[PATCH 0/2] usb: misc: Add support for Microchip USB5744

[PATCH 0/2] usb: misc: Add support for Microchip USB5744

[Michal Simek]

Hi,

the series is adding basic support for this USB hub. The key part is
running reset over GPIO line and when i2c is connected it is necessary to
send command to boot the hub. This chip is available on Xilinx
zcu100/Ultra96 v1 board.

Thanks,
Michal


Piyush Mehta (2):
  dt-bindings: usb: misc: Add binding for Microchip usb5744 hub
  usb: misc: usb5744: Add support for USB hub controller

 .../bindings/usb/microchip,usb5744.yaml       |  56 +++++++++
 MAINTAINERS                                   |   2 +
 drivers/usb/misc/Kconfig                      |   9 ++
 drivers/usb/misc/Makefile                     |   1 +
 drivers/usb/misc/usb5744.c                    | 115 ++++++++++++++++++
 5 files changed, 183 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
 create mode 100644 drivers/usb/misc/usb5744.c

-- 
2.30.0

[PATCH 1/2] dt-bindings: usb: misc: Add binding for Microchip usb5744 hub

[Michal Simek]

From: Piyush Mehta <piyush.mehta@xilinx.com>

Added dt binding for usb5744 driver.

Signed-off-by: Piyush Mehta <piyush.mehta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

 .../bindings/usb/microchip,usb5744.yaml       | 56 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/microchip,usb5744.yaml

diff --git a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
new file mode 100644
index 000000000000..fe222f6db81d
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/microchip,usb5744.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Bindings for the Microchip USB5744 4-port Hub Controller
+
+description:
+  Microchip’s USB5744 SmartHub™ IC is a 4 port, SuperSpeed (SS)/Hi-Speed (HS),
+  low power, low pin count configurable and fully compliant with the USB 3.1
+  Gen 1 specification. The USB5744 also supports Full Speed (FS) and Low Speed
+  (LS) USB signaling, offering complete coverage of all defined USB operating
+  speeds. The new SuperSpeed hubs operate in parallel with the USB 2.0
+  controller, so 5 Gbps SuperSpeed data transfers are not affected by slower
+  USB 2.0 traffic.
+
+maintainers:
+  - Piyush Mehta <piyush.mehta@xilinx.com>
+  - Michal Simek <michal.simek@xilinx.com>
+
+properties:
+  compatible:
+    const: microchip,usb5744
+
+  reg:
+    maxItems: 1
+    description: |
+      Specifies the i2c slave address, it is required and should be 0x2d
+      if I2C is used.
+
+  reset-gpios:
+    maxItems: 1
+    description:
+      The phandle and specifier for the GPIO that controls the RESET line of
+      USB hub.
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        usb5744@2d {
+            compatible = "microchip,usb5744";
+            reg = <0x2d>;
+            reset-gpios = <&gpio 44 GPIO_ACTIVE_HIGH>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 41e8d3d7faec..7439471b5d37 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2697,6 +2697,7 @@ W:	http://wiki.xilinx.com
 T:	git https://github.com/Xilinx/linux-xlnx.git
 F:	Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
 F:	Documentation/devicetree/bindings/i2c/xlnx,xps-iic-2.00.a.yaml
+F:	Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
 F:	arch/arm/mach-zynq/
 F:	drivers/block/xsysace.c
 F:	drivers/clocksource/timer-cadence-ttc.c
-- 
2.30.0