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 E2C4BC47082 for ; Thu, 3 Jun 2021 17:15:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBCFA613F1 for ; Thu, 3 Jun 2021 17:15:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233433AbhFCRRB (ORCPT ); Thu, 3 Jun 2021 13:17:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:43558 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231673AbhFCRM6 (ORCPT ); Thu, 3 Jun 2021 13:12:58 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5DF7361423; Thu, 3 Jun 2021 17:10:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622740227; bh=DlRPQKg57hZnvopmZek5Qh2qaefReJ5UVZdEQVMp8F8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UY9RdR3W+Jro6z/0mVcttqNOgzgKhj5wwbggW3HDGzohrlgbmh72B12KnYY9qiYLx qhY6NYKWNvfPn73789ERF0qwav0kkU3p+diMYpHcrNKJmLqyPnSXf+sHPCEkL08F+J w+kePZqEkf845lmDZwCDBKUww0O6brWKcXQWuX3DKBauqYR3LOh3IumBoa7p2QDZZa oAjFE250xREDbf6TvpEhu/e30ooXLIrMO0RPGv9dX6BRwjR2g1Yh5KvyQhQz7QpIsY GSCelYZ/grJ6hQ9iSY28rwfnBa8Brb5oACLSguoRSYrdxytXHxgNUVzybRyEYLELQp myv/dF/Mg0qCA== 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 4.19 22/23] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers Date: Thu, 3 Jun 2021 13:09:58 -0400 Message-Id: <20210603170959.3169420-22-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210603170959.3169420-1-sashal@kernel.org> References: <20210603170959.3169420-1-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 7adc7b225cddcfd0f346d10144fd7a3d3d9f9ea7 ] The i2c controllers on the P2040/P2041 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 P2040 Chip Errata Rev Q (latest available at the time of writing). Signed-off-by: Chris Packham Acked-by: Michael Ellerman Signed-off-by: Wolfram Sang Signed-off-by: Sasha Levin --- arch/powerpc/boot/dts/fsl/p2041si-post.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi index 51e975d7631a..8921f17fca42 100644 --- a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi @@ -389,7 +389,23 @@ sdhc@114000 { }; /include/ "qoriq-i2c-0.dtsi" + i2c@118000 { + fsl,i2c-erratum-a004447; + }; + + i2c@118100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-i2c-1.dtsi" + i2c@119000 { + fsl,i2c-erratum-a004447; + }; + + i2c@119100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-duart-0.dtsi" /include/ "qoriq-duart-1.dtsi" /include/ "qoriq-gpio-0.dtsi" -- 2.30.2 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=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 AB71EC47099 for ; Thu, 3 Jun 2021 17:11:25 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5AB376143F for ; Thu, 3 Jun 2021 17:11:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5AB376143F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Fwsqw3Wnqz309K for ; Fri, 4 Jun 2021 03:11:24 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=UY9RdR3W; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=sashal@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=UY9RdR3W; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Fwsps3zs9z3cDS for ; Fri, 4 Jun 2021 03:10:29 +1000 (AEST) Received: by mail.kernel.org (Postfix) with ESMTPSA id 5DF7361423; Thu, 3 Jun 2021 17:10:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622740227; bh=DlRPQKg57hZnvopmZek5Qh2qaefReJ5UVZdEQVMp8F8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UY9RdR3W+Jro6z/0mVcttqNOgzgKhj5wwbggW3HDGzohrlgbmh72B12KnYY9qiYLx qhY6NYKWNvfPn73789ERF0qwav0kkU3p+diMYpHcrNKJmLqyPnSXf+sHPCEkL08F+J w+kePZqEkf845lmDZwCDBKUww0O6brWKcXQWuX3DKBauqYR3LOh3IumBoa7p2QDZZa oAjFE250xREDbf6TvpEhu/e30ooXLIrMO0RPGv9dX6BRwjR2g1Yh5KvyQhQz7QpIsY GSCelYZ/grJ6hQ9iSY28rwfnBa8Brb5oACLSguoRSYrdxytXHxgNUVzybRyEYLELQp myv/dF/Mg0qCA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 22/23] powerpc/fsl: set fsl, i2c-erratum-a004447 flag for P2041 i2c controllers Date: Thu, 3 Jun 2021 13:09:58 -0400 Message-Id: <20210603170959.3169420-22-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210603170959.3169420-1-sashal@kernel.org> References: <20210603170959.3169420-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , devicetree@vger.kernel.org, Wolfram Sang , Chris Packham , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Chris Packham [ Upstream commit 7adc7b225cddcfd0f346d10144fd7a3d3d9f9ea7 ] The i2c controllers on the P2040/P2041 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 P2040 Chip Errata Rev Q (latest available at the time of writing). Signed-off-by: Chris Packham Acked-by: Michael Ellerman Signed-off-by: Wolfram Sang Signed-off-by: Sasha Levin --- arch/powerpc/boot/dts/fsl/p2041si-post.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi index 51e975d7631a..8921f17fca42 100644 --- a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi @@ -389,7 +389,23 @@ sdhc@114000 { }; /include/ "qoriq-i2c-0.dtsi" + i2c@118000 { + fsl,i2c-erratum-a004447; + }; + + i2c@118100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-i2c-1.dtsi" + i2c@119000 { + fsl,i2c-erratum-a004447; + }; + + i2c@119100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-duart-0.dtsi" /include/ "qoriq-duart-1.dtsi" /include/ "qoriq-gpio-0.dtsi" -- 2.30.2