From: Linus Walleij <linusw@kernel.org>
To: Lee Jones <lee@kernel.org>, Bartosz Golaszewski <brgl@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: patches@opensource.cirrus.com, linux-kernel@vger.kernel.org,
linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
Linus Walleij <linusw@kernel.org>
Subject: [PATCH v3 1/2] dt-bindings: mfd: wlf,arizona: Add irq-gpios
Date: Thu, 19 Mar 2026 19:50:29 +0100 [thread overview]
Message-ID: <20260319-mfd-arizona-irq-v3-1-24c251377ec2@kernel.org> (raw)
In-Reply-To: <20260319-mfd-arizona-irq-v3-0-24c251377ec2@kernel.org>
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.
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
next prev parent reply other threads:[~2026-03-19 18:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-19 18:50 [PATCH v3 0/2] mfd: arizona: Move IRQ GPIO to GPIO descriptor Linus Walleij
2026-03-19 18:50 ` Linus Walleij [this message]
2026-03-20 9:24 ` [PATCH v3 1/2] dt-bindings: mfd: wlf,arizona: Add irq-gpios Charles Keepax
2026-03-20 17:36 ` Conor Dooley
2026-03-19 18:50 ` [PATCH v3 2/2] mfd: arizona: Convert GPIO IRQ handling to descriptors Linus Walleij
2026-03-25 17:20 ` Lee Jones
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