On Tue, Jan 22, 2013 at 10:54 AM, Rajendra Nayak <rnayak@xxxxxx> wrote:
> On Tuesday 22 January 2013 01:52 PM, Linus Walleij wrote:
>>
>> In the Nomadik I had a similar situation with a GPIO used for the
>> ethernet IRQ. I put the GPIO number in a special board-specific
>> node and added this to the machine,
>
> Thanks Linus. Are there any bindings already available on how these
> special board-specific nodes can be defined in the dts files?
No generic bindings as they are per definition board-specific.
So in the Nomadik case it looks like this:
/* Custom board node with GPIO pins to active etc */
usb-s8815 {
/* The S8815 is using this very GPIO pin for the SMSC91x IRQs */
ethernet-gpio {
gpios = <&gpio3 19 0x1>;
interrupts = <19 0x1>;
interrupt-parent = <&gpio3>;
};
/* This will bias the MMC/SD card detect line */
mmcsd-gpio {
gpios = <&gpio3 16 0x1>;
};
};
First I added custom nodes to the IP blocks, but it was no good idea
as it's not generic for that driver at all, just a board pecularity.
> Are there any using some such in the mainline already?
I just sent a pull request for the Nomadik example but I don't
know about any others.
Yours,
Linus Walleij
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