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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1BDCCC77B73 for ; Sat, 6 May 2023 11:44:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231960AbjEFLob (ORCPT ); Sat, 6 May 2023 07:44:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231891AbjEFLob (ORCPT ); Sat, 6 May 2023 07:44:31 -0400 Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F045E8A51 for ; Sat, 6 May 2023 04:44:29 -0700 (PDT) Received: by mail-lf1-x135.google.com with SMTP id 2adb3069b0e04-4f1411e8111so3103465e87.1 for ; Sat, 06 May 2023 04:44:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1683373468; x=1685965468; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=q6f9jWuVoP7kwY2he96mdyxDyH5d3ajIgODBTomeVrc=; b=QucCjkxwG5l9GY3Sm7/wlKyr8IB+QCy04jzf2BGU1hNHdd7b4DzG6wh+Tdsyxp7ZF8 N2kGx0Rq7izVIjn0ZmywEDY4XEE684fRzFezT1deehhopCHEDb2hFgPfQOYpwR6uY9IR dadqrDOX81amu0ok8BZZfOEQ27Vxa2X705lzFSyJgh8212JXSB/CuUxyqK/0On71QXQ2 0bNViAFOGNMvwwjdVYZloZt86VNP/xTwvPA4ajnX0Wf1vD5WHz15qdxV2DHrjigjdFMk TCC+Pfv7PUakj2sDknqFtm7kIRyNxWFcFw56h4eK+MHGHOgpYMGISSbEAe0bkJFpw7ak lfFg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683373468; x=1685965468; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=q6f9jWuVoP7kwY2he96mdyxDyH5d3ajIgODBTomeVrc=; b=apYEghQhcqjyVosuyJ0sdTqL1p4g+perRJIn81vtggJVikrGRaBsYfP02eH5WdkzQh AujtRJCuVfGwtfNWlUih35waIB/8w7glLGUwG0uzxHbgqlxuKQ/Wn3a/zgrtUw52oeQ+ DdTOPYJc6LG0xmhGrNpc8BIhex05D0ZE4bxnZDe5JqV3+auK/l56VNAQk0FRDEqfI5qj 2S0SM1rs0Js3iq3ODzJe5Wqxp3D6MDf43aVsEOpI6zdHpx5pN60IMMwN5yAs1+G+jTgH NwJM2EzkS3cvD/r58LXD2W5si4AL4vuTVoygI0AasM0gG8FtLzixXqyD652yeS0G47YA FGbg== X-Gm-Message-State: AC+VfDzzl+aQoR0vvF/PGsvF8Tct78Koi6ObpAQoc8+s4UTujg4gbyMV m6icHBHQXTnimjbgwUv609jfVA== X-Google-Smtp-Source: ACHHUZ4y43e5Mp+2TdKqczlOvmvm6e1/OEUZwFlv1bfcE5KHKPAIRxJg/k3J54ruSR5apgxmASlCwQ== X-Received: by 2002:ac2:4209:0:b0:4f1:430d:ca5c with SMTP id y9-20020ac24209000000b004f1430dca5cmr1350582lfh.56.1683373468256; Sat, 06 May 2023 04:44:28 -0700 (PDT) Received: from ?IPV6:2001:14ba:a0db:1f00::8a5? (dzdqv0yyyyyyyyyyybcwt-3.rev.dnainternet.fi. [2001:14ba:a0db:1f00::8a5]) by smtp.gmail.com with ESMTPSA id c10-20020ac2530a000000b004f00189e1dasm634622lfh.143.2023.05.06.04.44.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 06 May 2023 04:44:27 -0700 (PDT) Message-ID: <56da1bb2-86ea-e31e-15f3-5eb50e3000e1@linaro.org> Date: Sat, 6 May 2023 14:44:27 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH 2/8] PCI: qcom: Disable write access to read only registers for IP v2.9.0 Content-Language: en-GB To: Manivannan Sadhasivam , lpieralisi@kernel.org, kw@linux.com, bhelgaas@google.com Cc: robh@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, steev@kali.org, quic_srichara@quicinc.com References: <20230506073139.8789-1-manivannan.sadhasivam@linaro.org> <20230506073139.8789-3-manivannan.sadhasivam@linaro.org> From: Dmitry Baryshkov In-Reply-To: <20230506073139.8789-3-manivannan.sadhasivam@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On 06/05/2023 10:31, Manivannan Sadhasivam wrote: > In the post init sequence of v2.9.0, write access to read only registers > are not disabled after updating the registers. Fix it by disabling the > access after register update. > > Fixes: 0cf7c2efe8ac ("PCI: qcom: Add IPQ60xx support") > Signed-off-by: Manivannan Sadhasivam > --- > drivers/pci/controller/dwc/pcie-qcom.c | 3 +++ > 1 file changed, 3 insertions(+) Reviewed-by: Dmitry Baryshkov -- With best wishes Dmitry