On Tue, Mar 2, 2021 at 3:57 PM Linus Walleij [off-list ref] wrote:

On Thu, Feb 25, 2021 at 5:42 PM Álvaro Fernández Rojas
[off-list ref] wrote:

quoted

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

Signed-off-by: Álvaro Fernández Rojas <redacted>
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>

(...)

quoted

+  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