@@ -258,6 +258,33 @@ int phy_power_off(struct phy *phy)
EXPORT_SYMBOL_GPL(phy_power_off);
/**
+ * phy_set_rate - set an specified lane at an specified rate
+ * @phy: phy instance to be set
+ * @lane: zero-based lane index
+ * @rate: operating rate in bps (bits per second)
+ *
+ * Returns 0 if successful, -ENOTSUPP if not supported
+ * -EINVAL if parameter out of range.
+ */
+int phy_set_rate(struct phy *phy, int lane, u64 rate)
+{
+ int ret = 0;
+
+ mutex_lock(&phy->mutex);
+ if (phy->ops->set_rate) {
+ ret = phy->ops->set_rate(phy, lane, rate);
+ if (ret < 0) {
+ dev_err(&phy->dev, "phy set rate failed --> %d\n",
+ ret);
+ }
+ }
+ mutex_unlock(&phy->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(phy_set_rate);
+
+/**
* of_phy_get() - lookup and obtain a reference to a phy by phandle
* @dev: device that requests this phy
* @index: the index of the phy
@@ -27,6 +27,7 @@ struct phy;
* @exit: operation to be performed while exiting
* @power_on: powering on the phy
* @power_off: powering off the phy
+ * @set_rate: set the rate
* @owner: the module owner containing the ops
*/
struct phy_ops {
@@ -34,6 +35,7 @@ struct phy_ops {
int (*exit)(struct phy *phy);
int (*power_on)(struct phy *phy);
int (*power_off)(struct phy *phy);
+ int (*set_rate)(struct phy *phy, int lane, u64 rate);
struct module *owner;
};
@@ -137,6 +139,7 @@ int phy_init(struct phy *phy);
int phy_exit(struct phy *phy);
int phy_power_on(struct phy *phy);
int phy_power_off(struct phy *phy);
+int phy_set_rate(struct phy *phy, int lane, u64 rate);
static inline int phy_get_bus_width(struct phy *phy)
{
return phy->attrs.bus_width;
@@ -217,6 +220,11 @@ static inline int phy_power_off(struct phy *phy)
return -ENOSYS;
}
+static inline int phy_set_rate(struct phy *phy, int lane, u64 rate)
+{
+ return -ENOSYS;
+}
+
static inline int phy_get_bus_width(struct phy *phy)
{
return -ENOSYS;