dt-bindings: pinctrl: Add bindings for Ingenic X1830.

Add the pinctrl bindings for the X1830 Soc from Ingenic.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1576426864-35348-6-git-send-email-zhouyanjie@wanyeetech.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt

@@ -10,9 +10,9 @@ GPIO port configuration registers and it is typical to refer to pins using the
 naming scheme "PxN" where x is a character identifying the GPIO port with
 which the pin is associated and N is an integer from 0 to 31 identifying the
 pin within that GPIO port. For example PA0 is the first pin in GPIO port A, and
-PB31 is the last pin in GPIO port B. The jz4740 and the x1000 contains 4 GPIO
-ports, PA to PD, for a total of 128 pins. The jz4760, the jz4770 and the jz4780
-contains 6 GPIO ports, PA to PF, for a total of 192 pins.
+PB31 is the last pin in GPIO port B. The jz4740, the x1000 and the x1830
+contains 4 GPIO ports, PA to PD, for a total of 128 pins. The jz4760, the
+jz4770 and the jz4780 contains 6 GPIO ports, PA to PF, for a total of 192 pins.
 
 
 Required properties:
@@ -28,6 +28,7 @@ Required properties:
     - "ingenic,x1000-pinctrl"
     - "ingenic,x1000e-pinctrl"
     - "ingenic,x1500-pinctrl"
+    - "ingenic,x1830-pinctrl"
  - reg: Address range of the pinctrl registers.
 
 
@@ -40,6 +41,7 @@ Required properties for sub-nodes (GPIO chips):
     - "ingenic,jz4770-gpio"
     - "ingenic,jz4780-gpio"
     - "ingenic,x1000-gpio"
+    - "ingenic,x1830-gpio"
  - reg: The GPIO bank number.
  - interrupt-controller: Marks the device node as an interrupt controller.
  - interrupts: Interrupt specifier for the controllers interrupt.