Thread (13 messages) 13 messages, 7 authors, 2026-02-04

Re: [PATCH v3 4/5] gpio: aaeon: Add GPIO driver for SRG-IMX8P MCU

From: Linus Walleij <linusw@kernel.org>
Date: 2026-02-03 23:44:40
Also in: imx, linux-devicetree, linux-gpio, linux-watchdog, lkml

On Tue, Feb 3, 2026 at 5:21 PM Thomas Perrot (Schneider Electric)
[off-list ref] wrote:
Add GPIO driver for the Aaeon SRG-IMX8P embedded controller. This
driver supports 7 GPO (General Purpose Output) pins and 12 GPIO pins
that can be configured as inputs or outputs.

The driver implements proper state management for GPO pins (which are
output-only) and full direction control for GPIO pins. During probe,
all pins are reset to a known state (GPOs low, GPIOs as inputs) to
prevent undefined behavior across system reboots, as the MCU does not
reset GPIO states on soft reboot.

Co-developed-by: Jérémie Dautheribes (Schneider Electric) <redacted>
Signed-off-by: Jérémie Dautheribes (Schneider Electric) <redacted>
Signed-off-by: Thomas Perrot (Schneider Electric) <redacted>
Looks good to me!

Reviewed-by: Linus Walleij <linusw@kernel.org>

Yours,
Linus Walleij
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