[PATCH v4 1/2] dt-bindings: mfd: wlf,arizona: Add irq-gpios

Linus Walleij
2026-03-26T10:51:18Z

The Wolfson Microelectronics Arizona sometimes needs to poll the
GPIO line corresponding to the IRQ to counter bugs in the hardware
that appear on edge-triggered IRQs.

For this situation, provide the optional irq-gpios property.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
---
Documentation/devicetree/bindings/mfd/wlf,arizona.yaml | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/wlf,arizona.yaml b/Documentation/devicetree/bindings/mfd/wlf,arizona.yaml
index 7902f3c5d289..359e40b3dacb 100644
--- a/Documentation/devicetree/bindings/mfd/wlf,arizona.yaml
+++ b/Documentation/devicetree/bindings/mfd/wlf,arizona.yaml
@@ -194,6 +194,16 @@ properties:
reset-gpios:
maxItems: 1

+ irq-gpios:
+ maxItems: 1
+ description:
+ A functional IRQ should be provided in the interrupts
+ property. This property enables edge triggered IRQ emulation
+ for hosts that don't support the codecs level triggered IRQ
+ output. The GPIO line corresponding to the IRQ will be polled
+ until all IRQs have been handled, ensuring an edge is generated
+ for the next IRQ.
+
wlf,reset:
description:
GPIO specifier for the GPIO controlling RESET

--
2.53.0