[01/12] Documentation: add BCM6328 pincontroller binding documentation

diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,bcm6328-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/brcm,bcm6328-pinctrl.yaml
new file mode 100644
index 000000000000..2012cb1dbf5c
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm6328-pinctrl.yaml
@@ -0,0 +1,161 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/brcm,bcm6328-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM6328 pin controller
+
+maintainers:
+  - Álvaro Fernández Rojas <noltari@gmail.com>
+  - Jonas Gorski <jonas.gorski@gmail.com>
+
+description: |+
+  The pin controller node should be the child of a syscon node.
+
+  Refer to the bindings described in
+  Documentation/devicetree/bindings/mfd/syscon.yaml
+
+properties:
+  compatible:
+    const: brcm,bcm6328-pinctrl
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    description:
+      Specifies the pin number and flags, as defined in
+      include/dt-bindings/gpio/gpio.h
+    const: 2
+
+  interrupts-extended:
+    description:
+      One interrupt per each of the 4 GPIO ports supported by the controller,
+      sorted by port number ascending order.
+    minItems: 4
+    maxItems: 4
+
+patternProperties:
+  '^.*$':
+    if:
+      type: object
+    then:
+      properties:
+        function:
+          $ref: "/schemas/types.yaml#/definitions/string"
+          enum: [ serial_led_data, serial_led_clk, inet_act_led, pcie_clkreq,
+                  led, ephy0_act_led, ephy1_act_led, ephy2_act_led,
+                  ephy3_act_led, hsspi_cs1, usb_device_port, usb_host_port ]
+
+        pins:
+          $ref: "/schemas/types.yaml#/definitions/string"
+          enum: [ gpio6, gpio7, gpio11, gpio16, gpio17, gpio18, gpio19,
+                  gpio20, gpio25, gpio26, gpio27, gpio28, hsspi_cs1,
+                  usb_port1 ]
+
+required:
+  - compatible
+  - gpio-controller
+  - '#gpio-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    gpio@10000080 {
+      compatible = "syscon", "simple-mfd";
+      reg = <0x10000080 0x80>;
+
+      pinctrl: pinctrl {
+        compatible = "brcm,bcm6328-pinctrl";
+
+        gpio-controller;
+        #gpio-cells = <2>;
+
+        interrupts-extended = <&ext_intc 3 0>,
+                              <&ext_intc 2 0>,
+                              <&ext_intc 1 0>,
+                              <&ext_intc 0 0>;
+        interrupt-names = "gpio12",
+                          "gpio15",
+                          "gpio23",
+                          "gpio24";
+
+        pinctrl_serial_led: serial_led {
+          pinctrl_serial_led_data: serial_led_data {
+            function = "serial_led_data";
+            pins = "gpio6";
+          };
+
+          pinctrl_serial_led_clk: serial_led_clk {
+            function = "serial_led_clk";
+            pins = "gpio7";
+          };
+        };
+
+        pinctrl_inet_act_led: inet_act_led {
+          function = "inet_act_led";
+          pins = "gpio11";
+        };
+
+        pinctrl_pcie_clkreq: pcie_clkreq {
+          function = "pcie_clkreq";
+          pins = "gpio16";
+        };
+
+        pinctrl_ephy0_spd_led: ephy0_spd_led {
+          function = "led";
+          pins = "gpio17";
+        };
+
+        pinctrl_ephy1_spd_led: ephy1_spd_led {
+          function = "led";
+          pins = "gpio18";
+        };
+
+        pinctrl_ephy2_spd_led: ephy2_spd_led {
+          function = "led";
+          pins = "gpio19";
+        };
+
+        pinctrl_ephy3_spd_led: ephy3_spd_led {
+          function = "led";
+          pins = "gpio20";
+        };
+
+        pinctrl_ephy0_act_led: ephy0_act_led {
+          function = "ephy0_act_led";
+          pins = "gpio25";
+        };
+
+        pinctrl_ephy1_act_led: ephy1_act_led {
+          function = "ephy1_act_led";
+          pins = "gpio26";
+        };
+
+        pinctrl_ephy2_act_led: ephy2_act_led {
+          function = "ephy2_act_led";
+          pins = "gpio27";
+        };
+
+        pinctrl_ephy3_act_led: ephy3_act_led {
+          function = "ephy3_act_led";
+          pins = "gpio28";
+        };
+
+        pinctrl_hsspi_cs1: hsspi_cs1 {
+          function = "hsspi_cs1";
+          pins = "hsspi_cs1";
+        };
+
+        pinctrl_usb_port1_device: usb_port1_device {
+          function = "usb_device_port";
+          pins = "usb_port1";
+        };
+
+        pinctrl_usb_port1_host: usb_port1_host {
+          function = "usb_host_port";
+          pins = "usb_port1";
+        };
+      };
+    };