[PATCH v2 RESEND 2/3] Documentation: gpio: Add APM X-Gene standby GPIO controller DTS binding

[Y Vo]

Yes, exactly 6 interrupts. As I describe before:
- There are 22 GPIO_DSs.
- Only 6 GPIO_DSs from 0x08..0xD which supports interrupts

Regards,
Y

On Tue, Jan 13, 2015 at 4:25 PM, Linus Walleij <linus.walleij at linaro.org> wrote:
> On Wed, Dec 17, 2014 at 6:10 AM, Y Vo <yvo at apm.com> wrote:
>> Documentation for APM X-Gene standby GPIO controller DTS binding.
>>
>> Signed-off-by: Y Vo <yvo at apm.com>
>> ---
>>  .../devicetree/bindings/gpio/gpio-xgene-sb.txt     | 31 ++++++++++++++++++++++
>>  1 file changed, 31 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt
>>
>> diff --git a/Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt b/Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt
>> new file mode 100644
>> index 0000000..3215e4d
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt
>> @@ -0,0 +1,31 @@
>> +APM X-Gene Standby GPIO controller bindings
>> +
>> +This is a gpio controller in standby domain.
>> +
>> +There are 20 GPIO pins from 0..21. There is no GPIO_DS14 and GPIO_DS15.
>> +Only GPIO_DS8..GPIO_DS13 support interrupt. IRQ mapping 0x28..0x2d.
>> +
>> +Required properties:
>> +- compatible: "apm,xgene-gpio-sb" for X-Gene Standby GPIO controller
>> +- reg: Physical base address and size of the controller's registers
>> +- #gpio-cells: Should be two.
>> +       - first cell is the pin number
>> +       - second cell is used to specify the gpio polarity:
>> +               0 = active high
>> +               1 = active low
>> +- gpio-controller: Marks the device node as a GPIO controller.
>> +- interrupts: Shall contains the interrupts.
>
> From the example it seems it must contain exactly 6 interrupts?
> Then state this.
>
>> +Example:
>> +       sbgpio: sbgpio at 17001000 {
>> +               compatible = "apm,xgene-gpio-sb";
>> +               reg = <0x0 0x17001000 0x0 0x400>;
>> +               #gpio-cells = <2>;
>> +               gpio-controller;
>> +               interrupts =    <0x0 0x28 0x1>,
>> +                               <0x0 0x29 0x1>,
>> +                               <0x0 0x2a 0x1>,
>> +                               <0x0 0x2b 0x1>,
>> +                               <0x0 0x2c 0x1>,
>> +                               <0x0 0x2d 0x1>;
>> +       };
>
> Yours,
> Linus Walleij