{"id":2227941,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2227941/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-i2c/patch/20260424-add-mcu-fan-khadas-vim4-v5-1-afcfa7157b23@aliel.fr/","project":{"id":35,"url":"http://patchwork.ozlabs.org/api/1.1/projects/35/?format=json","name":"Linux I2C development","link_name":"linux-i2c","list_id":"linux-i2c.vger.kernel.org","list_email":"linux-i2c@vger.kernel.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260424-add-mcu-fan-khadas-vim4-v5-1-afcfa7157b23@aliel.fr>","date":"2026-04-24T14:17:32","name":"[v5,1/8] dt-bindings: mfd: khadas: Add new compatible for Khadas VIM4 MCU","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"e1222e3d7099503b1283f7e3ff49609c1f55c611","submitter":{"id":93204,"url":"http://patchwork.ozlabs.org/api/1.1/people/93204/?format=json","name":"Ronald Claveau via B4 Relay","email":"devnull+linux-kernel-dev.aliel.fr@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-i2c/patch/20260424-add-mcu-fan-khadas-vim4-v5-1-afcfa7157b23@aliel.fr/mbox/","series":[{"id":501376,"url":"http://patchwork.ozlabs.org/api/1.1/series/501376/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-i2c/list/?series=501376","date":"2026-04-24T14:17:34","name":"Add VIM4 MCU/FAN support","version":5,"mbox":"http://patchwork.ozlabs.org/series/501376/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2227941/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2227941/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@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=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=HTFy1o7F;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; 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a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1777040410; cv=none;\n b=Klq5inPgZcsgNASkGhIozuW/hOFveTk+7j2UkDIWHV4mMeCM8/YQi1qmYhTO6e9x4FOY92m0n+UAwr5QHvQP31qoedhWdVvzO9dQN9lwBuz/F0FMoL5itxXqAUZPegvxwzx2cbR0RSSDOknFPHe0M2f4DLG9Znu1H6pAbmKiDJE=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777040410; c=relaxed/simple;\n\tbh=KQ2jlEW1eOaS76algkR9vPolQCqOkVsbm0MXBmfkdXw=;\n\th=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References:\n\t In-Reply-To:To:Cc;\n b=GQKQDScxrdO6Di9VniKT5zK8tzY/TqyUT/hIptDeTD14u+gv5VrBNuV+UUmBAyWXcGMQUpZX6QpuSlpRGaZLbHGJYfNBrfKdMYqBej26h/FRUGNJLfkYBUkKouM7FDJWmfb6Kt150tEr/MkRr35o6k4yhBM1jN9JakLHhhyxzaE=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=HTFy1o7F; arc=none smtp.client-ip=10.30.226.201","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1777040410;\n\tbh=KQ2jlEW1eOaS76algkR9vPolQCqOkVsbm0MXBmfkdXw=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From;\n\tb=HTFy1o7FdQbHOLrpzCrgUNMtug7Nt2QQKCgK+I9GRMzxa/P1lb+TmQH4rgQhwECwU\n\t rp/Oii1Tro3FD7iMD6TeJb8koh4wcmmIZlOrhcB5pakVm4QH2fPoIpWG7PJ0Eh6oHh\n\t CHJYmSYAo5puJ4KhtsryCWun3vOfV09eMF11blR5AOS95xJBC0oi/uX5sRv3v75KND\n\t 9QDMWa15oOhfvQLPcKw6M713gwQBpcY8G+G2Vzi8pvjaciXCYX54FJ4YPOYfMsq0V/\n\t Ef/DdmmF0Ku8urqI6f5nioJSZj0mEKCi6RrlTjNu9fVDaA4Xd3R3v7IoheJjohfBRi\n\t ExsiJfZQwZCsg==","From":"Ronald Claveau via B4 Relay\n ","Date":"Fri, 24 Apr 2026 16:17:32 +0200","Subject":"[PATCH v5 1/8] dt-bindings: mfd: khadas: Add new compatible for\n Khadas VIM4 MCU","Precedence":"bulk","X-Mailing-List":"linux-i2c@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260424-add-mcu-fan-khadas-vim4-v5-1-afcfa7157b23@aliel.fr>","References":"<20260424-add-mcu-fan-khadas-vim4-v5-0-afcfa7157b23@aliel.fr>","In-Reply-To":"<20260424-add-mcu-fan-khadas-vim4-v5-0-afcfa7157b23@aliel.fr>","To":"Neil Armstrong , Lee Jones ,\n Rob Herring , Krzysztof Kozlowski ,\n Conor Dooley , Andi Shyti ,\n Kevin Hilman , Jerome Brunet ,\n Martin Blumenstingl ,\n Beniamino Galvani ,\n \"Rafael J. Wysocki\" ,\n Daniel Lezcano , Zhang Rui ,\n Lukasz Luba , Liam Girdwood ,\n Mark Brown ","Cc":"linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org,\n linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,\n linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,\n Ronald Claveau ,\n Conor Dooley ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=openpgp-sha256; l=1479;\n i=linux-kernel-dev@aliel.fr; h=from:subject:message-id;\n bh=eCKy2chdqFWw8sHr2BRKBa6cnfiYWQdTnn103pMuJ+4=;\n b=owGbwMvMwCWm1SvKXP3cUInxtFoSQ+brGr6UkrenLluc+XxnU/vsnVp/+y9H+VvdfinYVDHHt\n l7g2I3mjlIWBjEuBlkxRZb+uZYn3l0+eubrHvUUmDmsTCBDGLg4BWAiIgcZ/rulnb75uzR6+sey\n fKNVfzKkPxT9lmx1+lh6YMbmyXq3JawZGZZdNI6auPBAigiTt13+PaGLizYsNTqxYvJSr57EnP8\n qBnwA","X-Developer-Key":"i=linux-kernel-dev@aliel.fr; a=openpgp;\n fpr=DFD863F61375BF917F0012173953305EF1D0EC3E","X-Endpoint-Received":"by B4 Relay for linux-kernel-dev@aliel.fr/default with\n auth_id=744","X-Original-From":"Ronald Claveau ","Reply-To":"linux-kernel-dev@aliel.fr"},"content":"From: Ronald Claveau \n\nThe Khadas VIM4 MCU register is slightly different\nfrom previous boards' MCU.\nThis board also features a switchable power source for its fan.\n\nAcked-by: Conor Dooley \nSigned-off-by: Ronald Claveau \n---\n Documentation/devicetree/bindings/mfd/khadas,mcu.yaml | 18 ++++++++++++++++++\n 1 file changed, 18 insertions(+)","diff":"diff --git a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml\nindex 084960fd5a1fd..1f135618e3b6f 100644\n--- a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml\n+++ b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml\n@@ -18,6 +18,7 @@ properties:\n compatible:\n enum:\n - khadas,mcu # MCU revision is discoverable\n+ - khadas,vim4-mcu # Different MCU variant, not discoverable\n \n \"#cooling-cells\": # Only needed for boards having FAN control feature\n const: 2\n@@ -25,10 +26,27 @@ properties:\n reg:\n maxItems: 1\n \n+ fan-supply:\n+ description: Phandle to the regulator that powers the fan.\n+ $ref: /schemas/types.yaml#/definitions/phandle\n+\n required:\n - compatible\n - reg\n \n+allOf:\n+ - if:\n+ properties:\n+ compatible:\n+ contains:\n+ const: khadas,vim4-mcu\n+ then:\n+ required:\n+ - fan-supply\n+ else:\n+ properties:\n+ fan-supply: false\n+\n additionalProperties: false\n \n examples:\n","prefixes":["v5","1/8"]}