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-rw-r--r--Documentation/ABI/testing/sysfs-bus-usb10
-rw-r--r--Documentation/ABI/testing/sysfs-class-usb_role21
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt58
-rw-r--r--Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt23
-rw-r--r--Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt4
-rw-r--r--Documentation/devicetree/bindings/phy/meson-gxl-usb3-phy.txt31
-rw-r--r--Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt59
-rw-r--r--Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt71
-rw-r--r--Documentation/devicetree/bindings/phy/phy-mapphone-mdm6600.txt29
-rw-r--r--Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt4
-rw-r--r--Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt35
-rw-r--r--Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.txt73
-rw-r--r--Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt6
-rw-r--r--Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt5
-rw-r--r--Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt2
-rw-r--r--Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt2
-rw-r--r--Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt1
-rw-r--r--Documentation/devicetree/bindings/usb/amlogic,dwc3.txt42
-rw-r--r--Documentation/devicetree/bindings/usb/dwc3.txt16
-rw-r--r--Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt5
-rw-r--r--Documentation/devicetree/bindings/usb/mediatek,mtu3.txt5
-rw-r--r--Documentation/devicetree/bindings/usb/usb-ehci.txt6
-rw-r--r--Documentation/devicetree/bindings/usb/usb-hcd.txt9
-rw-r--r--Documentation/devicetree/bindings/usb/usb-ohci.txt6
-rw-r--r--Documentation/devicetree/bindings/usb/usb-uhci.txt3
-rw-r--r--Documentation/devicetree/bindings/usb/usb-xhci.txt5
-rw-r--r--Documentation/driver-api/device_connection.rst43
-rw-r--r--Documentation/driver-api/usb/typec.rst73
28 files changed, 602 insertions, 45 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index 0bd731cbb50c..c702c78f24d8 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -189,6 +189,16 @@ Description:
The file will read "hotplug", "wired" and "not used" if the
information is available, and "unknown" otherwise.
+What: /sys/bus/usb/devices/.../(hub interface)/portX/over_current_count
+Date: February 2018
+Contact: Richard Leitner <richard.leitner@skidata.com>
+Description:
+ Most hubs are able to detect over-current situations on their
+ ports and report them to the kernel. This attribute is to expose
+ the number of over-current situation occurred on a specific port
+ to user space. This file will contain an unsigned 32 bit value
+ which wraps to 0 after its maximum is reached.
+
What: /sys/bus/usb/devices/.../(hub interface)/portX/usb3_lpm_permit
Date: November 2015
Contact: Lu Baolu <baolu.lu@linux.intel.com>
diff --git a/Documentation/ABI/testing/sysfs-class-usb_role b/Documentation/ABI/testing/sysfs-class-usb_role
new file mode 100644
index 000000000000..3b810a425a52
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-usb_role
@@ -0,0 +1,21 @@
+What: /sys/class/usb_role/
+Date: Jan 2018
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Place in sysfs for USB Role Switches. USB Role Switch is a
+ device that can select the data role (host or device) for USB
+ port.
+
+What: /sys/class/usb_role/<switch>/role
+Date: Jan 2018
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The current role of the switch. This attribute can be used for
+ requesting role swapping with non-USB Type-C ports. With USB
+ Type-C ports, the ABI defined for USB Type-C connector class
+ must be used.
+
+ Valid values:
+ - none
+ - host
+ - device
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index e6d33fa8fed4..5ffe4c4121bd 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4392,6 +4392,64 @@
usbcore.nousb [USB] Disable the USB subsystem
+ usbcore.quirks=
+ [USB] A list of quirk entries to augment the built-in
+ usb core quirk list. List entries are separated by
+ commas. Each entry has the form
+ VendorID:ProductID:Flags. The IDs are 4-digit hex
+ numbers and Flags is a set of letters. Each letter
+ will change the built-in quirk; setting it if it is
+ clear and clearing it if it is set. The letters have
+ the following meanings:
+ a = USB_QUIRK_STRING_FETCH_255 (string
+ descriptors must not be fetched using
+ a 255-byte read);
+ b = USB_QUIRK_RESET_RESUME (device can't resume
+ correctly so reset it instead);
+ c = USB_QUIRK_NO_SET_INTF (device can't handle
+ Set-Interface requests);
+ d = USB_QUIRK_CONFIG_INTF_STRINGS (device can't
+ handle its Configuration or Interface
+ strings);
+ e = USB_QUIRK_RESET (device can't be reset
+ (e.g morph devices), don't use reset);
+ f = USB_QUIRK_HONOR_BNUMINTERFACES (device has
+ more interface descriptions than the
+ bNumInterfaces count, and can't handle
+ talking to these interfaces);
+ g = USB_QUIRK_DELAY_INIT (device needs a pause
+ during initialization, after we read
+ the device descriptor);
+ h = USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL (For
+ high speed and super speed interrupt
+ endpoints, the USB 2.0 and USB 3.0 spec
+ require the interval in microframes (1
+ microframe = 125 microseconds) to be
+ calculated as interval = 2 ^
+ (bInterval-1).
+ Devices with this quirk report their
+ bInterval as the result of this
+ calculation instead of the exponent
+ variable used in the calculation);
+ i = USB_QUIRK_DEVICE_QUALIFIER (device can't
+ handle device_qualifier descriptor
+ requests);
+ j = USB_QUIRK_IGNORE_REMOTE_WAKEUP (device
+ generates spurious wakeup, ignore
+ remote wakeup capability);
+ k = USB_QUIRK_NO_LPM (device can't handle Link
+ Power Management);
+ l = USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL
+ (Device reports its bInterval as linear
+ frames instead of the USB 2.0
+ calculation);
+ m = USB_QUIRK_DISCONNECT_SUSPEND (Device needs
+ to be disconnected before suspend to
+ prevent spurious wakeup);
+ n = USB_QUIRK_DELAY_CTRL_MSG (Device needs a
+ pause after every control message);
+ Example: quirks=0781:5580:bk,0a5c:5834:gij
+
usbhid.mousepoll=
[USBHID] The interval which mice are to be polled at.
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
index 7111fbc82a4e..199cd36fe1ba 100644
--- a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+++ b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
@@ -75,6 +75,29 @@ Example:
};
-----------------------------------------------------------------------
+Hisilicon Hi3798CV200 Peripheral Controller
+
+The Hi3798CV200 Peripheral Controller controls peripherals, queries
+their status, and configures some functions of peripherals.
+
+Required properties:
+- compatible: Should contain "hisilicon,hi3798cv200-perictrl", "syscon"
+ and "simple-mfd".
+- reg: Register address and size of Peripheral Controller.
+- #address-cells: Should be 1.
+- #size-cells: Should be 1.
+
+Examples:
+
+ perictrl: peripheral-controller@8a20000 {
+ compatible = "hisilicon,hi3798cv200-perictrl", "syscon",
+ "simple-mfd";
+ reg = <0x8a20000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+
+-----------------------------------------------------------------------
Hisilicon Hi6220 system controller
Required properties:
diff --git a/Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt b/Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt
index a105494a0fc9..b84a02ebffdf 100644
--- a/Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt
+++ b/Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt
@@ -6,6 +6,10 @@ Required properties:
- #phys-cells: must be 0 (see phy-bindings.txt in this directory)
Optional properties:
+- clocks: a phandle to the clock of this PHY
+- clock-names: must be "phy"
+- resets: a phandle to the reset line of this PHY
+- reset-names: must be "phy"
- phy-supply: see phy-bindings.txt in this directory
diff --git a/Documentation/devicetree/bindings/phy/meson-gxl-usb3-phy.txt b/Documentation/devicetree/bindings/phy/meson-gxl-usb3-phy.txt
new file mode 100644
index 000000000000..114947e1de3d
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/meson-gxl-usb3-phy.txt
@@ -0,0 +1,31 @@
+* Amlogic Meson GXL and GXM USB3 PHY and OTG detection binding
+
+Required properties:
+- compatible: Should be "amlogic,meson-gxl-usb3-phy"
+- #phys-cells: must be 0 (see phy-bindings.txt in this directory)
+- reg: The base address and length of the registers
+- interrupts: the interrupt specifier for the OTG detection
+- clocks: phandles to the clocks for
+ - the USB3 PHY
+ - and peripheral mode/OTG detection
+- clock-names: must contain "phy" and "peripheral"
+- resets: phandle to the reset lines for:
+ - the USB3 PHY and
+ - peripheral mode/OTG detection
+- reset-names: must contain "phy" and "peripheral"
+
+Optional properties:
+- phy-supply: see phy-bindings.txt in this directory
+
+
+Example:
+ usb3_phy0: phy@78080 {
+ compatible = "amlogic,meson-gxl-usb3-phy";
+ #phy-cells = <0>;
+ reg = <0x0 0x78080 0x0 0x20>;
+ interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clkc CLKID_USB_OTG>, <&clkc_AO CLKID_AO_CEC_32K>;
+ clock-names = "phy", "peripheral";
+ resets = <&reset RESET_USB_OTG>, <&reset RESET_USB_OTG>;
+ reset-names = "phy", "peripheral";
+ };
diff --git a/Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt b/Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt
new file mode 100644
index 000000000000..17b0c761370a
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt
@@ -0,0 +1,59 @@
+HiSilicon STB PCIE/SATA/USB3 PHY
+
+Required properties:
+- compatible: Should be "hisilicon,hi3798cv200-combphy"
+- reg: Should be the address space for COMBPHY configuration and state
+ registers in peripheral controller, e.g. PERI_COMBPHY0_CFG and
+ PERI_COMBPHY0_STATE for COMBPHY0 Hi3798CV200 SoC.
+- #phy-cells: Should be 1. The cell number is used to select the phy mode
+ as defined in <dt-bindings/phy/phy.h>.
+- clocks: The phandle to clock provider and clock specifier pair.
+- resets: The phandle to reset controller and reset specifier pair.
+
+Refer to phy/phy-bindings.txt for the generic PHY binding properties.
+
+Optional properties:
+- hisilicon,fixed-mode: If the phy device doesn't support mode select
+ but a fixed mode setting, the property should be present to specify
+ the particular mode.
+- hisilicon,mode-select-bits: If the phy device support mode select,
+ this property should be present to specify the register bits in
+ peripheral controller, as a 3 integers tuple:
+ <register_offset bit_shift bit_mask>.
+
+Notes:
+- Between hisilicon,fixed-mode and hisilicon,mode-select-bits, one and only
+ one of them should be present.
+- The device node should be a child of peripheral controller that contains
+ COMBPHY configuration/state and PERI_CTRL register used to select PHY mode.
+ Refer to arm/hisilicon/hisilicon.txt for the parent peripheral controller
+ bindings.
+
+Examples:
+
+perictrl: peripheral-controller@8a20000 {
+ compatible = "hisilicon,hi3798cv200-perictrl", "syscon",
+ "simple-mfd";
+ reg = <0x8a20000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x8a20000 0x1000>;
+
+ combphy0: phy@850 {
+ compatible = "hisilicon,hi3798cv200-combphy";
+ reg = <0x850 0x8>;
+ #phy-cells = <1>;
+ clocks = <&crg HISTB_COMBPHY0_CLK>;
+ resets = <&crg 0x188 4>;
+ hisilicon,fixed-mode = <PHY_TYPE_USB3>;
+ };
+
+ combphy1: phy@858 {
+ compatible = "hisilicon,hi3798cv200-combphy";
+ reg = <0x858 0x8>;
+ #phy-cells = <1>;
+ clocks = <&crg HISTB_COMBPHY1_CLK>;
+ resets = <&crg 0x188 12>;
+ hisilicon,mode-select-bits = <0x0008 11 (0x3 << 11)>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt
new file mode 100644
index 000000000000..0d70c8341095
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt
@@ -0,0 +1,71 @@
+Device tree bindings for HiSilicon INNO USB2 PHY
+
+Required properties:
+- compatible: Should be one of the following strings:
+ "hisilicon,inno-usb2-phy",
+ "hisilicon,hi3798cv200-usb2-phy".
+- reg: Should be the address space for PHY configuration register in peripheral
+ controller, e.g. PERI_USB0 for USB 2.0 PHY01 on Hi3798CV200 SoC.
+- clocks: The phandle and clock specifier pair for INNO USB2 PHY device
+ reference clock.
+- resets: The phandle and reset specifier pair for INNO USB2 PHY device reset
+ signal.
+- #address-cells: Must be 1.
+- #size-cells: Must be 0.
+
+The INNO USB2 PHY device should be a child node of peripheral controller that
+contains the PHY configuration register, and each device suppports up to 2 PHY
+ports which are represented as child nodes of INNO USB2 PHY device.
+
+Required properties for PHY port node:
+- reg: The PHY port instance number.
+- #phy-cells: Defined by generic PHY bindings. Must be 0.
+- resets: The phandle and reset specifier pair for PHY port reset signal.
+
+Refer to phy/phy-bindings.txt for the generic PHY binding properties
+
+Example:
+
+perictrl: peripheral-controller@8a20000 {
+ compatible = "hisilicon,hi3798cv200-perictrl", "simple-mfd";
+ reg = <0x8a20000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x8a20000 0x1000>;
+
+ usb2_phy1: usb2-phy@120 {
+ compatible = "hisilicon,hi3798cv200-usb2-phy";
+ reg = <0x120 0x4>;
+ clocks = <&crg HISTB_USB2_PHY1_REF_CLK>;
+ resets = <&crg 0xbc 4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb2_phy1_port0: phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ resets = <&crg 0xbc 8>;
+ };
+
+ usb2_phy1_port1: phy@1 {
+ reg = <1>;
+ #phy-cells = <0>;
+ resets = <&crg 0xbc 9>;
+ };
+ };
+
+ usb2_phy2: usb2-phy@124 {
+ compatible = "hisilicon,hi3798cv200-usb2-phy";
+ reg = <0x124 0x4>;
+ clocks = <&crg HISTB_USB2_PHY2_REF_CLK>;
+ resets = <&crg 0xbc 6>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb2_phy2_port0: phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ resets = <&crg 0xbc 10>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/phy/phy-mapphone-mdm6600.txt b/Documentation/devicetree/bindings/phy/phy-mapphone-mdm6600.txt
new file mode 100644
index 000000000000..29427d4f047a
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-mapphone-mdm6600.txt
@@ -0,0 +1,29 @@
+Device tree binding documentation for Motorola Mapphone MDM6600 USB PHY
+
+Required properties:
+- compatible Must be "motorola,mapphone-mdm6600"
+- enable-gpios GPIO to enable the USB PHY
+- power-gpios GPIO to power on the device
+- reset-gpios GPIO to reset the device
+- motorola,mode-gpios Two GPIOs to configure MDM6600 USB start-up mode for
+ normal mode versus USB flashing mode
+- motorola,cmd-gpios Three GPIOs to control the power state of the MDM6600
+- motorola,status-gpios Three GPIOs to read the power state of the MDM6600
+
+Example:
+
+usb-phy {
+ compatible = "motorola,mapphone-mdm6600";
+ enable-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ power-gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio2 17 GPIO_ACTIVE_HIGH>;
+ motorola,mode-gpios = <&gpio5 20 GPIO_ACTIVE_HIGH>,
+ <&gpio5 21 GPIO_ACTIVE_HIGH>;
+ motorola,cmd-gpios = <&gpio4 7 GPIO_ACTIVE_HIGH>,
+ <&gpio4 8 GPIO_ACTIVE_HIGH>,
+ <&gpio5 14 GPIO_ACTIVE_HIGH>;
+ motorola,status-gpios = <&gpio2 20 GPIO_ACTIVE_HIGH>,
+ <&gpio2 21 GPIO_ACTIVE_HIGH>,
+ <&gpio2 23 GPIO_ACTIVE_HIGH>;
+ #phy-cells = <0>;
+};
diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
index 41e09ed2ca70..0d34b2b4a6b7 100644
--- a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
+++ b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
@@ -27,6 +27,10 @@ Optional properties (controller (parent) node):
- reg : offset and length of register shared by multiple ports,
exclude port's private register. It is needed on mt2701
and mt8173, but not on mt2712.
+ - mediatek,src-ref-clk-mhz : frequency of reference clock for slew rate
+ calibrate
+ - mediatek,src-coef : coefficient for slew rate calibrate, depends on
+ SoC process
Required properties (port (child) node):
- reg : address and length of the register set for the port.
diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
index 6ea867e3176f..960da7fcaa9e 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
@@ -14,25 +14,9 @@ Required properties:
- resets : a list of phandle + reset specifier pairs
- reset-names : string reset name, must be:
"uphy", "uphy-pipe", "uphy-tcphy"
- - extcon : extcon specifier for the Power Delivery
-Note, there are 2 type-c phys for RK3399, and they are almost identical, except
-these registers(description below), every register node contains 3 sections:
-offset, enable bit, write mask bit.
- - rockchip,typec-conn-dir : the register of type-c connector direction,
- for type-c phy0, it must be <0xe580 0 16>;
- for type-c phy1, it must be <0xe58c 0 16>;
- - rockchip,usb3tousb2-en : the register of type-c force usb3 to usb2 enable
- control.
- for type-c phy0, it must be <0xe580 3 19>;
- for type-c phy1, it must be <0xe58c 3 19>;
- - rockchip,external-psm : the register of type-c phy external psm clock
- selection.
- for type-c phy0, it must be <0xe588 14 30>;
- for type-c phy1, it must be <0xe594 14 30>;
- - rockchip,pipe-status : the register of type-c phy pipe status.
- for type-c phy0, it must be <0xe5c0 0 0>;
- for type-c phy1, it must be <0xe5c0 16 16>;
+Optional properties:
+ - extcon : extcon specifier for the Power Delivery
Required nodes : a sub-node is required for each port the phy provides.
The sub-node name is used to identify dp or usb3 port,
@@ -43,6 +27,13 @@ Required nodes : a sub-node is required for each port the phy provides.
Required properties (port (child) node):
- #phy-cells : must be 0, See ./phy-bindings.txt for details.
+Deprecated properties, do not use in new device tree sources, these
+properties are determined by the compatible value:
+ - rockchip,typec-conn-dir
+ - rockchip,usb3tousb2-en
+ - rockchip,external-psm
+ - rockchip,pipe-status
+
Example:
tcphy0: phy@ff7c0000 {
compatible = "rockchip,rk3399-typec-phy";
@@ -58,10 +49,6 @@ Example:
<&cru SRST_UPHY0_PIPE_L00>,
<&cru SRST_P_UPHY0_TCPHY>;
reset-names = "uphy", "uphy-pipe", "uphy-tcphy";
- rockchip,typec-conn-dir = <0xe580 0 16>;
- rockchip,usb3tousb2-en = <0xe580 3 19>;
- rockchip,external-psm = <0xe588 14 30>;
- rockchip,pipe-status = <0xe5c0 0 0>;
tcphy0_dp: dp-port {
#phy-cells = <0>;
@@ -86,10 +73,6 @@ Example:
<&cru SRST_UPHY1_PIPE_L00>,
<&cru SRST_P_UPHY1_TCPHY>;
reset-names = "uphy", "uphy-pipe", "uphy-tcphy";
- rockchip,typec-conn-dir = <0xe58c 0 16>;
- rockchip,usb3tousb2-en = <0xe58c 3 19>;
- rockchip,external-psm = <0xe594 14 30>;
- rockchip,pipe-status = <0xe5c0 16 16>;
tcphy1_dp: dp-port {
#phy-cells = <0>;
diff --git a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.txt b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.txt
new file mode 100644
index 000000000000..725ae71ae653
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.txt
@@ -0,0 +1,73 @@
+STMicroelectronics STM32 USB HS PHY controller
+
+The STM32 USBPHYC block contains a dual port High Speed UTMI+ PHY and a UTMI
+switch. It controls PHY configuration and status, and the UTMI+ switch that
+selects either OTG or HOST controller for the second PHY port. It also sets
+PLL configuration.
+
+USBPHYC
+ |_ PLL
+ |
+ |_ PHY port#1 _________________ HOST controller
+ | _ |
+ | / 1|________________|
+ |_ PHY port#2 ----| |________________
+ | \_0| |
+ |_ UTMI switch_______| OTG controller
+
+
+Phy provider node
+=================
+
+Required properties:
+- compatible: must be "st,stm32mp1-usbphyc"
+- reg: address and length of the usb phy control register set
+- clocks: phandle + clock specifier for the PLL phy clock
+- #address-cells: number of address cells for phys sub-nodes, must be <1>
+- #size-cells: number of size cells for phys sub-nodes, must be <0>
+
+Optional properties:
+- assigned-clocks: phandle + clock specifier for the PLL phy clock
+- assigned-clock-parents: the PLL phy clock parent
+- resets: phandle + reset specifier
+
+Required nodes: one sub-node per port the controller provides.
+
+Phy sub-nodes
+==============
+
+Required properties:
+- reg: phy port index
+- phy-supply: phandle to the regulator providing 3V3 power to the PHY,
+ see phy-bindings.txt in the same directory.
+- vdda1v1-supply: phandle to the regulator providing 1V1 power to the PHY
+- vdda1v8-supply: phandle to the regulator providing 1V8 power to the PHY
+- #phy-cells: see phy-bindings.txt in the same directory, must be <0> for PHY
+ port#1 and must be <1> for PHY port#2, to select USB controller
+
+
+Example:
+ usbphyc: usb-phy@5a006000 {
+ compatible = "st,stm32mp1-usbphyc";
+ reg = <0x5a006000 0x1000>;
+ clocks = <&rcc_clk USBPHY_K>;
+ resets = <&rcc_rst USBPHY_R>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usbphyc_port0: usb-phy@0 {
+ reg = <0>;
+ phy-supply = <&vdd_usb>;
+ vdda1v1-supply = <&reg11>;
+ vdda1v8-supply = <&reg18>
+ #phy-cells = <0>;
+ };
+
+ usbphyc_port1: usb-phy@1 {
+ reg = <1>;
+ phy-supply = <&vdd_usb>;
+ vdda1v1-supply = <&reg11>;
+ vdda1v8-supply = <&reg18>
+ #phy-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
index b6a9f2b92bab..dcf1b8f691d5 100644
--- a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
+++ b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
@@ -8,7 +8,8 @@ Required properties:
- compatible: compatible list, contains:
"qcom,ipq8074-qmp-pcie-phy" for PCIe phy on IPQ8074
"qcom,msm8996-qmp-pcie-phy" for 14nm PCIe phy on msm8996,
- "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996.
+ "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996,
+ "qcom,qmp-v3-usb3-phy" for USB3 QMP V3 phy.
- reg: offset and length of register set for PHY's common serdes block.
@@ -25,10 +26,13 @@ Required properties:
- clock-names: "cfg_ahb" for phy config clock,
"aux" for phy aux clock,
"ref" for 19.2 MHz ref clk,
+ "com_aux" for phy common block aux clock,
For "qcom,msm8996-qmp-pcie-phy" must contain:
"aux", "cfg_ahb", "ref".
For "qcom,msm8996-qmp-usb3-phy" must contain:
"aux", "cfg_ahb", "ref".
+ For "qcom,qmp-v3-usb3-phy" must contain:
+ "aux", "cfg_ahb", "ref", "com_aux".
- resets: a list of phandles and reset controller specifier pairs,
one for each entry in reset-names.
diff --git a/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
index aa0fcb05acb3..42c97426836e 100644
--- a/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
+++ b/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
@@ -4,7 +4,10 @@ Qualcomm QUSB2 phy controller
QUSB2 controller supports LS/FS/HS usb connectivity on Qualcomm chipsets.
Required properties:
- - compatible: compatible list, contains "qcom,msm8996-qusb2-phy".
+ - compatible: compatible list, contains
+ "qcom,msm8996-qusb2-phy" for 14nm PHY on msm8996,
+ "qcom,qusb2-v2-phy" for QUSB2 V2 PHY.
+
- reg: offset and length of the PHY register set.
- #phy-cells: must be 0.
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
index 99b651b33110..dbd137c079e2 100644
--- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
@@ -8,6 +8,8 @@ Required properties:
SoC.
"renesas,usb2-phy-r8a7796" if the device is a part of an R8A7796
SoC.
+ "renesas,usb2-phy-r8a77965" if the device is a part of an
+ R8A77965 SoC.
"renesas,usb2-phy-r8a77995" if the device is a part of an
R8A77995 SoC.
"renesas,rcar-gen3-usb2-phy" for a generic R-Car Gen3 compatible device.
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
index f94cea48f6b1..47dd296ecead 100644
--- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
+++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
@@ -11,6 +11,8 @@ Required properties:
SoC.
"renesas,r8a7796-usb3-phy" if the device is a part of an R8A7796
SoC.
+ "renesas,r8a77965-usb3-phy" if the device is a part of an
+ R8A77965 SoC.
"renesas,rcar-gen3-usb3-phy" for a generic R-Car Gen3 compatible
device.
diff --git a/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
index c1ce5a0a652e..07ca4ec4a745 100644
--- a/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
+++ b/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
@@ -11,6 +11,7 @@ Required properties:
* allwinner,sun8i-a33-usb-phy
* allwinner,sun8i-a83t-usb-phy
* allwinner,sun8i-h3-usb-phy
+ * allwinner,sun8i-r40-usb-phy
* allwinner,sun8i-v3s-usb-phy
* allwinner,sun50i-a64-usb-phy
- reg : a list of offset + length pairs
diff --git a/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt b/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt
new file mode 100644
index 000000000000..9a8b631904fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt
@@ -0,0 +1,42 @@
+Amlogic Meson GX DWC3 USB SoC controller
+
+Required properties:
+- compatible: depending on the SoC this should contain one of:
+ * amlogic,meson-axg-dwc3
+ * amlogic,meson-gxl-dwc3
+- clocks: a handle for the "USB general" clock
+- clock-names: must be "usb_general"
+- resets: a handle for the shared "USB OTG" reset line
+- reset-names: must be "usb_otg"
+
+Required child node:
+A child node must exist to represent the core DWC3 IP block. The name of
+the node is not important. The content of the node is defined in dwc3.txt.
+
+PHY documentation is provided in the following places:
+- Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt
+- Documentation/devicetree/bindings/phy/meson-gxl-usb3-phy.txt
+
+Example device nodes:
+ usb0: usb@ff500000 {
+ compatible = "amlogic,meson-axg-dwc3";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ clocks = <&clkc CLKID_USB>;
+ clock-names = "usb_general";
+ resets = <&reset RESET_USB_OTG>;
+ reset-names = "usb_otg";
+
+ dwc3: dwc3@ff500000 {
+ compatible = "snps,dwc3";
+ reg = <0x0 0xff500000 0x0 0x100000>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ dr_mode = "host";
+ maximum-speed = "high-speed";
+ snps,dis_u2_susphy_quirk;
+ phys = <&usb3_phy>, <&usb2_phy0>;
+ phy-names = "usb2-phy", "usb3-phy";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index 44e8bab159ad..0dbd3083e7dd 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -57,6 +57,22 @@ Optional properties:
- snps,quirk-frame-length-adjustment: Value for GFLADJ_30MHZ field of GFLADJ
register for post-silicon frame length adjustment when the
fladj_30mhz_sdbnd signal is invalid or incorrect.
+ - snps,rx-thr-num-pkt-prd: periodic ESS RX packet threshold count - host mode
+ only. Set this and rx-max-burst-prd to a valid,
+ non-zero value 1-16 (DWC_usb31 programming guide
+ section 1.2.4) to enable periodic ESS RX threshold.
+ - snps,rx-max-burst-prd: max periodic ESS RX burst size - host mode only. Set
+ this and rx-thr-num-pkt-prd to a valid, non-zero value
+ 1-16 (DWC_usb31 programming guide section 1.2.4) to
+ enable periodic ESS RX threshold.
+ - snps,tx-thr-num-pkt-prd: periodic ESS TX packet threshold count - host mode
+ only. Set this and tx-max-burst-prd to a valid,
+ non-zero value 1-16 (DWC_usb31 programming guide
+ section 1.2.3) to enable periodic ESS TX threshold.
+ - snps,tx-max-burst-prd: max periodic ESS TX burst size - host mode only. Set
+ this and tx-thr-num-pkt-prd to a valid, non-zero value
+ 1-16 (DWC_usb31 programming guide section 1.2.3) to
+ enable periodic ESS TX threshold.
- <DEPRECATED> tx-fifo-resize: determines if the FIFO *has* to be reallocated.
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
index 88d9f4a4b280..266c2d917a28 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
@@ -32,7 +32,7 @@ Required properties:
"mcu_ck": mcu_bus clock for register access,
"dma_ck": dma_bus clock for data transfer by DMA
- - phys : a list of phandle + phy specifier pairs
+ - phys : see usb-hcd.txt in the current directory
Optional properties:
- wakeup-source : enable USB remote wakeup;
@@ -52,6 +52,9 @@ Optional properties:
See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
- imod-interval-ns: default interrupt moderation interval is 5000ns
+additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
Example:
usb30: usb@11270000 {
compatible = "mediatek,mt8173-xhci";
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
index d589a1ef96a1..3382b5cb471d 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
@@ -17,7 +17,7 @@ Required properties:
- clock-names : must contain "sys_ck" for clock of controller,
the following clocks are optional:
"ref_ck", "mcu_ck" and "dam_ck";
- - phys : a list of phandle + phy specifier pairs
+ - phys : see usb-hcd.txt in the current directory
- dr_mode : should be one of "host", "peripheral" or "otg",
refer to usb/generic.txt
@@ -53,6 +53,9 @@ Optional properties:
- mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
bit1 for u3port1, ... etc;
+additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
Sub-nodes:
The xhci should be added as subnode to mtu3 as shown in the following example
if host mode is enabled. The DT binding details of xhci can be found in:
diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt
index 3efde12b5d68..0f1b75386207 100644
--- a/Documentation/devicetree/bindings/usb/usb-ehci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt
@@ -16,10 +16,12 @@ Optional properties:
- has-transaction-translator : boolean, set this if EHCI have a Transaction
Translator built into the root hub.
- clocks : a list of phandle + clock specifier pairs
- - phys : phandle + phy specifier pair
- - phy-names : "usb"
+ - phys : see usb-hcd.txt in the current directory
- resets : phandle + reset specifier pair
+additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
Example (Sequoia 440EPx):
ehci@e0000300 {
compatible = "ibm,usb-ehci-440epx", "usb-ehci";
diff --git a/Documentation/devicetree/bindings/usb/usb-hcd.txt b/Documentation/devicetree/bindings/usb/usb-hcd.txt
new file mode 100644
index 000000000000..50529b838c9c
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/usb-hcd.txt
@@ -0,0 +1,9 @@
+Generic USB HCD (Host Controller Device) Properties
+
+Optional properties:
+- phys: a list of all USB PHYs on this HCD
+
+Example:
+ &usb1 {
+ phys = <&usb2_phy1>, <&usb3_phy1>;
+ };
diff --git a/Documentation/devicetree/bindings/usb/usb-ohci.txt b/Documentation/devicetree/bindings/usb/usb-ohci.txt
index 09e70c875bc6..a8d2103d1f3d 100644
--- a/Documentation/devicetree/bindings/usb/usb-ohci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-ohci.txt
@@ -13,10 +13,12 @@ Optional properties:
- remote-wakeup-connected: remote wakeup is wired on the platform
- num-ports : u32, to override the detected port count
- clocks : a list of phandle + clock specifier pairs
-- phys : phandle + phy specifier pair
-- phy-names : "usb"
+- phys : see usb-hcd.txt in the current directory
- resets : a list of phandle + reset specifier pairs
+additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
Example:
ohci0: usb@1c14400 {
diff --git a/Documentation/devicetree/bindings/usb/usb-uhci.txt b/Documentation/devicetree/bindings/usb/usb-uhci.txt
index 298133416c97..cc2e6f7d602e 100644
--- a/Documentation/devicetree/bindings/usb/usb-uhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-uhci.txt
@@ -6,6 +6,9 @@ Required properties:
- reg : Should contain 1 register ranges(address and length)
- interrupts : UHCI controller interrupt
+additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
Example:
uhci@d8007b00 {
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index 1651483a7048..c4c00dff4b56 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -33,6 +33,11 @@ Optional properties:
- usb3-lpm-capable: determines if platform is USB3 LPM capable
- quirk-broken-port-ped: set if the controller has broken port disable mechanism
- imod-interval-ns: default interrupt moderation interval is 5000ns
+ - phys : see usb-hcd.txt in the current directory
+
+additionally the properties from usb-hcd.txt (in the current directory) are
+supported.
+
Example:
usb@f0931000 {
diff --git a/Documentation/driver-api/device_connection.rst b/Documentation/driver-api/device_connection.rst
new file mode 100644
index 000000000000..affbc5566ab0
--- /dev/null
+++ b/Documentation/driver-api/device_connection.rst
@@ -0,0 +1,43 @@
+==================
+Device connections
+==================
+
+Introduction
+------------
+
+Devices often have connections to other devices that are outside of the direct
+child/parent relationship. A serial or network communication controller, which
+could be a PCI device, may need to be able to get a reference to its PHY
+component, which could be attached for example to the I2C bus. Some device
+drivers need to be able to control the clocks or the GPIOs for their devices,
+and so on.
+
+Device connections are generic descriptions of any type of connection between
+two separate devices.
+
+Device connections alone do not create a dependency between the two devices.
+They are only descriptions which are not tied to either of the devices directly.
+A dependency between the two devices exists only if one of the two endpoint
+devices requests a reference to the other. The descriptions themselves can be
+defined in firmware (not yet supported) or they can be built-in.
+
+Usage
+-----
+
+Device connections should exist before device ``->probe`` callback is called for
+either endpoint device in the description. If the connections are defined in
+firmware, this is not a problem. It should be considered if the connection
+descriptions are "built-in", and need to be added separately.
+
+The connection description consists of the names of the two devices with the
+connection, i.e. the endpoints, and unique identifier for the connection which
+is needed if there are multiple connections between the two devices.
+
+After a description exists, the devices in it can request reference to the other
+endpoint device, or they can request the description itself.
+
+API
+---
+
+.. kernel-doc:: drivers/base/devcon.c
+ : functions: device_connection_find_match device_connection_find device_connection_add device_connection_remove
diff --git a/Documentation/driver-api/usb/typec.rst b/Documentation/driver-api/usb/typec.rst
index 8a7249f2ff04..feb31946490b 100644
--- a/Documentation/driver-api/usb/typec.rst
+++ b/Documentation/driver-api/usb/typec.rst
@@ -61,7 +61,7 @@ Registering the ports
The port drivers will describe every Type-C port they control with struct
typec_capability data structure, and register them with the following API:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_register_port typec_unregister_port
When registering the ports, the prefer_role member in struct typec_capability
@@ -80,7 +80,7 @@ typec_partner_desc. The class copies the details of the partner during
registration. The class offers the following API for registering/unregistering
partners.
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_register_partner typec_unregister_partner
The class will provide a handle to struct typec_partner if the registration was
@@ -92,7 +92,7 @@ should include handle to struct usb_pd_identity instance. The class will then
create a sysfs directory for the identity under the partner device. The result
of Discover Identity command can then be reported with the following API:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_partner_set_identity
Registering Cables
@@ -113,7 +113,7 @@ typec_cable_desc and about a plug in struct typec_plug_desc. The class copies
the details during registration. The class offers the following API for
registering/unregistering cables and their plugs:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_register_cable typec_unregister_cable typec_register_plug typec_unregister_plug
The class will provide a handle to struct typec_cable and struct typec_plug if
@@ -125,7 +125,7 @@ include handle to struct usb_pd_identity instance. The class will then create a
sysfs directory for the identity under the cable device. The result of Discover
Identity command can then be reported with the following API:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_cable_set_identity
Notifications
@@ -135,7 +135,7 @@ When the partner has executed a role change, or when the default roles change
during connection of a partner or cable, the port driver must use the following
APIs to report it to the class:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_set_data_role typec_set_pwr_role typec_set_vconn_role typec_set_pwr_opmode
Alternate Modes
@@ -150,7 +150,7 @@ and struct typec_altmode_desc which is a container for all the supported modes.
Ports that support Alternate Modes need to register each SVID they support with
the following API:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_port_register_altmode
If a partner or cable plug provides a list of SVIDs as response to USB Power
@@ -159,12 +159,12 @@ registered.
API for the partners:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_partner_register_altmode
API for the Cable Plugs:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_plug_register_altmode
So ports, partners and cable plugs will register the alternate modes with their
@@ -172,11 +172,62 @@ own functions, but the registration will always return a handle to struct
typec_altmode on success, or NULL. The unregistration will happen with the same
function:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_unregister_altmode
If a partner or cable plug enters or exits a mode, the port driver needs to
notify the class with the following API:
-.. kernel-doc:: drivers/usb/typec/typec.c
+.. kernel-doc:: drivers/usb/typec/class.c
:functions: typec_altmode_update_active
+
+Multiplexer/DeMultiplexer Switches
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+USB Type-C connectors may have one or more mux/demux switches behind them. Since
+the plugs can be inserted right-side-up or upside-down, a switch is needed to
+route the correct data pairs from the connector to the USB controllers. If
+Alternate or Accessory Modes are supported, another switch is needed that can
+route the pins on the connector to some other component besides USB. USB Type-C
+Connector Class supplies an API for registering those switches.
+
+.. kernel-doc:: drivers/usb/typec/mux.c
+ :functions: typec_switch_register typec_switch_unregister typec_mux_register typec_mux_unregister
+
+In most cases the same physical mux will handle both the orientation and mode.
+However, as the port drivers will be responsible for the orientation, and the
+alternate mode drivers for the mode, the two are always separated into their
+own logical components: "mux" for the mode and "switch" for the orientation.
+
+When a port is registered, USB Type-C Connector Class requests both the mux and
+the switch for the port. The drivers can then use the following API for
+controlling them:
+
+.. kernel-doc:: drivers/usb/typec/class.c
+ :functions: typec_set_orientation typec_set_mode
+
+If the connector is dual-role capable, there may also be a switch for the data
+role. USB Type-C Connector Class does not supply separate API for them. The
+port drivers can use USB Role Class API with those.
+
+Illustration of the muxes behind a connector that supports an alternate mode:
+
+ ------------------------
+ | Connector |
+ ------------------------
+ | |
+ ------------------------
+ \ Orientation /
+ --------------------
+ |
+ --------------------
+ / Mode \
+ ------------------------
+ / \
+ ------------------------ --------------------
+ | Alt Mode | / USB Role \
+ ------------------------ ------------------------
+ / \
+ ------------------------ ------------------------
+ | USB Host | | USB Device |
+ ------------------------ ------------------------