PM / devfreq: Use of_node_name_eq for node name comparisons

Convert string compares of DT node names to use of_node_name_eq helper
instead. This removes direct access to the node name pointer.

For instances using of_node_cmp, this has the side effect of now using
case sensitive comparisons. This should not matter for any FDT based
system which all of these are.

Cc: Chanwoo Choi <[email protected]>
Cc: MyungJoo Ham <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>

drivers/devfreq/devfreq-event.c

@@ -240,7 +240,7 @@ struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev,
 	}
 
 	list_for_each_entry(edev, &devfreq_event_list, node) {
-		if (!strcmp(edev->desc->name, node->name))
+		if (of_node_name_eq(node, edev->desc->name))
 			goto out;
 	}
 	edev = NULL;

drivers/devfreq/event/exynos-ppmu.c

@@ -529,7 +529,7 @@ static int of_get_devfreq_events(struct device_node *np,
 			if (!ppmu_events[i].name)
 				continue;
 
-			if (!of_node_cmp(node->name, ppmu_events[i].name))
+			if (of_node_name_eq(node, ppmu_events[i].name))
 				break;
 		}