Messages in this thread Patch in this message | | | From | Andrew Jeffery <> | Subject | [PATCH v2 4/8] gpio: dt-bindings: Add documentation for Aspeed GPIO controllers | Date | Fri, 19 Aug 2016 22:14:10 +0930 |
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Signed-off-by: Andrew Jeffery <andrew@aj.id.au> ---
Since v1:
Rob: I haven't added your Acked-by here as I've made the following changes and wanted to get your input:
* Remove interrupt-controller as an optional property * Defer to interrupt-controller bindings document for sub-node properties
I had a discussion with Joel about whether the interrupt-controller capability should be optional and the conclusion was that it should always be configured by the driver. This makes an optional interrupt-controller property feel redundant (and possibly inaccurate if left out) so I've removed it.
.../devicetree/bindings/gpio/gpio-aspeed.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt new file mode 100644 index 000000000000..a5ad1eb93ce0 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt @@ -0,0 +1,34 @@ +Aspeed GPIO controller Device Tree Bindings +------------------------------------------- + +Required properties: +- #gpio-cells : Should be two + - First cell is the GPIO line number + - Second cell is used to specify optional + parameters (unused) + +- compatible : Either "aspeed,ast2400-gpio" or "aspeed,ast2500-gpio" + +- reg : Address and length of the register set for the device +- gpio-controller : Marks the device node as a GPIO controller. +- interrupts : Interrupt specifier (see interrupt bindings for + details) + +Optional properties: + +- interrupt-parent : The parent interrupt controller, optional if inherited + +The gpio and interrupt properties are further described in their respective +bindings documentation: + +- Documentation/devicetree/bindings/gpio/gpio.txt +- Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + + Example: + gpio@1e780000 { + #gpio-cells = <2>; + compatible = "aspeed,ast2400-gpio" + gpio-controller; + interrupts = <20>; + reg = <0x1e780000 0x1000>; + }; -- 2.9.3
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