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 [off-list ref] wrote:

On Wed, Dec 17, 2014 at 6:10 AM, Y Vo [off-list ref] wrote:

quoted

Documentation for APM X-Gene standby GPIO controller DTS binding.

Signed-off-by: Y Vo <redacted>
---
 .../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.

quoted

+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