Merge tag 'usb-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

USB: Changes for v5.4 merge window

With only 45 non-merge commits, we have a small merge window from the
Gadget perspective.

The biggest change here is the addition of the Cadence USB3 DRD
Driver. All other changes are small, non-critical fixes or smaller new
features like the improvement to BESL handling in dwc3.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

* tag 'usb-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (45 commits)
  usb: gadget: net2280: Add workaround for AB chip Errata 11
  usb: gadget: net2280: Move all "ll" registers in one structure
  usb: dwc3: gadget: Workaround Mirosoft's BESL check
  usb:cdns3 Fix for stuck packets in on-chip OUT buffer.
  usb: cdns3: Add Cadence USB3 DRD Driver
  usb: common: Simplify usb_decode_get_set_descriptor function.
  usb: common: Patch simplify usb_decode_set_clear_feature function.
  usb: common: Separated decoding functions from dwc3 driver.
  dt-bindings: add binding for USBSS-DRD controller.
  usb: gadget: composite: Set recommended BESL values
  usb: dwc3: gadget: Set BESL config parameter
  usb: dwc3: Separate field holding multiple properties
  usb: gadget: Export recommended BESL values
  usb: phy: phy-fsl-usb: Make structure fsl_otg_initdata constant
  usb: udc: lpc32xx: silence fall-through warning
  usb: dwc3: meson-g12a: fix suspend resume regulator unbalanced disables
  usb: udc: lpc32xx: remove set but not used 3 variables
  usb: gadget: udc: core: Fix segfault if udc_bind_to_driver() for pending driver fails
  usb: dwc3: st: Add of_dev_put() in probe function
  usb: dwc3: st: Add of_node_put() before return in probe function
  ...

1 files changed, 45 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/usb/cdns-usb3.txt b/Documentation/devicetree/bindings/usb/cdns-usb3.txt
new file mode 100644
index 000000000000..b7dc606d37b5
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/cdns-usb3.txt
@@ -0,0 +1,45 @@
+Binding for the Cadence USBSS-DRD controller
+
+Required properties:
+ - reg: Physical base address and size of the controller's register areas.
+	 Controller has 3 different regions:
+	 - HOST registers area
+	 - DEVICE registers area
+	 - OTG/DRD registers area
+ - reg-names - register memory area names:
+	"xhci" - for HOST registers space
+	"dev" - for DEVICE registers space
+	"otg" - for OTG/DRD registers space
+ - compatible: Should contain: "cdns,usb3"
+ - interrupts: Interrupts used by cdns3 controller:
+	"host" - interrupt used by XHCI driver.
+	"peripheral" - interrupt used by device driver
+	"otg" - interrupt used by DRD/OTG  part of driver
+
+Optional properties:
+ - maximum-speed : valid arguments are "super-speed", "high-speed" and
+                   "full-speed"; refer to usb/generic.txt
+ - dr_mode: Should be one of "host", "peripheral" or "otg".
+ - phys: reference to the USB PHY
+ - phy-names: from the *Generic PHY* bindings;
+	Supported names are:
+	- cdns3,usb2-phy
+	- cdns3,usb3-phy
+
+ - cdns,on-chip-buff-size : size of memory intended as internal memory for endpoints
+	buffers expressed in KB
+
+Example:
+	usb@f3000000 {
+		compatible = "cdns,usb3";
+		interrupts = <GIC_USB_IRQ 7 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_USB_IRQ  7 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_USB_IRQ  8 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "host", "peripheral", "otg";
+		reg = <0xf3000000 0x10000>,	/* memory area for HOST registers */
+			<0xf3010000 0x10000>,	/* memory area for DEVICE registers */
+			<0xf3020000 0x10000>;	/* memory area for OTG/DRD registers */
+		reg-names = "xhci", "dev", "otg";
+		phys = <&usb2_phy>, <&usb3_phy>;
+		phy-names = "cdns3,usb2-phy", "cnds3,usb3-phy";
+	};