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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/gpio/gpio_oxnas.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio_oxnas.txt | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio_oxnas.txt b/Documentation/devicetree/bindings/gpio/gpio_oxnas.txt new file mode 100644 index 000000000..966514744 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio_oxnas.txt @@ -0,0 +1,47 @@ +* Oxford Semiconductor OXNAS SoC GPIO Controller + +Please refer to gpio.txt for generic information regarding GPIO bindings. + +Required properties: + - compatible: "oxsemi,ox810se-gpio" or "oxsemi,ox820-gpio" + - reg: Base address and length for the device. + - interrupts: The port interrupt shared by all pins. + - gpio-controller: Marks the port as GPIO controller. + - #gpio-cells: Two. The first cell is the pin number and + the second cell is used to specify the gpio polarity as defined in + defined in <dt-bindings/gpio/gpio.h>: + 0 = GPIO_ACTIVE_HIGH + 1 = GPIO_ACTIVE_LOW + - interrupt-controller: Marks the device node as an interrupt controller. + - #interrupt-cells: Two. The first cell is the GPIO number and second cell + is used to specify the trigger type as defined in + <dt-bindings/interrupt-controller/irq.h>: + IRQ_TYPE_EDGE_RISING + IRQ_TYPE_EDGE_FALLING + IRQ_TYPE_EDGE_BOTH + - gpio-ranges: Interaction with the PINCTRL subsystem, it also specifies the + gpio base and count, should be in the format of numeric-gpio-range as + specified in the gpio.txt file. + +Example: + +gpio0: gpio@0 { + compatible = "oxsemi,ox810se-gpio"; + reg = <0x000000 0x100000>; + interrupts = <21>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + gpio-ranges = <&pinctrl 0 0 32>; +}; + +keys { + ... + + button-esc { + label = "ESC"; + linux,code = <1>; + gpios = <&gpio0 12 0>; + }; +}; |