{"id":2221032,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2221032/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-gpio/patch/20260408-dev-b4-aaeon-mcu-driver-v5-2-ad98bd481668@bootlin.com/","project":{"id":42,"url":"http://patchwork.ozlabs.org/api/1.1/projects/42/?format=json","name":"Linux GPIO development","link_name":"linux-gpio","list_id":"linux-gpio.vger.kernel.org","list_email":"linux-gpio@vger.kernel.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260408-dev-b4-aaeon-mcu-driver-v5-2-ad98bd481668@bootlin.com>","date":"2026-04-08T17:21:55","name":"[v5,2/5] dt-bindings: mfd: Add AAEON embedded controller","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"d4c494c44f5c1843d8df80425ae2167391353ae6","submitter":{"id":82054,"url":"http://patchwork.ozlabs.org/api/1.1/people/82054/?format=json","name":"Thomas Perrot (Schneider Electric)","email":"thomas.perrot@bootlin.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-gpio/patch/20260408-dev-b4-aaeon-mcu-driver-v5-2-ad98bd481668@bootlin.com/mbox/","series":[{"id":499169,"url":"http://patchwork.ozlabs.org/api/1.1/series/499169/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-gpio/list/?series=499169","date":"2026-04-08T17:21:53","name":"Add support for AAEON SRG-IMX8P MCU","version":5,"mbox":"http://patchwork.ozlabs.org/series/499169/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2221032/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2221032/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-gpio@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256\n header.s=dkim header.b=uscjZH8B;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; 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a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1775668943; h=from:subject:date:message-id:to:cc:mime-version:content-type:\n\t content-transfer-encoding:in-reply-to:references;\n\tbh=dUsa3nTYTD0LWuue8QGSHk7Sdq3D98Q/HNY3FHbk8Ww=;\n\tb=uscjZH8BRgy+EwbKNKS6a1tbblQeMJ3O87AMzDWbdul8aFeUJr62tW+3jO84NKpuWDz86H\n\t3GhxSMYT9SJC+56HsNgT90B2fpr8ogjzmQqnbjqsTAUKnUtOcaLBhdx4ngzWpHf0lwCsMv\n\tkGBICL2caNjuSqXh3Hsqv3tdC8feYtX5zE01b0RVdcvR6bM9bpeKw79jyI5lDa37O3hpaM\n\tADVOrQAWH3tPC99HHTyaE4m4e+VTS4zNYxqAmsZiBOj9gXOYzfBvbZ4l2BbGOoeI3UHKF+\n\tvqw9fI4ijUDIiAhj+BwVkMKHkdAZhLPB4iLN6LnoxNWr6JP6LMo9ZzEg+hgL0g==","From":"\"Thomas Perrot (Schneider Electric)\" ","Date":"Wed, 08 Apr 2026 19:21:55 +0200","Subject":"[PATCH v5 2/5] dt-bindings: mfd: Add AAEON embedded controller","Precedence":"bulk","X-Mailing-List":"linux-gpio@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"8bit","Message-Id":"<20260408-dev-b4-aaeon-mcu-driver-v5-2-ad98bd481668@bootlin.com>","References":"<20260408-dev-b4-aaeon-mcu-driver-v5-0-ad98bd481668@bootlin.com>","In-Reply-To":"<20260408-dev-b4-aaeon-mcu-driver-v5-0-ad98bd481668@bootlin.com>","To":"Rob Herring , Krzysztof Kozlowski ,\n Conor Dooley , Linus Walleij ,\n Bartosz Golaszewski , Shawn Guo ,\n Sascha Hauer ,\n Pengutronix Kernel Team ,\n Fabio Estevam ,\n =?utf-8?b?SsOpcsOpbWllIERhdXRoZXJpYmVz?= ,\n Wim Van Sebroeck ,\n Guenter Roeck , Lee Jones ","Cc":"devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-gpio@vger.kernel.org, imx@lists.linux.dev,\n linux-arm-kernel@lists.infradead.org, linux-watchdog@vger.kernel.org,\n Thomas Petazzoni ,\n Miquel Raynal ,\n \"Thomas Perrot (Schneider Electric)\" ,\n Conor Dooley ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=openpgp-sha256; l=3215;\n i=thomas.perrot@bootlin.com; h=from:subject:message-id;\n bh=b+kaB6A7OKVr7kDI5Hc2pF93x+v4znCDL+JlTKBr58g=;\n b=owEB7QES/pANAwAKAZ/ACwVx/grtAcsmYgBp1o7DtENEBUguLuW/CfIbnsT7cDlXsBMx/Mk2k\n GyB/DWIYtOJAbMEAAEKAB0WIQSHQHfGpqMKIwOoEiGfwAsFcf4K7QUCadaOwwAKCRCfwAsFcf4K\n 7Z7fC/0ZIuoakYcXNWKWyxc8zitQ9SkUvzQtwRZJRFHvUSmSeN81bZq+qWMTTmCv6whCjkf+TAn\n YRFoskIsuwPR1Jh0OMx/ZvuU6DNgr0FDEzXriJDTjkh7w5YI87a0HAdWs3YPGyoSxS3OyfvVw1G\n 0lNEn6RkRIyYkE1SDG0M6VVzezWP0+kVVGJ7OfsRaKEcowhH6v2i+aeoDCSvTxSsmCuwidvupuF\n i7hdIxrd77h7KgeMwBZoRrElityY/LMmWpZjhkwj3oGBFxx3e7lr2vnBsQ/f3Yb8kjM/g01WaFZ\n Dt7GHeymFOdIi291yIcHWusIFn2iuaO+IFhrhebogdcG9J5KIovyI9VglI7qdsR9/lkFF9ZW2km\n zzBMPqCtBy3MdI6Rjl81PO4g/P/LLSwVZFe1i9cfvqeNuoCqssoL0/5L8sB40y1566VEsv7QuB+\n 2BejNbbGvHXh9K+sbwDYUEXJbxE3AHUKRjs+AFeQDgVRKNrTBB0Zn8/vEw5/KhpBqaR0o=","X-Developer-Key":"i=thomas.perrot@bootlin.com; a=openpgp;\n fpr=874077C6A6A30A2303A812219FC00B0571FE0AED","X-Last-TLS-Session-Version":"TLSv1.3"},"content":"Add device tree binding documentation for the AAEON embedded controller\n(MCU). This microcontroller is found on AAEON embedded boards, it is\nconnected via I2C and provides GPIO control and a watchdog timer.\n\nReviewed-by: Conor Dooley \nSigned-off-by: Thomas Perrot (Schneider Electric) \n---\n .../bindings/mfd/aaeon,srg-imx8p-mcu.yaml | 67 ++++++++++++++++++++++\n MAINTAINERS | 6 ++\n 2 files changed, 73 insertions(+)","diff":"diff --git a/Documentation/devicetree/bindings/mfd/aaeon,srg-imx8p-mcu.yaml b/Documentation/devicetree/bindings/mfd/aaeon,srg-imx8p-mcu.yaml\nnew file mode 100644\nindex 000000000000..034fb7b42551\n--- /dev/null\n+++ b/Documentation/devicetree/bindings/mfd/aaeon,srg-imx8p-mcu.yaml\n@@ -0,0 +1,67 @@\n+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)\n+%YAML 1.2\n+---\n+$id: http://devicetree.org/schemas/mfd/aaeon,srg-imx8p-mcu.yaml#\n+$schema: http://devicetree.org/meta-schemas/core.yaml#\n+\n+title: AAEON Embedded Controller\n+\n+maintainers:\n+ - Jérémie Dautheribes \n+ - Thomas Perrot \n+\n+description:\n+ AAEON embeds a microcontroller on Standard RISC Gateway with ARM i.MX8M Plus\n+ Quad-Core boards providing GPIO control and watchdog timer.\n+\n+ This MCU is connected via I2C bus.\n+\n+ Its GPIO controller provides 7 GPOs and 12 GPIOs.\n+\n+ Its watchdog has a fixed maximum hardware heartbeat of 25 seconds and supports\n+ a timeout of 240 seconds through automatic pinging.\n+ The timeout is not programmable and cannot be changed via device tree properties.\n+\n+properties:\n+ compatible:\n+ const: aaeon,srg-imx8p-mcu\n+\n+ reg:\n+ maxItems: 1\n+\n+ gpio-controller: true\n+\n+ \"#gpio-cells\":\n+ const: 2\n+\n+ gpio-line-names:\n+ minItems: 1\n+ maxItems: 19\n+\n+required:\n+ - compatible\n+ - reg\n+ - gpio-controller\n+ - \"#gpio-cells\"\n+\n+additionalProperties: false\n+\n+examples:\n+ - |\n+ i2c {\n+ #address-cells = <1>;\n+ #size-cells = <0>;\n+\n+ embedded-controller@62 {\n+ compatible = \"aaeon,srg-imx8p-mcu\";\n+ reg = <0x62>;\n+\n+ gpio-controller;\n+ #gpio-cells = <2>;\n+ gpio-line-names = \"gpo-1\", \"gpo-2\", \"gpo-3\", \"gpo-4\",\n+ \"gpo-5\", \"gpo-6\", \"gpo-7\",\n+ \"gpio-1\", \"gpio-2\", \"gpio-3\", \"gpio-4\",\n+ \"gpio-5\", \"gpio-6\", \"gpio-7\", \"gpio-8\",\n+ \"gpio-9\", \"gpio-10\", \"gpio-11\", \"gpio-12\";\n+ };\n+ };\ndiff --git a/MAINTAINERS b/MAINTAINERS\nindex c9e416ba74c6..ea9d55f76f35 100644\n--- a/MAINTAINERS\n+++ b/MAINTAINERS\n@@ -186,6 +186,12 @@ W:\thttp://www.adaptec.com/\n F:\tDocumentation/scsi/aacraid.rst\n F:\tdrivers/scsi/aacraid/\n \n+AAEON SRG-IMX8P CONTROLLER MFD DRIVER\n+M:\tThomas Perrot \n+R:\tJérémie Dautheribes \n+S:\tMaintained\n+F:\tDocumentation/devicetree/bindings/mfd/aaeon,srg-imx8p-mcu.yaml\n+\n AAEON UPBOARD FPGA MFD DRIVER\n M:\tThomas Richard \n S:\tMaintained\n","prefixes":["v5","2/5"]}