From patchwork Thu May 6 01:10:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Packham X-Patchwork-Id: 432289 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9442BC43461 for ; Thu, 6 May 2021 01:10:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 72FA161168 for ; Thu, 6 May 2021 01:10:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230090AbhEFBLY (ORCPT ); Wed, 5 May 2021 21:11:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230029AbhEFBLY (ORCPT ); Wed, 5 May 2021 21:11:24 -0400 Received: from gate2.alliedtelesis.co.nz (gate2.alliedtelesis.co.nz [IPv6:2001:df5:b000:5::4]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 27726C061574 for ; Wed, 5 May 2021 18:10:27 -0700 (PDT) Received: from svr-chch-seg1.atlnz.lc (mmarshal3.atlnz.lc [10.32.18.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by gate2.alliedtelesis.co.nz (Postfix) with ESMTPS id D9E60891AD; Thu, 6 May 2021 13:10:20 +1200 (NZST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alliedtelesis.co.nz; s=mail181024; t=1620263420; bh=47/c17VIj6d/N+J2xs5Gz7yzioMSYApf0E6Fif/tnbc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JyQaXjAOFRiH5az9Xk51CCIfcTxom8DwyWi3k49qTPiq0m9dv7Iagw6AQAwpvNufv 6Tqj41Xw28U5FQNb4vfQhZ5IWAFPHT0ZsjISiTFg0/xEg4QZul7q9rLT8AQf57RuU2 /gPrtasmW4mmfAl7CJzB/DigtN3sxl1KzfgJdWi9Li9QLx/9kKz+1PcG6Tjh2v/QK+ cW2sYfT8zFES9emzUbtcR862QBxdPP6u0/uaOjfWvlXbZJQTm1Pl2LGeEldIulrPHC hf4b4BM136E6ASCFKfoWFMqBodLsFJCC/rcN9G05DPDHeEgNr8tIHHcZnItfQJzqJm /1ErT40VFZUvw== Received: from pat.atlnz.lc (Not Verified[10.32.16.33]) by svr-chch-seg1.atlnz.lc with Trustwave SEG (v8, 2, 6, 11305) id ; Thu, 06 May 2021 13:10:20 +1200 Received: from chrisp-dl.ws.atlnz.lc (chrisp-dl.ws.atlnz.lc [10.33.22.20]) by pat.atlnz.lc (Postfix) with ESMTP id B437913ECA6; Thu, 6 May 2021 13:10:20 +1200 (NZST) Received: by chrisp-dl.ws.atlnz.lc (Postfix, from userid 1030) id B1180283A60; Thu, 6 May 2021 13:10:20 +1200 (NZST) From: Chris Packham To: wsa@kernel.org, andriy.shevchenko@linux.intel.com, andy.shevchenko@gmail.com, robh+dt@kernel.org, mpe@ellerman.id.au Cc: linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Chris Packham Subject: [PATCH 1/3] dt-bindings: i2c: mpc: Add fsl, i2c-erratum-a004447 flag Date: Thu, 6 May 2021 13:10:12 +1200 Message-Id: <20210506011015.17347-2-chris.packham@alliedtelesis.co.nz> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210506011015.17347-1-chris.packham@alliedtelesis.co.nz> References: <20210506011015.17347-1-chris.packham@alliedtelesis.co.nz> MIME-Version: 1.0 X-SEG-SpamProfiler-Analysis: v=2.3 cv=B+jHL9lM c=1 sm=1 tr=0 a=KLBiSEs5mFS1a/PbTCJxuA==:117 a=5FLXtPjwQuUA:10 a=3WbeyVfOhAup7pk4KgsA:9 X-SEG-SpamProfiler-Score: 0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document the fsl,i2c-erratum-a004447 flag which indicates the presence of an i2c erratum on some QorIQ SoCs. Signed-off-by: Chris Packham --- Documentation/devicetree/bindings/i2c/i2c-mpc.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml b/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml index 7b553d559c83..98c6fcf7bf26 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml +++ b/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml @@ -46,6 +46,13 @@ properties: description: | I2C bus timeout in microseconds + fsl,i2c-erratum-a004447: + $ref: /schemas/types.yaml#/definitions/flag + description: | + Indicates the presence of QorIQ erratum A-004447, which + says that the standard i2c recovery scheme mechanism does + not work and an alternate implementation is needed. + required: - compatible - reg