinctrl_get_group_name,
        .get_group_pins         = tz1090_pdc_pinctrl_get_group_pins,
        }
 }
 
-static struct pinmux_ops tz1090_pdc_pinmux_ops = {
+static const struct pinmux_ops tz1090_pdc_pinmux_ops = {
        .get_functions_count    = tz1090_pdc_pinctrl_get_funcs_count,
        .get_function_name      = tz1090_pdc_pinctrl_get_func_name,
        .get_function_groups    = tz1090_pdc_pinctrl_get_func_groups,
        return 0;
 }
 
-static struct pinconf_ops tz1090_pdc_pinconf_ops = {
+static const struct pinconf_ops tz1090_pdc_pinconf_ops = {
        .is_generic                     = true,
        .pin_config_get                 = tz1090_pdc_pinconf_get,
        .pin_config_set                 = tz1090_pdc_pinconf_set,