linux-kernel - [PATCH 0/2] gpio: cadence: Add Axiado AX3000 support and edge interrupts

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Message-Id: <20251222-axiado-ax3000-cadence-gpio-support-v1-0-c9ef8e0d0bce@axiado.com>
Date: Mon, 22 Dec 2025 23:28:56 -0800
From: Swark Yang <syang@...ado.com>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...nel.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Swark Yang <syang@...ado.com>, Tzu-Hao Wei <twei@...ado.com>, 
 Prasad Bolisetty <pbolisetty@...ado.com>
Subject: [PATCH 0/2] gpio: cadence: Add Axiado AX3000 support and edge
 interrupts

This patch series updates the gpio-cadence driver to support the Axiado
AX3000 platform and extends its interrupt capabilities.

On the Axiado AX3000 platform, pinmux and pin configuration (such as
direction and output enable) are configured by the hardware/firmware at
boot time before Linux boots. To support this architecture, this series
introduces a platform-specific quirk to skip default pin initialization
during the probe sequence, preserving the pre-boot configuration.

The series also enables support for edge-triggered interrupts (rising,
falling, and both edges). The Cadence IP6508 hardware supports these
modes via its IRQ registers, but they were previously unimplemented in
the driver.

Patch breakdown:
 - Patch 1 adds a quirk for the Axiado AX3000 platform
 - Patch 2 enables edge-triggered interrupt support

These patches are expected to go via the GPIO subsystem tree.

Feedback is welcome.

Signed-off-by: Swark Yang <syang@...ado.com>
---
Swark Yang (1):
      gpio: cadence: Add quirk for Axiado AX3000 platform

Tzu-Hao Wei (1):
      gpio: cadence: Add support for edge-triggered interrupts

 drivers/gpio/gpio-cadence.c | 68 +++++++++++++++++++++++++++++++++------------
 1 file changed, 51 insertions(+), 17 deletions(-)
---
base-commit: e538109ac71d801d26776af5f3c54f548296c29c
change-id: 20251215-axiado-ax3000-cadence-gpio-support-7549bc46ef48

Best regards,
-- 
Swark Yang <syang@...ado.com>