Merge tag 'usb-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB patchset for 3.18-rc1.  Also in here is the PHY
  tree, as it seems to fit well with the USB tree for various reasons...

  Anyway, lots of little changes in here, all over the place, full
  details in the changelog

  All have been in the linux-next tree for a while with no issues"

* tag 'usb-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (244 commits)
  USB: host: st: fix typo 'CONFIG_USB_EHCI_HCD_ST'
  uas: Reduce number of function arguments for uas_alloc_foo functions
  xhci: Allow xHCI drivers to be built as separate modules
  xhci: Export symbols used by host-controller drivers
  xhci: Check for XHCI_COMP_MODE_QUIRK when disabling D3cold
  xhci: Introduce xhci_init_driver()
  usb: hcd: add generic PHY support
  usb: rename phy to usb_phy in HCD
  usb: gadget: uvc: fix up uvcg_v4l2_get_unmapped_area typo
  USB: host: st: fix ehci/ohci driver selection
  usb: host: ehci-exynos: Remove unnecessary usb-phy support
  usb: core: return -ENOTSUPP for all targeted hosts
  USB: Remove .owner field for driver
  usb: core: log higher level message on malformed LANGID descriptor
  usb: Add LED triggers for USB activity
  usb: Rename usb-common.c
  usb: gadget: Refactor request completion
  usb: gadget: Introduce usb_gadget_giveback_request()
  usb: dwc2/gadget: move phy bus legth initialization
  phy: remove .owner field for drivers using module_platform_driver
  ...

5 files changed, 149 insertions, 2 deletions

diff --git a/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt b/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt
new file mode 100644
index 000000000000..1ef8228db73b
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt
@@ -0,0 +1,30 @@
+ST STiH407 USB PHY controller
+
+This file documents the dt bindings for the usb picoPHY driver which is the PHY for both USB2 and USB3
+host controllers (when controlling usb2/1.1 devices) available on STiH407 SoC family from STMicroelectronics.
+
+Required properties:
+- compatible		: should be "st,stih407-usb2-phy"
+- reg			: contain the offset and length of the system configuration registers
+			  used as glue logic to control & parameter phy
+- reg-names		: the names of the system configuration registers in "reg", should be "param" and "reg"
+- st,syscfg		: sysconfig register to manage phy parameter at driver level
+- resets		: list of phandle and reset specifier pairs. There should be two entries, one
+			  for the whole phy and one for the port
+- reset-names		: list of reset signal names. Should be "global" and "port"
+See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
+See: Documentation/devicetree/bindings/reset/reset.txt
+
+Example:
+
+usb2_picophy0: usbpicophy@f8 {
+	compatible	= "st,stih407-usb2-phy";
+	reg		= <0xf8 0x04>,	/* syscfg 5062 */
+			  <0xf4 0x04>;	/* syscfg 5061 */
+	reg-names	= "param", "ctrl";
+	#phy-cells	= <0>;
+	st,syscfg	= <&syscfg_core>;
+	resets		= <&softreset STIH407_PICOPHY_SOFTRESET>,
+			  <&picophyreset STIH407_PICOPHY0_RESET>;
+	reset-names	= "global", "port";
+};
diff --git a/Documentation/devicetree/bindings/phy/phy-stih41x-usb.txt b/Documentation/devicetree/bindings/phy/phy-stih41x-usb.txt
new file mode 100644
index 000000000000..00944a05ee6b
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-stih41x-usb.txt
@@ -0,0 +1,24 @@
+STMicroelectronics STiH41x USB PHY binding
+------------------------------------------
+
+This file contains documentation for the usb phy found in STiH415/6 SoCs from
+STMicroelectronics.
+
+Required properties:
+- compatible	: should be "st,stih416-usb-phy" or "st,stih415-usb-phy"
+- st,syscfg	: should be a phandle of the syscfg node
+- clock-names	: must contain "osc_phy"
+- clocks	: must contain an entry for each name in clock-names.
+See: Documentation/devicetree/bindings/clock/clock-bindings.txt
+- #phy-cells	: must be 0 for this phy
+See: Documentation/devicetree/bindings/phy/phy-bindings.txt
+
+Example:
+
+usb2_phy: usb2phy@0 {
+	compatible	= "st,stih416-usb-phy";
+	#phy-cell	= <0>;
+	st,syscfg	= <&syscfg_rear>;
+	clocks		= <&clk_sysin>;
+	clock-names	= "osc_phy";
+};
diff --git a/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt b/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
new file mode 100644
index 000000000000..86f2dbe07ed4
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
@@ -0,0 +1,39 @@
+Qualcomm DWC3 HS AND SS PHY CONTROLLER
+--------------------------------------
+
+DWC3 PHY nodes are defined to describe on-chip Synopsis Physical layer
+controllers.  Each DWC3 PHY controller should have its own node.
+
+Required properties:
+- compatible: should contain one of the following:
+	- "qcom,dwc3-hs-usb-phy" for High Speed Synopsis PHY controller
+	- "qcom,dwc3-ss-usb-phy" for Super Speed Synopsis PHY controller
+- reg: offset and length of the DWC3 PHY controller register set
+- #phy-cells: must be zero
+- clocks: a list of phandles and clock-specifier pairs, one for each entry in
+  clock-names.
+- clock-names: Should contain "ref" for the PHY reference clock
+
+Optional clocks:
+  "xo"		External reference clock
+
+Example:
+		phy@100f8800 {
+			compatible = "qcom,dwc3-hs-usb-phy";
+			reg = <0x100f8800 0x30>;
+			clocks = <&gcc USB30_0_UTMI_CLK>;
+			clock-names = "ref";
+			#phy-cells = <0>;
+
+			status = "ok";
+		};
+
+		phy@100f8830 {
+			compatible = "qcom,dwc3-ss-usb-phy";
+			reg = <0x100f8830 0x30>;
+			clocks = <&gcc USB30_0_MASTER_CLK>;
+			clock-names = "ref";
+			#phy-cells = <0>;
+
+			status = "ok";
+		};
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt
new file mode 100644
index 000000000000..00fc52a034b7
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt
@@ -0,0 +1,51 @@
+* Renesas R-Car generation 2 USB PHY
+
+This file provides information on what the device node for the R-Car generation
+2 USB PHY contains.
+
+Required properties:
+- compatible: "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC.
+	      "renesas,usb-phy-r8a7791" if the device is a part of R8A7791 SoC.
+- reg: offset and length of the register block.
+- #address-cells: number of address cells for the USB channel subnodes, must
+		  be <1>.
+- #size-cells: number of size cells for the USB channel subnodes, must be <0>.
+- clocks: clock phandle and specifier pair.
+- clock-names: string, clock input name, must be "usbhs".
+
+The USB PHY device tree node should have the subnodes corresponding to the USB
+channels. These subnodes must contain the following properties:
+- reg: the USB controller selector; see the table below for the values.
+- #phy-cells: see phy-bindings.txt in the same directory, must be <1>.
+
+The phandle's argument in the PHY specifier is the USB controller selector for
+the USB channel; see the selector meanings below:
+
++-----------+---------------+---------------+
+|\ Selector |               |               |
++ --------- +       0       |       1       |
+| Channel  \|               |               |
++-----------+---------------+---------------+
+| 0         | PCI EHCI/OHCI | HS-USB        |
+| 2         | PCI EHCI/OHCI | xHCI          |
++-----------+---------------+---------------+
+
+Example (Lager board):
+
+	usb-phy@e6590100 {
+		compatible = "renesas,usb-phy-r8a7790";
+		reg = <0 0xe6590100 0 0x100>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&mstp7_clks R8A7790_CLK_HSUSB>;
+		clock-names = "usbhs";
+
+		usb-channel@0 {
+			reg = <0>;
+			#phy-cells = <1>;
+		};
+		usb-channel@2 {
+			reg = <2>;
+			#phy-cells = <1>;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 7a6feea2a48b..15e0f2c7130f 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -17,8 +17,11 @@ Samsung EXYNOS SoC series Display Port PHY
 -------------------------------------------------
 
 Required properties:
-- compatible : should be "samsung,exynos5250-dp-video-phy";
-- reg : offset and length of the Display Port PHY register set;
+- compatible : should be one of the following supported values:
+	 - "samsung,exynos5250-dp-video-phy"
+	 - "samsung,exynos5420-dp-video-phy"
+- samsung,pmu-syscon: phandle for PMU system controller interface, used to
+		      control pmu registers for power isolation.
 - #phy-cells : from the generic PHY bindings, must be 0;
 
 Samsung S5P/EXYNOS SoC series USB PHY