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path: root/drivers/usb/core/phy.c
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Diffstat (limited to 'drivers/usb/core/phy.c')
-rw-r--r--drivers/usb/core/phy.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/usb/core/phy.c b/drivers/usb/core/phy.c
index 7580493b867a..fb1588e7c282 100644
--- a/drivers/usb/core/phy.c
+++ b/drivers/usb/core/phy.c
@@ -151,6 +151,27 @@ err_out:
}
EXPORT_SYMBOL_GPL(usb_phy_roothub_set_mode);
+int usb_phy_roothub_calibrate(struct usb_phy_roothub *phy_roothub)
+{
+ struct usb_phy_roothub *roothub_entry;
+ struct list_head *head;
+ int err;
+
+ if (!phy_roothub)
+ return 0;
+
+ head = &phy_roothub->list;
+
+ list_for_each_entry(roothub_entry, head, list) {
+ err = phy_calibrate(roothub_entry->phy);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usb_phy_roothub_calibrate);
+
int usb_phy_roothub_power_on(struct usb_phy_roothub *phy_roothub)
{
struct usb_phy_roothub *roothub_entry;