Re: [PATCH 1/2] DT: Add documentation for gpio-rt2880

[John Crispin <blogic@xxxxxxxxxxx>]

hi linus, ralf

please ignore these 2 patches, i sent an old version. i will resend in
a bit with the 2nd gpio driver and the ARCH_REQUIRE_GPIOLIB patch added.

	John

On 09/10/2014 22:07, John Crispin wrote:
> Describe gpio-rt2880 binding.
> 
> Signed-off-by: John Crispin <blogic@xxxxxxxxxxx> Cc:
> linux-mips@xxxxxxxxxxxxxx Cc: devicetree@xxxxxxxxxxxxxxx Cc:
> linux-gpio@xxxxxxxxxxxxxxx --- 
> .../devicetree/bindings/gpio/gpio-rt2880.txt       |   40
> ++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode
> 100644 Documentation/devicetree/bindings/gpio/gpio-rt2880.txt
> 
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-rt2880.txt
> b/Documentation/devicetree/bindings/gpio/gpio-rt2880.txt new file
> mode 100644 index 0000000..b4acf02 --- /dev/null +++
> b/Documentation/devicetree/bindings/gpio/gpio-rt2880.txt @@ -0,0
> +1,40 @@ +Ralink SoC GPIO controller bindings + +Required
> properties: +- compatible: +  - "ralink,rt2880-gpio" for Ralink
> controllers +- #gpio-cells : Should be two. +  - first cell is the
> pin number +  - second cell is used to specify optional parameters
> (unused) +- gpio-controller : Marks the device node as a GPIO
> controller +- reg : Physical base address and length of the
> controller's registers +- interrupt-parent: phandle to the INTC
> device node +- interrupts : Specify the INTC interrupt number +-
> ralink,num-gpios : Specify the number of GPIOs +-
> ralink,register-map : The register layout depends on the GPIO bank
> and actual +		SoC type. Register offsets need to be in this order. 
> +		[ INT, EDGE, RENA, FENA, DATA, DIR, POL, SET, RESET, TOGGLE ] + 
> +Optional properties: +- ralink,gpio-base : Specify the GPIO chips
> base number + +Example: + +	gpio0: gpio@600 { +		compatible =
> "ralink,rt5350-gpio", "ralink,rt2880-gpio"; + +		#gpio-cells =
> <2>; +		gpio-controller; + +		reg = <0x600 0x34>; + +
> interrupt-parent = <&intc>; +		interrupts = <6>; + +
> ralink,gpio-base = <0>; +		ralink,num-gpios = <24>; +
> ralink,register-map = [ 00 04 08 0c +				20 24 28 2c +				30 34 ]; 
> + +	};
> 
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