[PATCH 0/8] Add support for AAEON SRG-IMX8PL MCU

Thomas Perrot (Schneider Electric)
2025-12-12T07:41:26Z

This patch series introduces support for the AAEON SRG-IMX8PL embedded
controller (MCU). The MCU is connected via I2C and provides GPIO and
watchdog functionality for the SRG-IMX8PL board.

The series includes:
- Device tree bindings for the MFD, GPIO, and watchdog subsystems
- MFD driver that serves as the core driver for the MCU
- GPIO driver implementing the GPIO functionality
- Watchdog driver for system monitoring
- MAINTAINERS entry for the new drivers

The drivers follow the standard Linux kernel subsystem patterns, with
the MFD driver registering the sub-devices (GPIO and watchdog) which
are then handled by their respective subsystem drivers.

Signed-off-by: Thomas Perrot (Schneider Electric) <thomas.perrot@bootlin.com>
---
Thomas Perrot (Schneider Electric) (8):
dt-bindings: vendor-prefixes: Add AAEON vendor prefix
dt-bindings: gpio: Add AAEON embedded controller GPIO binding
dt-bindings: watchdog: Add AAEON embedded controller watchdog binding
dt-bindings: mfd: Add AAEON embedded controller binding
mfd: aaeon: Add SRG-IMX8PL MCU driver
gpio: aaeon: Add GPIO driver for SRG-IMX8PL MCU
watchdog: aaeon: Add watchdog driver for SRG-IMX8PL MCU
MAINTAINERS: Add entry for AAEON SRG-IMX8PL MCU driver

.../bindings/gpio/aaeon,srg-imx8pl-gpio.yaml | 54 +++++
.../bindings/mfd/aaeon,srg-imx8pl-mcu.yaml | 58 +++++
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
.../bindings/watchdog/aaeon,srg-imx8pl-wdt.yaml | 38 ++++
MAINTAINERS | 9 +
drivers/gpio/Kconfig | 10 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-aaeon-mcu.c | 248 +++++++++++++++++++++
drivers/mfd/Kconfig | 10 +
drivers/mfd/aaeon-mcu.c | 133 +++++++++++
drivers/watchdog/Kconfig | 10 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/aaeon_mcu_wdt.c | 140 ++++++++++++
include/linux/mfd/aaeon-mcu.h | 30 +++
14 files changed, 744 insertions(+)
---
base-commit: d358e5254674b70f34c847715ca509e46eb81e6f
change-id: 20251211-dev-b4-aaeon-mcu-driver-e0e89ebf4afb

Best regards,
--
Thomas Perrot (Schneider Electric) <thomas.perrot@bootlin.com>