From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout01.posteo.de (mout01.posteo.de [185.67.36.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B63E3CCFC5 for ; Fri, 13 Mar 2026 18:48:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.67.36.65 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773427700; cv=none; b=eEywufazp/3751cWC6DwKtD8jz5owEDzvqhXZRVCFjeJRZF3qsrlci55RXCl3zdLCIAouk9kiU8b0JlkDAh7bAIoQsWMZT+tI3fylParaqb2c+jSIrfk8keXOgGjOsIDmPCZ+54sB8slIVfzaMODhy58Vk3u1pprezoDccWa7w4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773427700; c=relaxed/simple; bh=lqkLCC6LSFT8sUNpEBzBY8JOtcsVr7GJ4448/pcUwY0=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=nY1urNiDKKB49eKRePutFuEemAMjEs/6fd56kSotraL1CVCFvaLQXy/wRCkEKtFktGBqM1fB6lJzRgXOAB0G+bdxIG1BvdFLDAuiwFDE6LFRQeXJfgFgvtKuGgkZ/mECK6rbQPOmJCxsBQPtiya1tjz8qv5yB5HQ6DqR6vro1+k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=posteo.de; spf=pass smtp.mailfrom=posteo.de; dkim=pass (2048-bit key) header.d=posteo.de header.i=@posteo.de header.b=SH8DSFqF; arc=none smtp.client-ip=185.67.36.65 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=posteo.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=posteo.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=posteo.de header.i=@posteo.de header.b="SH8DSFqF" Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id C684C240029 for ; Fri, 13 Mar 2026 19:48:16 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=posteo.de; s=2017; t=1773427696; bh=r5SX/Ue5jJ9vUSKPhSX3SKPLfgJjsR+e+Um9Nu635+4=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type: Content-Transfer-Encoding:To:Cc:Autocrypt:OpenPGP:From; b=SH8DSFqFZy7WBy8UlkOA8Pth0KFbJc/GVnVuyiHxFXU/hbeXS2FISXKmmqbgDtH64 imCjr6LpsUIsMRurCJECxAkX6fd6m1Yifr1WE1rBvvgVOtjExPrkrHJy6aLixfxX08 BBL8V7RTGVnE7h/RDYovlnLSjSBG5Ejy+CFw1ssyLceSpmVuqC3cBMxvRccCqpP22A YKuSIHGhWP0SkHQ2IMbwb659sbfiLtsyGg6XLHkvZMX9JkCrcFLgSisNaIiXAxXXbh 02lkNPXA3IEtNkvOo3iY9e2QE7Y800SDZg+9IwfNOg2U4JDDvylIY3B73RJhfl56g3 vLQbF9/gq6YXQ== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4fXYQh1Pdkz9rxG; Fri, 13 Mar 2026 19:48:12 +0100 (CET) From: Markus Probst Subject: [PATCH v3 0/7] Introduce Synology Microp driver Date: Fri, 13 Mar 2026 18:48:15 +0000 Message-Id: <20260313-synology_microp_initial-v3-0-16941debd8a0@posteo.de> Precedence: bulk X-Mailing-List: linux-leds@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=H4sIALxbtGkC/4WPzYqDMBSFX0WynpT8qDGu5j2GIja5aQNqbJKGS vHdJ9WBcTPM8lz4vnvOCwXwFgJqixfykGywbsqBfxRI3frpCtjqnBEjrCac1DgskxvcdelGq7y bOzvZaPsBEyN0r8RFlLJGmZ49GPvczF/nPXu4P/KDuB9//W2R7RVlVGD/CLHLlTQkDFCVDQVJm kq1iaNjpR+E0nJHBtAB97KSRihmhJFtouxNXPoAWLlxtLEtkjgR7BVH70I3G6Lzy7Y80a3RvyM TxQQbZQxoqMuyUZ+zCxHcScPmTOzoaf72sOyRvJGy5oZTVR0967p+A3mvwYWXAQAA X-Change-ID: 20260306-synology_microp_initial-0f7dac7b7496 To: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Miguel Ojeda , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , "Rafael J. Wysocki" , Igor Korotin , Daniel Almeida , Bjorn Helgaas , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Pavel Machek , Len Brown , Robert Moore Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, driver-core@lists.linux.dev, linux-pci@vger.kernel.org, linux-leds@vger.kernel.org, linux-acpi@vger.kernel.org, acpica-devel@lists.linux.dev, Markus Probst X-Developer-Signature: v=1; a=openpgp-sha256; l=4344; i=markus.probst@posteo.de; h=from:subject:message-id; bh=lqkLCC6LSFT8sUNpEBzBY8JOtcsVr7GJ4448/pcUwY0=; b=owEBiQJ2/ZANAwAIATR2H/jnrUPSAcsmYgBptFva0KVi4waUAufIhV4CSG2+oR7AcRMMSy2P+ KYk8QcZH/WJAk8EAAEIADkWIQSCdBjE9KxY53IwxHM0dh/4561D0gUCabRb2hsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMSwyLDIACgkQNHYf+OetQ9JPFw/9EuSwy3G/wzL75o2KFy4QNCXEDn9de4j o746o/u5CfdEZfVFj/B6lGRU78jSxptkA8+pz+B/v+wpui7o/wti3TRNxoA8LlSjj3igULsudtl y/iu5pJVI6SKC0CUz3KVI6TjWtu/0UUw6IDuuyhjtQn9kxLyV3VMNlmvu+0Kd8TvCM+rrXp3PNC 911WDQRwzdfKBL8ILUdLt7aQZhnuhAz+L6xr3AucxQvtCZY5Yu9YVmh6nvr3k8+FXj0kkxCkSbX WOzjDY6Ysq/JunEyUWr33Ku8V6HbBHjj8jtbO3krGpScvqTa94p71StqgXm68rpcV0Wk1P1GUCH P9NrC9lLIatv/Lg0Bf/n9GRzQ6p8rFgcUKxHBSc4s63xDdAp+rBwcOBpWcl57fGUxWk8/n/LmJ1 vv8+WkmPwqcPi/e2d5dD+FStJdba9KVqiER06I1sDG8mpVJjjJuAxaWh7H+odgZ8acq9POM0Nh7 OMRd2siBbNkTJWsDGVkjnyh1rM/7IlYCQcZCIo9U86Txgom9vty7zOPY3WM1ZnC6yJRElsDtWPZ uPSRPt4JjSHBfV1quDujfvnO7ZWp/p/1ome6jK+8Mlx0A6XJ/E5r/HTbRasz4uPQr+QYQ0neefy vmsJUnxNlCq/9ZGVy6OWuaNzAxyAP7W3oLPZ/SzSg+hlAHxa6XqY= X-Developer-Key: i=markus.probst@posteo.de; a=openpgp; fpr=827418C4F4AC58E77230C47334761FF8E7AD43D2 Autocrypt: addr=markus.probst@posteo.de; prefer-encrypt=mutual; keydata=xsFNBGiDvXgBEADAXUceKafpl46S35UmDh2wRvvx+UfZbcTjeQOlSwKP7YVJ4JOZrVs93qReNLkO WguIqPBxR9blQ4nyYrqSCV+MMw/3ifyXIm6Pw2YRUDg+WTEOjTixRCoWDgUj1nOsvJ9tVAm76Ww+ /pAnepVRafMID0rqEfD9oGv1YrfpeFJhyE2zUw3SyyNLIKWD6QeLRhKQRbSnsXhGLFBXCqt9k5JA RhgQof9zvztcCVlT5KVvuyfC4H+HzeGmu9201BVyihJwKdcKPq+n/aY5FUVxNTgtI9f8wIbmfAja oT1pjXSp+dszakA98fhONM98pOq723o/1ZGMZukyXFfsDGtA3BB79HoopHKujLGWAGskzClwTjRQ xBqxh/U/lL1pc+0xPWikTNCmtziCOvv0KA0arDOMQlyFvImzX6oGVgE4ksKQYbMZ3Ikw6L1Rv1J+ FvN0aNwOKgL2ztBRYscUGcQvA0Zo1fGCAn/BLEJvQYShWKeKqjyncVGoXFsz2AcuFKe1pwETSsN6 OZncjy32e4ktgs07cWBfx0v62b8md36jau+B6RVnnodaA8++oXl3FRwiEW8XfXWIjy4umIv93tb8 8ekYsfOfWkTSewZYXGoqe4RtK80ulMHb/dh2FZQIFyRdN4HOmB4FYO5sEYFr9YjHLmDkrUgNodJC XCeMe4BO4iaxUQARAQABzRdtYXJrdXMucHJvYnN0QHBvc3Rlby5kZcLBkQQTAQgAOxYhBIJ0GMT0 rFjncjDEczR2H/jnrUPSBQJog714AhsDBQsJCAcCAiICBhUKCQgLAgQWAgMBAh4HAheAAAoJEDR2 H/jnrUPSgdkQAISaTk2D345ehXEkn5z2yUEjaVjHIE7ziqRaOgn/QanCgeTUinIv6L6QXUFvvIfH 1OLPwQ1hfvEg9NnNLyFezWSy6jvoVBTIPqicD/r3FkithnQ1IDkdSjrarPMxJkvuh3l7XZHo49GV HQ8i5zh5w4YISrcEtE99lJisvni2Jqx7we5tey9voQFDyM8jxlSWv3pmoUTCtBkX/eKHJXosgsuS B4TGDCVPOjla/emI5c9MhMG7O4WEEmoSdPbmraPw66YZD6uLyhV4DPHbiDWRzXWnClHSyjB9rky9 lausFxogvu4l9H+KDsXIadNDWdLdu1/enS/wDd9zh5S78rY2jeXaG4mnf4seEKamZ7KQ6FIHrcyP ezdDzssPQcTQcGRMQzCn6wP3tlGk7rsfmyHMlFqdRoNNv+ZER/OkmZFPW655zRfbMi0vtrqK2Awm 9ggobb1oktfd9PPNXMUY+DNVlgR2G7jLnenSoQausLUm0pHoNE8TWFv851Y6SOYnvn488sP1Tki5 F3rKwclawQFHUXTCQw+QSh9ay8xgnNZfH+u9NY7w3gPoeKBOAFcBc2BtzcgekeWS8qgEmm2/oNFV G0ivPQbRx8FjRKbuF7g3YhgNZZ0ac8FneuUtJ2PkSIFTZhaAiC0utvxk0ndmWFiW4acEkMZGrLaM L2zWNjrqwsD2zsFNBGiDvXgBEADCXQy1n7wjRxG12DOVADawjghKcG+5LtEf31WftHKLFbp/HArj BhkT6mj+CCI1ClqY+FYU5CK/s0ScMfLxRGLZ0Ktzawb78vOgBVFT3yB1yWBTewsAXdqNqRooaUNo 8cG/NNJLjhccH/7PO/FWX5qftOVUJ/AIsAhKQJ18Tc8Ik73v427EDxuKb9mTAnYQFA3Ev3hAiVbO 6Rv39amVOfJ8sqwiSUGidj2Fctg2aB5JbeMln0KCUbTD1LhEFepeKypfofAXQbGwaCjAhmkWy/q3 IT1mUrPxOngbxdRoOx1tGUC0HCMUW1sFaJgQPMmDcR0JGPOpgsKnitsSnN7ShcCr1buel7vLnUMD +TAZ5opdoF6HjAvAnBQaijtK6minkrM0seNXnCg0KkV8xhMNa6zCs1rq4GgjNLJue2EmuyHooHA4 7JMoLVHcxVeuNTp6K2+XRx0Pk4e2Lj8IVy9yEYyrywEOC5XRW37KJjsiOAsumi1rkvM7QREWgUDe Xs0+RpxI3QrrANh71fLMRo7LKRF3Gvw13NVCCC9ea20P4PwhgWKStkwO2NO+YJsAoS1QycMi/vKu 0EHhknYXamaSV50oZzHKmX56vEeJHTcngrM8R1SwJCYopCx9gkz90bTVYlitJa5hloWTYeMD7FNj Y6jfVSzgM/K4gMgUNDW/PPGeMwARAQABwsF2BBgBCAAgFiEEgnQYxPSsWOdyMMRzNHYf+OetQ9IF AmiDvXgCGwwACgkQNHYf+OetQ9LHDBAAhk+ab8+WrbS/b1/gYW3q1KDiXU719nCtfkUVXKidW5Ec Idlr5HGt8ilLoxSWT2Zi368iHCXS0WenGgPwlv8ifvB7TOZiiTDZROZkXjEBmU4nYjJ7GymawpWv oQwjMsPuq6ysbzWtOZ7eILx7cI0FjQeJ/Q2baRJub0uAZNwBOxCkAS6lpk5Fntd2u8CWmDQo4SYp xeuQ+pwkp0yEP30RhN2BO2DXiBEGSZSYh+ioGbCHQPIV3iVj0h6lcCPOqopZqyeCfigeacBI0nvN jHWz/spzF3+4OS+3RJvoHtAQmProxyGib8iVsTxgZO3UUi4TSODeEt0i0kHSPY4sCciOyXfAyYoD DFqhRjOEwBBxhr+scU4C1T2AflozvDwq3VSONjrKJUkhd8+WsdXxMdPFgBQuiKKwUy11mz6KQfcR wmDehF3UaUoxa+YIhWPbKmycxuX/D8SvnqavzAeAL1OcRbEI/HsoroVlEFbBRNBZLJUlnTPs8ZcU 4+8rq5YX1GUrJL3jf6SAfSgO7UdkEET3PdcKFYtS+ruV1Cp5V0q4kCfI5jk25iiz8grM2wOzVSsc l1mEkhiEPH87HP0whhb544iioSnumd3HJKL7dzhRegsMizatupp8D65A2JziW0WKopa1iw9fti3A aBeNN4ijKZchBXHPgVx+YtWRHfcm4l8= OpenPGP: url=https://posteo.de/keys/markus.probst@posteo.de.asc; preference=encrypt Synology uses a microcontroller in their NAS devices connected to a serial port to control certain LEDs, fan speeds, a beeper, to handle proper shutdown and restart, buttons and fan failures. This patch series depends on the rust led abstraction [1] and the rust serdev abstraction [2]. This only adds the core driver and led driver. The following rust abstractions would be required, to implement the remaining features: - hwmon (include/linux/hwmon.h) - input (include/linux/input.h) - sysoff handler + hardware protection shutdown (include/linux/reboot.h) [1] https://lore.kernel.org/rust-for-linux/20260207-rust_leds-v12-0-fdb518417b75@posteo.de/ [2] https://lore.kernel.org/rust-for-linux/20260313-rust_serdev-v3-0-c9a3af214f7f@posteo.de/ Signed-off-by: Markus Probst --- Changes in v3: - remove `default n` from Kconfig entry, as n is the default already. - select RUST_SERIAL_DEV_BUS_ABSTRACTIONS in Kconfig - add mfd rust abstraction - split core and led parts into their own driver. It should now be considered a MFD device. - split led part of dt binding into its own file - Link to v2: https://lore.kernel.org/r/20260308-synology_microp_initial-v2-0-9389963f31c5@posteo.de Changes in v2: - fix missing tabs in MAINTAINERS file - remove word binding from patch subject - add missing signed-off-by - add missing help entry in Kconfig - add missing spdx license headers - remove no-check{,-cpu}-fan properties from the dt-bindings and replace them with the check_fan module parameter - use patternProperties for leds in dt-bindings - license dt-binding as GPL-2.0-only OR BSD-2-Clause - move driver from staging tree into mfd tree and mark it as work in progress inside Kconfig - only register alert and usb led if fwnode is present - Link to v1: https://lore.kernel.org/r/20260306-synology_microp_initial-v1-0-fcffede6448c@posteo.de --- Markus Probst (7): rust: Add `parent_unchecked` function to `Device` rust: add basic mfd abstractions acpi: add acpi_of_match_device_ids mfd: match acpi devices against PRP0001 dt-bindings: mfd: Add synology,microp device mfd: Add synology microp core driver leds: add synology microp led driver .../devicetree/bindings/leds/synology,microp.yaml | 40 +++ .../devicetree/bindings/mfd/synology,microp.yaml | 51 ++++ MAINTAINERS | 14 + drivers/acpi/bus.c | 7 + drivers/leds/Kconfig | 11 + drivers/leds/Makefile | 1 + drivers/leds/leds_synology_microp.rs | 303 +++++++++++++++++++++ drivers/mfd/Kconfig | 11 + drivers/mfd/Makefile | 2 + drivers/mfd/mfd-core.c | 27 ++ drivers/mfd/synology_microp.rs | 46 ++++ include/acpi/acpi_bus.h | 2 + rust/bindings/bindings_helper.h | 1 + rust/kernel/device.rs | 25 +- rust/kernel/i2c.rs | 7 + rust/kernel/lib.rs | 1 + rust/kernel/mfd.rs | 114 ++++++++ rust/kernel/pci.rs | 7 + rust/kernel/platform.rs | 7 + rust/kernel/serdev.rs | 6 + rust/kernel/usb.rs | 7 + 21 files changed, 688 insertions(+), 2 deletions(-) --- base-commit: 3daa4f5dc6cc1ac1ab2f95b5b4c16bc5fb87f48f change-id: 20260306-synology_microp_initial-0f7dac7b7496 prerequisite-change-id: 20251217-rust_serdev-ee5481e9085c:v3 prerequisite-patch-id: 52b17274481cc770c257d8f95335293eca32a2c5 prerequisite-patch-id: eec47e5051640d08bcd34a9670b98804449cad52 prerequisite-patch-id: f24b68c71c3f69371e8ac0251efca0a023b31cc4 prerequisite-patch-id: 3dfc1f7e5ecd3e0dd65d676aeb16f55260847b25 prerequisite-change-id: 20251114-rust_leds-a959f7c2f7f9:v12 prerequisite-patch-id: 42c445ef6981e3a3740dbaaf307f4b810042e46f prerequisite-patch-id: 90c7b200cca722a592353885e21af069101c4e09 prerequisite-patch-id: c664a52faa3d47000d252eb7603c9c08382e868a