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 X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 ECE04C47082 for ; Thu, 3 Jun 2021 17:18:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D5806613DE for ; Thu, 3 Jun 2021 17:18:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232859AbhFCRU1 (ORCPT ); Thu, 3 Jun 2021 13:20:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:50502 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233158AbhFCRRZ (ORCPT ); Thu, 3 Jun 2021 13:17:25 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1E7CB600D3; Thu, 3 Jun 2021 17:11:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622740294; bh=LlFPovvGoLlrINgljP3dDSQqB1UiS3h0/RIhUuNscvQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nfnKtAYdGnlw8DdvkQyO2J0gpLT+BKr2ijTjz3eiSl8cBXnbruRX2KrNuEU3ain5k pFyu6XC/YNttNwWVuerib7pxCBowASNYyHLH0TAQSfRh9iePzlGvPvUiog02Zv+npe FsQXttM2MeQRsFuAyGA/sfceRq/V/uk3Ks0bZEt1Vpz/apwaCeZhOP4uM3euPTuWNv slTKwdwIKNsKYCYy0Xe6Ydjsn65Qsk8N4C8DiJC4yQyN8xjMiIy/KeG9x1+O8fU8Cy h0NcrbCRiQahblkygGIhGvqv9NMaRxRDUUBCRQzgUiK2noWeu6fdzpwuX26luyNiGM E9si/ioLTDUuQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chris Packham , Michael Ellerman , Wolfram Sang , Sasha Levin , devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 4.4 15/15] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers Date: Thu, 3 Jun 2021 13:11:14 -0400 Message-Id: <20210603171114.3170086-15-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210603171114.3170086-1-sashal@kernel.org> References: <20210603171114.3170086-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chris Packham [ Upstream commit 19ae697a1e4edf1d755b413e3aa38da65e2db23b ] The i2c controllers on the P1010 have an erratum where the documented scheme for i2c bus recovery will not work (A-004447). A different mechanism is needed which is documented in the P1010 Chip Errata Rev L. Signed-off-by: Chris Packham Acked-by: Michael Ellerman Signed-off-by: Wolfram Sang Signed-off-by: Sasha Levin --- arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi index af12ead88c5f..404f570ebe23 100644 --- a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi @@ -122,7 +122,15 @@ memory-controller@2000 { }; /include/ "pq3-i2c-0.dtsi" + i2c@3000 { + fsl,i2c-erratum-a004447; + }; + /include/ "pq3-i2c-1.dtsi" + i2c@3100 { + fsl,i2c-erratum-a004447; + }; + /include/ "pq3-duart-0.dtsi" /include/ "pq3-espi-0.dtsi" spi0: spi@7000 { -- 2.30.2