PM / devfreq: event: Change prototype of devfreq_event_get_edev_by_phandle function
Previously, devfreq core support 'devfreq-events' property in order to get
the devfreq-event device by phandle. But, 'devfreq-events' property name is
not proper on devicetree binding because this name doesn't mean
the any h/w attribute.
The devfreq-event core hand over the rights to decide the property name
for getting the devfreq-event device on devicetree. Each devfreq-event driver
will decide the property name on devicetree binding and then pass
the their own property name to devfreq_event_get_edev_by_phandle function.
And change the prototype of devfreq_event_get_edev_count function
because of used deprecated 'devfreq-events' property.
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c
index 56efbeb..6765c033 100644
--- a/drivers/devfreq/devfreq-event.c
+++ b/drivers/devfreq/devfreq-event.c
@@ -213,20 +213,21 @@ EXPORT_SYMBOL_GPL(devfreq_event_reset_event);
* devfreq_event_get_edev_by_phandle() - Get the devfreq-event dev from
* devicetree.
* @dev : the pointer to the given device
+ * @phandle_name: name of property holding a phandle value
* @index : the index into list of devfreq-event device
*
* Note that this function return the pointer of devfreq-event device.
*/
struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev,
- int index)
+ const char *phandle_name, int index)
{
struct device_node *node;
struct devfreq_event_dev *edev;
- if (!dev->of_node)
+ if (!dev->of_node || !phandle_name)
return ERR_PTR(-EINVAL);
- node = of_parse_phandle(dev->of_node, "devfreq-events", index);
+ node = of_parse_phandle(dev->of_node, phandle_name, index);
if (!node)
return ERR_PTR(-ENODEV);
@@ -258,19 +259,20 @@ EXPORT_SYMBOL_GPL(devfreq_event_get_edev_by_phandle);
/**
* devfreq_event_get_edev_count() - Get the count of devfreq-event dev
* @dev : the pointer to the given device
+ * @phandle_name: name of property holding a phandle value
*
* Note that this function return the count of devfreq-event devices.
*/
-int devfreq_event_get_edev_count(struct device *dev)
+int devfreq_event_get_edev_count(struct device *dev, const char *phandle_name)
{
int count;
- if (!dev->of_node) {
+ if (!dev->of_node || !phandle_name) {
dev_err(dev, "device does not have a device node entry\n");
return -EINVAL;
}
- count = of_property_count_elems_of_size(dev->of_node, "devfreq-events",
+ count = of_property_count_elems_of_size(dev->of_node, phandle_name,
sizeof(u32));
if (count < 0) {
dev_err(dev,
