Re: [PATCH 01/12] Documentation: add BCM6328 pincontroller binding documentation

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Hi Linus,

I think it's better if we leave the interrupts out for now.
It's not critical and it can be added later.

Best regards,
Álvaro.

El 02/03/2021 a las 16:23, Linus Walleij escribió:
On Tue, Mar 2, 2021 at 3:57 PM Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
On Thu, Feb 25, 2021 at 5:42 PM Álvaro Fernández Rojas
<noltari@xxxxxxxxx> wrote:

Add binding documentation for the pincontrol core found in BCM6328 SoCs.

Signed-off-by: Álvaro Fernández Rojas <noltari@xxxxxxxxx>
Signed-off-by: Jonas Gorski <jonas.gorski@xxxxxxxxx>
(...)
+  interrupts-extended:
+    description:
+      One interrupt per each of the 4 GPIO ports supported by the controller,
+      sorted by port number ascending order.
+    minItems: 4
+    maxItems: 4

I don't know if this is advisable, there are different ways
of specifying interrupts so this may become ambiguous,
I think Rob will know how/if to do this though.

After reading the code I conclude this gpiochip is hierarchical so this should
just be dropped, and we only need interrupt-parent assigned. The
driver will know the hardware offsets between the interrupt parent
and the GPIO block, this is generally the case for
hierarchical interrupt controllers.

Yours,
Linus Walleij




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