From patchwork Fri Nov 17 20:12:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Lechner X-Patchwork-Id: 13459240 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4FBEC072A2 for ; Fri, 17 Nov 2023 20:13:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232279AbjKQUN5 (ORCPT ); Fri, 17 Nov 2023 15:13:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231921AbjKQUN4 (ORCPT ); Fri, 17 Nov 2023 15:13:56 -0500 Received: from mail-oi1-x22c.google.com (mail-oi1-x22c.google.com [IPv6:2607:f8b0:4864:20::22c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB664D6D for ; Fri, 17 Nov 2023 12:13:51 -0800 (PST) Received: by mail-oi1-x22c.google.com with SMTP id 5614622812f47-3b6ce6fac81so1439718b6e.1 for ; Fri, 17 Nov 2023 12:13:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1700252031; x=1700856831; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=rhumf+S/1zmUfncIex+xhepA+T9wIMv2vyztW6+G6BA=; b=lsqWx7hmnb2o+hQ6cvbPdIkA/XMtr4wg7c8GrbwyNDrm/DgKj/o//s90fnhi++6Jxj znF1XWc+e7ooIFcybvXIkUObb7zB5oPDOx5Zc8c0fcGXKL5spQ+FSqt3Ily4wVyE3gh2 0toW1bZPjSsHFkvfA1mEU+DOAvbUX1jvJUDUhp17PsPFv+VxCuYehVTusVJejhljbbLg xouR8VXVlRcsMOH+odeR6T/gwPjHnXVDKdfwhn3MGIf+fDMjxTgApoo2iwwbNHADb9SE wf26BdcW/VcqvbIU/g8j1HLvYh5oqbq7cRQDtZCJGO1jqtBijQ4WyEnp1lG4p97d7yXP 7Kvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700252031; x=1700856831; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=rhumf+S/1zmUfncIex+xhepA+T9wIMv2vyztW6+G6BA=; b=qG8nqTL/8fa3T7VyERMLSKcC06V0ZIZPTt3Nk7cIsTomoEgn4z7+JFkFZbD3uaMZaW vHme0FqKH2Wo3BF27y2Lmc2ygeQsEGDCZwgFdCkfyVsJll+f2tnuGn2AfbOf733ELTBq tpHCzLoISWj4bPW/PjAqxUd+CLeTaRV28ATM2Ay2uRCtL+dOSIh1XfyuxXxGYrsRmqnq EgfOQlGBT399CTMh1+DpSmGkM/nmNm4L5HbP2dhy/mVVr2DfYIGpF38VzJ7MbYx1xV3K iw060RUKKUHynvfRlKN27uN1mMLK4wPmAy5R/xoseXCMGWQ5jCjXi1ZvipfdK0mJxoJn 8Hfw== X-Gm-Message-State: AOJu0YwPT2akZZn60zUSFl97pqmXjlJ2ptZMsevOFK3xRE6g7yKZCPZV pUS6usUZ6ytzg6QxhWE73PJwobeA7ErBA36XQDHlEg== X-Google-Smtp-Source: AGHT+IGWJBiZ9GKDWx65XkxF5PxgPchzalM6vQQqXfeWw6zoM9oBeieyq2RA7kcI1qGBrs/oSdE4iQ== X-Received: by 2002:a05:6808:19a2:b0:3ab:870d:2d49 with SMTP id bj34-20020a05680819a200b003ab870d2d49mr584414oib.8.1700252031144; Fri, 17 Nov 2023 12:13:51 -0800 (PST) Received: from freyr.lechnology.com (ip98-183-112-25.ok.ok.cox.net. [98.183.112.25]) by smtp.gmail.com with ESMTPSA id l21-20020a544515000000b003a8560a9d34sm393814oil.25.2023.11.17.12.13.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Nov 2023 12:13:50 -0800 (PST) From: David Lechner To: linux-spi@vger.kernel.org, devicetree@vger.kernel.org Cc: David Lechner , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michael Hennerich , =?utf-8?q?Nuno_S=C3=A1?= , Lars-Peter Clausen , linux-kernel@vger.kernel.org Subject: [PATCH 00/14] spi: axi-spi-engine improvements Date: Fri, 17 Nov 2023 14:12:51 -0600 Message-ID: <20231117-axi-spi-engine-series-1-v1-0-cc59db999b87@baylibre.com> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 X-Mailer: b4 0.12.4 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org We are working towards adding support for the offload feature[1] of the AXI SPI Engine IP core. Before we can do that, we want to make some general fixes and improvements to the driver. In order to avoid a giant series with 35+ patches, we are splitting this up into a few smaller series. This first series mostly doing some housekeeping: * Convert device tree bindings to yaml. * Add a MAINTAINERS entry. * Clean up probe and remove using devm. * Separate message state from driver state. * Add support for cs_off and variable word size. Once this series is applied, we will follow up with a second series of general improvements, and then finally a 3rd series that implements the offload support. The offload support will also involve the IIO subsystem (a new IIO driver will depend on the new SPI offload feature), so I'm mentioning this now in case we want to do anything ahead of time to prepare for that (e.g. putting all of these changes on a separate branch). [1]: https://wiki.analog.com/resources/fpga/peripherals/spi_engine/offload --- David Lechner (14): dt-bindings: spi: axi-spi-engine: convert to yaml MAINTAINERS: add entry for AXI SPI Engine spi: axi-spi-engine: simplify driver data allocation spi: axi-spi-engine: use devm_spi_alloc_host() spi: axi-spi-engine: use devm action to reset hw on remove spi: axi-spi-engine: use devm_request_irq() spi: axi-spi-engine: use devm_spi_register_controller() spi: axi-spi-engine: check for valid clock rate spi: axi-spi-engine: move msg state to new struct spi: axi-spi-engine: use message_prepare/unprepare spi: axi-spi-engine: remove completed_id from driver state spi: axi-spi-engine: remove struct spi_engine::msg spi: axi-spi-engine: add support for cs_off spi: axi-spi-engine: add support for any word size .../devicetree/bindings/spi/adi,axi-spi-engine.txt | 31 -- .../bindings/spi/adi,axi-spi-engine.yaml | 66 ++++ MAINTAINERS | 10 + drivers/spi/spi-axi-spi-engine.c | 399 +++++++++++++-------- 4 files changed, 329 insertions(+), 177 deletions(-) --- base-commit: 6f9da18171889fae105e1413a825c53fa5aab40c change-id: 20231117-axi-spi-engine-series-1-7c76311440f9