Merge tag 'usb-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big USB/PHY driver pull request for 5.1-rc1.

  The usual set of gadget driver updates, phy driver updates, xhci
  updates, and typec additions. Also included in here are a lot of small
  cleanups and fixes and driver updates where needed.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (167 commits)
  wusb: Remove unnecessary static function ckhdid_printf
  usb: core: make default autosuspend delay configurable
  usb: core: Fix typo in description of "authorized_default"
  usb: chipidea: Refactor USB PHY selection and keep a single PHY
  usb: chipidea: Grab the (legacy) USB PHY by phandle first
  usb: chipidea: imx: set power polarity
  dt-bindings: usb: ci-hdrc-usb2: add property power-active-high
  usb: chipidea: imx: remove unused header files
  usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
  usb: core: add option of only authorizing internal devices
  usb: typec: tps6598x: handle block writes separately with plain-I2C adapters
  usb: xhci: Fix for Enabling USB ROLE SWITCH QUIRK on INTEL_SUNRISEPOINT_LP_XHCI
  usb: xhci: fix build warning - missing prototype
  usb: xhci: dbc: Fixing typo error.
  usb: xhci: remove unused member 'parent' in xhci_regset struct
  xhci: tegra: Prevent error pointer dereference
  USB: serial: option: add Telit ME910 ECM composition
  usb: core: Replace hardcoded check with inline function from usb.h
  usb: core: skip interfaces disabled in devicetree
  usb: typec: mux: remove redundant check on variable match
  ...

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/usb/core/phy.c b/drivers/usb/core/phy.c
index 38b2c776c4b4..7580493b867a 100644
--- a/drivers/usb/core/phy.c
+++ b/drivers/usb/core/phy.c
@@ -123,6 +123,34 @@ int usb_phy_roothub_exit(struct usb_phy_roothub *phy_roothub)
 }
 EXPORT_SYMBOL_GPL(usb_phy_roothub_exit);
 
+int usb_phy_roothub_set_mode(struct usb_phy_roothub *phy_roothub,
+			     enum phy_mode mode)
+{
+	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_set_mode(roothub_entry->phy, mode);
+		if (err)
+			goto err_out;
+	}
+
+	return 0;
+
+err_out:
+	list_for_each_entry_continue_reverse(roothub_entry, head, list)
+		phy_power_off(roothub_entry->phy);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(usb_phy_roothub_set_mode);
+
 int usb_phy_roothub_power_on(struct usb_phy_roothub *phy_roothub)
 {
 	struct usb_phy_roothub *roothub_entry;