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Fri, 23 Jan 2026 10:54:43 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1769162087; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding; bh=GtOq1m+WD2HMLvMMLoom6Vbvmzr8+b8ZqOjynGdUdKA=; b=xgUXQqIKuJKbnfQU+glvqxQ0lC7iQX/b8KXT8yFWPgP9HuVjX7OT+AdxPf89EvPiRPjWCr wNh/NarbahLItvR6Yv5sRBQKz1Qn3CAm8M/oYdJJmHl6bd3J1g7LakaxlC20KFNMEqAkbq WTKEmCzsHFjAOk7t6JTNs3jO/cT6Ozba6+SphqYh0iWqlfjPwPET58Bt/QGgPFSNCnCxNU Te+N0qI3tgpXWFnKbIbKTxSGLUW6CwBF4+j8JyyRtJQH3RtnkfGpZcYelqFmfgWwcVVJHM pxD3ulyWYRKIByBosyCAIhRIPBN1buX9MkSr7iGL5iuyl+OgJacq3oCf5iuA7w== From: "Thomas Perrot (Schneider Electric)" Subject: [PATCH v2 0/5] Add support for AAEON SRG-IMX8PL MCU Date: Fri, 23 Jan 2026 10:54:29 +0100 Message-Id: <20260123-dev-b4-aaeon-mcu-driver-v2-0-9f4c00bfb5cb@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAFVFc2kC/4XNTQ7CIBCG4as0rB1T6E9aV97DdMHAYEksGKhE0 /Tu0saNG12+k8zzLSxSsBTZqVhYoGSj9S6HOBRMjdJdCazOzUQpGi44B00JsAYpyTuY1AN0sIk CUEldT2hqaZDl73sgY5+7fBlyjzbOPrz2ocS3638zcSih6dFIjlJVpjqj9/PNuqPy0zbyEcRvo UXdNqg6Mlx8CcO6rm8eeTeVAgEAAA== X-Change-ID: 20251211-dev-b4-aaeon-mcu-driver-e0e89ebf4afb To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Bartosz Golaszewski , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , =?utf-8?q?J=C3=A9r=C3=A9mie_Dautheribes?= , Wim Van Sebroeck , Guenter Roeck , Lee Jones Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-watchdog@vger.kernel.org, Thomas Petazzoni , "Thomas Perrot (Schneider Electric)" , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2471; i=thomas.perrot@bootlin.com; h=from:subject:message-id; bh=I+86nw5ss1UyVYYj+1JjJmbO7AEei5pGYiM5ZmQb++w=; b=owEB7QES/pANAwAKAZ/ACwVx/grtAcsmYgBpc0VjaDn3S4LIcnCwDpkh3Vnz0ZFtExIlW6SNM WlJw+WkwRuJAbMEAAEKAB0WIQSHQHfGpqMKIwOoEiGfwAsFcf4K7QUCaXNFYwAKCRCfwAsFcf4K 7bErC/9iYV0mVU/N8PkYfbeQlsjzMkmEC3KULGJ2eUV7cxH8hxTOZh8jNjmeJi6iR0b6yPh/ku1 K0Huat/GPWckP5kQ1kqZmOviPNWg9XxOEVJKCcUCaCjZetkxjCBzB+ofssV32vOJ8fRBPWsKpMs cQbfuCNwkrBO1UnYQe0Em7Kt1hSx0pc5BOal6bZF+BsKwfw6f0dnz594gq2gIYdLRdXhwBT6/7M RWx1AMhE+Jvk50aaQj2Gf0qEchRpePJPLDgoFq1H151UufKBmILwRiSBUivtTDIC6KjieNOTtOl rTnB8EK8+zaDmN5wQu+EbmoRZF/CKhLQuD+VVWJNZhzafA8eGLpdKyIIyOalBseyj16w00I7M+Q 7zBQKBHsW+2LFjlwk8GpPNl33jt3wTRqZlpoKZ6Uy4XpXXkcDvgZecQXDYo1mWYs2jg3XAp9Vq2 ogNRxKs16GvP2B6GWYOJuEhDecPY79+EKQ85gzFzoC4fK1dRtKOBuPoYhN5NlUJ2m5GjY= X-Developer-Key: i=thomas.perrot@bootlin.com; a=openpgp; fpr=874077C6A6A30A2303A812219FC00B0571FE0AED X-Last-TLS-Session-Version: TLSv1.3 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 binding for the MFD driver - 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) --- Changes in v2: - Fold GPIO and watchdog bindings into MFD binding - Drop OF_GPIO dependency in GPIO Kconfig - Use __set_bit/__clear_bit/__assign_bit instead of atomic variants - Various driver cleanups and improvements - Link to v1: https://lore.kernel.org/r/20251212-dev-b4-aaeon-mcu-driver-v1-0-6bd65bc8ef12@bootlin.com --- Thomas Perrot (Schneider Electric) (5): dt-bindings: vendor-prefixes: Add AAEON vendor prefix dt-bindings: mfd: Add AAEON embedded controller 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 .../bindings/mfd/aaeon,srg-imx8pl-mcu.yaml | 56 +++++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 10 + drivers/gpio/Kconfig | 10 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-aaeon-mcu.c | 238 +++++++++++++++++++++ drivers/mfd/Kconfig | 9 + drivers/mfd/Makefile | 2 + drivers/mfd/aaeon-mcu.c | 129 +++++++++++ drivers/watchdog/Kconfig | 10 + drivers/watchdog/Makefile | 1 + drivers/watchdog/aaeon_mcu_wdt.c | 110 ++++++++++ include/linux/mfd/aaeon-mcu.h | 31 +++ 13 files changed, 609 insertions(+) --- base-commit: d358e5254674b70f34c847715ca509e46eb81e6f change-id: 20251211-dev-b4-aaeon-mcu-driver-e0e89ebf4afb Best regards, -- Thomas Perrot (Schneider Electric)