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diff --git a/dts/Bindings/gpio/gpio-tz1090.txt b/dts/Bindings/gpio/gpio-tz1090.txt
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-ImgTec TZ1090 GPIO Controller
-
-Required properties:
-- compatible: Compatible property value should be "img,tz1090-gpio".
-
-- reg: Physical base address of the controller and length of memory mapped
- region.
-
-- #address-cells: Should be 1 (for bank subnodes)
-
-- #size-cells: Should be 0 (for bank subnodes)
-
-- Each bank of GPIOs should have a subnode to represent it.
-
- Bank subnode required properties:
- - reg: Index of bank in the range 0 to 2.
-
- - gpio-controller: Specifies that the node is a gpio controller.
-
- - #gpio-cells: Should be 2. The syntax of the gpio specifier used by client
- nodes should have the following values.
- <[phandle of the gpio controller node]
- [gpio number within the gpio bank]
- [gpio flags]>
-
- Values for gpio specifier:
- - GPIO number: a value in the range 0 to 29.
- - GPIO flags: bit field of flags, as defined in <dt-bindings/gpio/gpio.h>.
- Only the following flags are supported:
- GPIO_ACTIVE_HIGH
- GPIO_ACTIVE_LOW
-
- Bank subnode optional properties:
- - gpio-ranges: Mapping to pin controller pins (as described in
- Documentation/devicetree/bindings/gpio/gpio.txt)
-
- - interrupts: Interrupt for the entire bank
-
- - interrupt-controller: Specifies that the node is an interrupt controller
-
- - #interrupt-cells: Should be 2. The syntax of the interrupt specifier used by
- client nodes should have the following values.
- <[phandle of the interurupt controller]
- [gpio number within the gpio bank]
- [irq flags]>
-
- Values for irq specifier:
- - GPIO number: a value in the range 0 to 29
- - IRQ flags: value to describe edge and level triggering, as defined in
- <dt-bindings/interrupt-controller/irq.h>. Only the following flags are
- supported:
- IRQ_TYPE_EDGE_RISING
- IRQ_TYPE_EDGE_FALLING
- IRQ_TYPE_EDGE_BOTH
- IRQ_TYPE_LEVEL_HIGH
- IRQ_TYPE_LEVEL_LOW
-
-
-
-Example:
-
- gpios: gpio-controller@2005800 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "img,tz1090-gpio";
- reg = <0x02005800 0x90>;
-
- /* bank 0 with an interrupt */
- gpios0: bank@0 {
- #gpio-cells = <2>;
- #interrupt-cells = <2>;
- reg = <0>;
- interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
- gpio-controller;
- gpio-ranges = <&pinctrl 0 0 30>;
- interrupt-controller;
- };
-
- /* bank 2 without interrupt */
- gpios2: bank@2 {
- #gpio-cells = <2>;
- reg = <2>;
- gpio-controller;
- gpio-ranges = <&pinctrl 0 60 30>;
- };
- };
-
-