From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EBEAECD6E54 for ; Sat, 30 May 2026 01:14:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C8EBC11268B; Sat, 30 May 2026 01:14:00 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="OgWLFvDJ"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id EF1B6112684 for ; Sat, 30 May 2026 01:13:53 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id A3AD340DA3; Sat, 30 May 2026 01:13:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 796E5C2BCB8; Sat, 30 May 2026 01:13:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1780103633; bh=Eq5xsqcn55u0Ff87cFqRGAjzzecSn1a5prQhi/eFhS8=; h=From:Subject:Date:To:Cc:Reply-To:From; b=OgWLFvDJJDAyUHeWDwyu/KZ+tVb5iX/GZ05RTn+0zEmx/Yfoh8hN7lKTw6tIvfJPN 2MmZ4dnan60TKxz4R/wCG3RwpXc5jFxJJtUDlkGfocuirqR6hjulEJDV4hDc51YWYW J6645RHwX3SP4Kx7irPoqQv7xBnhIVIE8pMNX/2CYHgjJy8ILENH2AhwZBZMF+sMIu jKWlJI7cApgMjNstMa57+UL/SgcIXILqECj7uMlqf7YBkYYzfm2X2nt3e1beNB53VY UfSBTyj0v7hxoQksKGdSl83bocjpWjC1vvkjk/nGhNR6fadTttgPCGQp4G1TYp4KSM XNwqYNnYkR/Vw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6F433CD6E52; Sat, 30 May 2026 01:13:53 +0000 (UTC) From: Markus Probst via B4 Relay Subject: [PATCH v8 0/5] rust: add basic serial device bus abstractions Date: Sat, 30 May 2026 03:13:48 +0200 Message-Id: <20260530-rust_serdev-v8-0-2a95f1da22a7@posteo.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAM05GmoC/23S227DIAwG4FepuB4RBsyhV32PaZpI4rTR1qaDN NpU9d1H0k1L0l0hI32/wPaVJYotJbbdXFmkoU1td8qFe9qw6hBOe+JtnWsmhUSQYHm8pP41o5o GToTaAXnhsGJZnCM17eeU9vyS60Ob+i5+TeEDjLc/OVIscgbggpPWRqM11kjYnbvUU1fUxMacQ f5aI5QwSytH60upSi1Libi2amZBLa3KtvJBhUaCbmyztvrPaoCl1dk6jeSNqIyRdm1xZtf/xWz RkiuDQPCNWlszt8ueDyZbsMp6VyNBeLB2bv3S2mxF7XxlPZRYubm93QcY6eOSt6C/T5EdKaUwb cF2M2VifjFKLUShfC684cDr8BZ3bxRP9F50cT+uwqOTmE8voQCpjXf/szIk4lV3PLb9djPYIve 8wvy22zefPfmyqQIAAA== X-Change-ID: 20251217-rust_serdev-ee5481e9085c To: Rob Herring , Greg Kroah-Hartman , Jiri Slaby , Miguel Ojeda , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Kari Argillander , "Rafael J. Wysocki" , Viresh Kumar , Boqun Feng , David Airlie , Simona Vetter , Boqun Feng Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-pm@vger.kernel.org, driver-core@lists.linux.dev, dri-devel@lists.freedesktop.org, Markus Probst X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=5465; i=markus.probst@posteo.de; h=from:subject:message-id; bh=Eq5xsqcn55u0Ff87cFqRGAjzzecSn1a5prQhi/eFhS8=; b=owEBiQJ2/ZANAwAIATR2H/jnrUPSAcsmYgBqGjnOU8wGXkRMtzMSZNOKQGnidFid2NrtiMOVT y1Gc4nZjzmJAk8EAAEIADkWIQSCdBjE9KxY53IwxHM0dh/4561D0gUCaho5zhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQNHYf+OetQ9KVTw//WE+ZArGGFvVHz8oNLVGejz+CKNCAEfB bTVVd7w+3ETjYK5VfisxskjRukKxBeZh87y6tweGxcIdTPq/23DyrYL+FoxanZRlUf9iV+NeX4Z KrPY6Rsvjxw5cNGKwJ7SRryRFcJJCnNCVCBGyO+Odmk2n3ln3XYE6RfWv8V0RqpheLK3T8bpAy1 SU9Q8NGz0mHH2xQmZ9+jGk6nagxWtoEziz+JjjP9psX5SIZmkmawtNOmoHlqbv1mRKs7UBLWGxM N8Aj7k4mAqHloHWEpMYyZd3uHbEBRByZNM1cobzpuvFILYIpImB/YsFu602Dak+vWUPbU13Df9W i16wqpxig6kmDFkDV/wJtFIyE4kgSAGgI5SpE/GYA9yLtRWa8Buvdpo5AwkmNfCnhcfWsZSLFp2 UYJaz/YFVybWH/YhtXwvDdC8zwuOnDRpj19/uluKMSaGjIlBrEZM0MAc3lqomrhYqck8vygv/3q R+/iHPdECBi4C89koF2jlFblYE3pHT7ei2fLtqWB/9IjP6tlsjLfI+IxBpwvEbr+YjKnZmzWEco fd0hF9mO3LVHqbqyCrmzQw0oCrUmJ14fx71LlPyVRGbr4q+YSkQR4bsSNl5XOls9HtMFJFqGZR6 I3thtfu+CexK61oQLfAgJ9U4OuEo5VmeAWZOE2h+vdjH6oNaMrFw= X-Developer-Key: i=markus.probst@posteo.de; a=openpgp; fpr=827418C4F4AC58E77230C47334761FF8E7AD43D2 X-Endpoint-Received: by B4 Relay for markus.probst@posteo.de/default with auth_id=680 X-Original-From: Markus Probst X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: markus.probst@posteo.de Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This patch series adds the serdev device bus rust abstraction into the kernel. This abstraction will be used by a driver, which targets the MCU devices in Synology devices. Kari Argillander also messaged me, stating that he wants to write a watchdog driver with this abstraction (needing initial device data). This series depends on [1]. [1] https://lore.kernel.org/rust-for-linux/20260525202921.124698-1-dakr@kernel.org/ Signed-off-by: Markus Probst --- Changes in v8: - adapted to driver-lifetime v5 patch series - add MAINTAINERS file patch - Link to v7: https://patch.msgid.link/20260429-rust_serdev-v7-0-0d89c791b5c8@posteo.de Changes in v7: - adapted to driver-lifetime patch series - Link to v6: https://patch.msgid.link/20260427-rust_serdev-v6-0-173798d5e1a3@posteo.de Changes in v6: - rebased onto v7.1-rc1 - Link to v5: https://patch.msgid.link/20260420-rust_serdev-v5-0-57e8ba0519f3@posteo.de Changes in v5: - fix typo in documentation - Link to v4: https://lore.kernel.org/r/20260411-rust_serdev-v4-0-845e960c6627@posteo.de Changes in v4: - fixed not selecting rust serdev abstraction in sample - Link to v3: https://lore.kernel.org/r/20260313-rust_serdev-v3-0-c9a3af214f7f@posteo.de Changes in v3: - fix vertical import style - add Kconfig entry for the rust abstraction - fix documentation in include/linux/serdev.h - rename private_data to rust_private_data - fix `complete_all` <-> `wait_for_completion` typo - move drvdata_borrow call after the completion - Link to v2: https://lore.kernel.org/r/20260306-rust_serdev-v2-0-e9b23b42b255@posteo.de Changes in v2: - fix documentation in `serdev::Driver::write` and `serdev::Driver::write_all` - remove use of `dev_info` in probe from the sample - remove `properties_parse` from the sample - add optional `baudrate` property to the sample - remove 1. patch - remove `TryFrom<&device::Device> for &serdev::Device` implementation - fix import style - add patch to return reference in `devres::register` to fix safety issue - add patch to add private data to serdev_device, to fix `Device.drvdata()` from failing - simplify abstraction by removing ability to receive the initial transmission. It may be added later in a separate patch series if needed. - Link to v1: https://lore.kernel.org/r/20251220-rust_serdev-v1-0-e44645767621@posteo.de --- Markus Probst (5): rust: devres: return reference in `devres::register` serdev: add rust private data to serdev_device rust: add basic serial device bus abstractions samples: rust: add Rust serial device bus sample device driver MAINTAINERS: serdev: Add self for serdev MAINTAINERS | 5 +- drivers/tty/serdev/Kconfig | 7 + include/linux/serdev.h | 15 +- rust/bindings/bindings_helper.h | 1 + rust/helpers/helpers.c | 1 + rust/helpers/serdev.c | 22 ++ rust/kernel/cpufreq.rs | 3 +- rust/kernel/devres.rs | 15 +- rust/kernel/drm/driver.rs | 3 +- rust/kernel/lib.rs | 2 + rust/kernel/serdev.rs | 548 +++++++++++++++++++++++++++++++++++++ samples/rust/Kconfig | 11 + samples/rust/Makefile | 1 + samples/rust/rust_driver_serdev.rs | 91 ++++++ 14 files changed, 714 insertions(+), 11 deletions(-) --- base-commit: 9e171fc1d7d7ab847a750c03571c87ac3c17bd84 change-id: 20251217-rust_serdev-ee5481e9085c prerequisite-message-id: 20260505152400.3905096-1-dakr@kernel.org prerequisite-patch-id: d2aebf69b153c039bbed1d0ed26906708fd22534 prerequisite-patch-id: 84b28da2f5de20fc1785095c647b2ffc35d969a5 prerequisite-patch-id: 67318671a5eed5fb4ad23a450f1cf0e442bf8ca2 prerequisite-message-id: 20260525202921.124698-1-dakr@kernel.org prerequisite-patch-id: b84db329d4372a175cb8d49e4e88c3eecf7eb228 prerequisite-patch-id: 2c30303f409cc8288cc87e241920219f5ddd8390 prerequisite-patch-id: 4e4f0ad370d763ad00b0f75b91fa216f2cc95953 prerequisite-patch-id: 5bcd6b37f3498feebda275dfef78136eba34004e prerequisite-patch-id: 872b0982f3e5e7d1698d9df3b325e4cd27b27789 prerequisite-patch-id: 3a3c7749e017d9335f58497404d1350e96caf471 prerequisite-patch-id: 3526c9154f581497a11465b936d83ef61a875454 prerequisite-patch-id: 65d8c757b52475c2acc7d22ddc92cd3f0152b55d prerequisite-patch-id: 4bd31f1414d5248dc080884caadf5f21684a8427 prerequisite-patch-id: 7beadbb0da3e589ed86d12f512d1c83427dd82b4 prerequisite-patch-id: 12cd0f67ffd27347f90c065db491945908206b7f prerequisite-patch-id: 4642e31f66331f6c3b579377111ea733dbb3a11c prerequisite-patch-id: 52d67b40b4396c741e2222d6a5bc7927abcb77aa prerequisite-patch-id: 74ca82ff26cf9c7a993757c87db8be62006e820f prerequisite-patch-id: 466fb9fa7febbffd8ef51b311c7d9893c11fc0f0 prerequisite-patch-id: e515cd98b06e26721cbbe6a4fbacd251d0073b63 prerequisite-patch-id: 8dc8e75d9f6499a554ef7e474bbacdbf3660a9f2 prerequisite-patch-id: 5fdb9f71dca2f44dd293760a60db125b770f1f55 prerequisite-patch-id: c766a24c2d5064f5ec09daada0b8e8fba862d3aa prerequisite-patch-id: b768f6456d35fa7a80c015e34bbdba6082dbd593 prerequisite-patch-id: 6a8b17234f12f7084e6e2ce843a7031b0a891ce4 prerequisite-patch-id: 98b2deb9e60c1f28f90c5ee34fd608aaa9fd9420 prerequisite-patch-id: 774b29be66e641ee50cedb4704cf49d8b9fabf50 prerequisite-patch-id: cf95dc936cfc4b3a7a363435a51a48d9009645b3