From patchwork Sun Mar 12 23:36:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Shyti X-Patchwork-Id: 662503 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 9B57CC6FD1F for ; Sun, 12 Mar 2023 23:36:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229494AbjCLXgq (ORCPT ); Sun, 12 Mar 2023 19:36:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33058 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229437AbjCLXgp (ORCPT ); Sun, 12 Mar 2023 19:36:45 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38337298F1; Sun, 12 Mar 2023 16:36:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id BA88EB80D65; Sun, 12 Mar 2023 23:36:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2F45C433EF; Sun, 12 Mar 2023 23:36:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1678664201; bh=AfguMXV3wShDapxuddDUc/QN7LO/Tpvnjh3XCp7WNHA=; h=From:To:Cc:Subject:Date:From; b=LCKOaW0VKSlJsBj2xi4Mvq4DfO1euPd1SddYnfYB68ETOSYnh/FV+twiGUJoM2Via ynf5QVNZZbAE+7fXy08tCa52TrvvrBScw+bg7ZIde7Yp7KOGRgD3tDeJJOwmatk1l0 Dh3BnF20/iu87Y+pMDbVCh6sAY/18tDlzPWTwR7R5OiAKS3mSGJCg6GrRQ+4p9G4fm 7x/9Ep/PNBAxazQ4krCCf+yuaaevvo95w2sC3qOKwto+B083EysXNXNPg5CqhNdtVn c9i02/u69JVKyz40oVq5Sb6Og91srpX/hFY7jhHjzAhtXOGLM9m0HiKutchOo1qbWB zSb95utvcYneg== From: Andi Shyti To: linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Wolfram Sang , Rob Herring , Krzysztof Kozlowski , Chris Packham , Ryan Chen , Andi Shyti Subject: [PATCH v3 0/3] Add the clock stretching i2c property Date: Mon, 13 Mar 2023 00:36:10 +0100 Message-Id: <20230312233613.303408-1-andi.shyti@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hello, fter a discussion between Krzysztof and Ryan[1], it has become apparent that the i2c binding is lacking the definition of a property that needs to be added at a more generic level. This property is also used by the mpc i2c controller, which has been updated in the second patch. The DTS schema change has been sent as github pull reqest[2]. Thanks Krzysztof and Chris for the reviews. Thank you, Andi [1] https://lore.kernel.org/all/c41ee6b5-ddb4-1253-de54-a295b3bab2cc@linaro.org/ [2] https://github.com/devicetree-org/dt-schema/pull/102 Changelog ========= v2 -> v3: - Chris recommended to use of_property_read_u32() instead of of_get_property(). Because there were two use of it I added the suggested cleanup in a separate patch. - Added Chris r-b in patch 3. v1 -> v2: - Removed the binding patch and send through a different channel - To ensure back compatibility, which was broken in v1, the legacy "fsl,timeout" has not been removed and marked as deprecated. In the driver the that property is checked anyway as a fallback in case the main i2c-scl-clk-low-timeout-ms is missing. Andi Shyti (3): dt-bindings: i2c: mpc: Mark "fsl,timeout" as deprecated i2c: mpc: Use of_property_read_u32 instead of of_get_property i2c: mpc: Use i2c-scl-clk-low-timeout-ms i2c property .../devicetree/bindings/i2c/i2c-mpc.yaml | 3 +- drivers/i2c/busses/i2c-mpc.c | 35 ++++++++++++------- 2 files changed, 25 insertions(+), 13 deletions(-)