Merge tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB patches from Greg KH:
 "Here's the big pull request for the USB driver tree for 3.20-rc1.

  Nothing major happening here, just lots of gadget driver updates, new
  device ids, and a bunch of cleanups.

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

* tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (299 commits)
  usb: musb: fix device hotplug behind hub
  usb: dwc2: Fix a bug in reading the endpoint directions from reg.
  staging: emxx_udc: fix the build error
  usb: Retry port status check on resume to work around RH bugs
  Revert "usb: Reset USB-3 devices on USB-3 link bounce"
  uhci-hub: use HUB_CHAR_*
  usb: kconfig: replace PPC_OF with PPC
  ehci-pci: disable for Intel MID platforms (update)
  usb: gadget: Kconfig: use bool instead of boolean
  usb: musb: blackfin: remove incorrect __exit_p()
  USB: fix use-after-free bug in usb_hcd_unlink_urb()
  ehci-pci: disable for Intel MID platforms
  usb: host: pci_quirks: joing string literals
  USB: add flag for HCDs that can't receive wakeup requests (isp1760-hcd)
  USB: usbfs: allow URBs to be reaped after disconnection
  cdc-acm: kill unnecessary messages
  cdc-acm: add sanity checks
  usb: phy: phy-generic: Fix USB PHY gpio reset
  usb: dwc2: fix USB core dependencies
  usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel()
  ...

1 files changed, 34 insertions, 2 deletions

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 6a795aa2ff05..ae095f009b4f 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -155,6 +155,8 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	struct dwc2_core_params defparams;
 	struct dwc2_hsotg *hsotg;
 	struct resource *res;
+	struct phy *phy;
+	struct usb_phy *uphy;
 	int retval;
 	int irq;
 
@@ -212,6 +214,24 @@ static int dwc2_driver_probe(struct platform_device *dev)
 
 	hsotg->dr_mode = of_usb_get_dr_mode(dev->dev.of_node);
 
+	/*
+	 * Attempt to find a generic PHY, then look for an old style
+	 * USB PHY
+	 */
+	phy = devm_phy_get(&dev->dev, "usb2-phy");
+	if (IS_ERR(phy)) {
+		hsotg->phy = NULL;
+		uphy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
+		if (IS_ERR(uphy))
+			hsotg->uphy = NULL;
+		else
+			hsotg->uphy = uphy;
+	} else {
+		hsotg->phy = phy;
+		phy_power_on(hsotg->phy);
+		phy_init(hsotg->phy);
+	}
+
 	spin_lock_init(&hsotg->lock);
 	mutex_init(&hsotg->init_mutex);
 	retval = dwc2_gadget_init(hsotg, irq);
@@ -231,8 +251,15 @@ static int __maybe_unused dwc2_suspend(struct device *dev)
 	struct dwc2_hsotg *dwc2 = dev_get_drvdata(dev);
 	int ret = 0;
 
-	if (dwc2_is_device_mode(dwc2))
+	if (dwc2_is_device_mode(dwc2)) {
 		ret = s3c_hsotg_suspend(dwc2);
+	} else {
+		if (dwc2->lx_state == DWC2_L0)
+			return 0;
+		phy_exit(dwc2->phy);
+		phy_power_off(dwc2->phy);
+
+	}
 	return ret;
 }
 
@@ -241,8 +268,13 @@ static int __maybe_unused dwc2_resume(struct device *dev)
 	struct dwc2_hsotg *dwc2 = dev_get_drvdata(dev);
 	int ret = 0;
 
-	if (dwc2_is_device_mode(dwc2))
+	if (dwc2_is_device_mode(dwc2)) {
 		ret = s3c_hsotg_resume(dwc2);
+	} else {
+		phy_power_on(dwc2->phy);
+		phy_init(dwc2->phy);
+
+	}
 	return ret;
 }