[PATCH v3 5/6] pinctrl: dt-binding: Extend meson documentation with GPIO IRQs support

[Carlo Caione]

On Wed, Dec 2, 2015 at 4:30 PM, Rob Herring <robh at kernel.org> wrote:
> On Tue, Dec 01, 2015 at 05:24:21PM +0100, Carlo Caione wrote:
>> From: Carlo Caione <carlo at endlessm.com>
>>
>> Extend the pinctrl binding documentation with the support for external
>> GPIO interrupts.
>>
>> Signed-off-by: Carlo Caione <carlo at endlessm.com>
>> Signed-off-by: Beniamino Galvani <b.galvani at gmail.com>
>> ---
>>  Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt | 11 +++++++++++
>>  1 file changed, 11 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
>> index 3f6a524..de669ce 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
>> +++ b/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
>> @@ -3,6 +3,12 @@
>>  Required properties for the root node:
>>   - compatible: "amlogic,meson8-pinctrl" or "amlogic,meson8b-pinctrl"
>>   - reg: address and size of registers controlling irq functionality
>> + - reg-names: should be "irq"
>> + - interrupt-controller: marks the device node as an interrupt controller
>> + - #interrupt-cells: should be 2. The first cell is the GPIO number. The
>> +                  second cell is used to specify trigger type.
>> + - amlogic,irqs-gpio: specifies the GPIO IRQ numbers on the GIC (GPIO_IRQ#)
>> + - interrupt-parent: specifies the parent interrupt controller.
>>
>>  === GPIO sub-nodes ===
>>
>> @@ -46,7 +52,12 @@ pinctrl-bindings.txt
>>
>>       pinctrl: pinctrl at c1109880 {
>>               compatible = "amlogic,meson8-pinctrl";
>> +             reg-names = "irq";
>>               reg = <0xc1109880 0x10>;
>> +             interrupt-parent = <&gic>;
>> +             amlogic,irqs-gpio = <64 65 66 67 68 69 70 71>;
>
> Can't you just use "interrupts" here?

Following this discussion for v2 with Marc
http://www.spinics.net/lists/devicetree/msg104385.html I decided to
move away from using the "interrupts" property since these interrupts
are not actually the pinctrl's interrupts (they are owned by the
devices using them). I guess that using "interrupts" would be a bit
misleading.

-- 
Carlo Caione