3  * PowerNV OPAL Powercap interface
8 #define pr_fmt(fmt)     "opal-powercap: " fmt
144 	struct device_node *powercap, *node;  in opal_powercap_init()  local
147 	powercap = of_find_compatible_node(NULL, NULL, "ibm,opal-powercap");  in opal_powercap_init()
148 	if (!powercap) {  in opal_powercap_init()
149 		pr_devel("Powercap node not found\n");  in opal_powercap_init()
153 	pcaps = kcalloc(of_get_child_count(powercap), sizeof(*pcaps),  in opal_powercap_init()
158 	powercap_kobj = kobject_create_and_add("powercap", opal_kobj);  in opal_powercap_init()
160 		pr_warn("Failed to create powercap kobject\n");  in opal_powercap_init()
165 	for_each_child_of_node(powercap, node) {  in opal_powercap_init()
170 		if (!of_property_read_u32(node, "powercap-min", &min)) {  in opal_powercap_init()
175 		if (!of_property_read_u32(node, "powercap-max", &max)) {  in opal_powercap_init()
180 		if (!of_property_read_u32(node, "powercap-current", &cur)) {  in opal_powercap_init()
206 			powercap_add_attr(min, "powercap-min",  in opal_powercap_init()
213 			powercap_add_attr(max, "powercap-max",  in opal_powercap_init()
220 			powercap_add_attr(cur, "powercap-current",  in opal_powercap_init()
229 			pr_warn("Failed to create powercap attribute group %s\n",  in opal_powercap_init()
235 	of_node_put(powercap);  in opal_powercap_init()
250 	of_node_put(powercap);  in opal_powercap_init()