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=-2.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 814D4C433F4 for ; Thu, 30 Aug 2018 19:05:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3EC582082A for ; Thu, 30 Aug 2018 19:05:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DiUhoAcq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3EC582082A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727320AbeH3XIr (ORCPT ); Thu, 30 Aug 2018 19:08:47 -0400 Received: from mail-lj1-f196.google.com ([209.85.208.196]:42322 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726122AbeH3XIq (ORCPT ); Thu, 30 Aug 2018 19:08:46 -0400 Received: by mail-lj1-f196.google.com with SMTP id f1-v6so8164907ljc.9; Thu, 30 Aug 2018 12:05:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=OtYGMvIeMhIf4XN6ecDXRafl9QlB7yiIQ7VHzAiBRGQ=; b=DiUhoAcqXzbg2eq6edaBKlgkjVckATD6giqybsejwuHm3o0Idgp6H4Jp2+VAS5B/n8 zm7PNbiUoloUtx2GDBfm4xvB6w7Llkvi40Gag9zvGkFgDE7JJ/ZyxUhSLZiKwEAHQOMi 9Z8wOX+jqYHL4zkneUJOCR8Fo0SNDNn8LsGvDA/aJ5+D/rhX4x/U9RRHKX6BMPihrsCu ZPFVW7q2Ut5oegm/sHqJb9NwBSu6XlQfQjuFZAWwJGSmLwcNuY83z2D48C8MAXzHISUW pyMu2ycbqMaxbyBTphK4JUAgkbRS77xAqL4Cv0VLzDmqCaK17uV1OX2N2BNWVU3zjqv5 BQBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=OtYGMvIeMhIf4XN6ecDXRafl9QlB7yiIQ7VHzAiBRGQ=; b=n1ULE5ONuJQGXARUvhnNYp9bSmeyJcXr5wAbBW8KsbDjrcWHl6N1DUfWqj24+cxXeG Q8jkr1YgJ58C9TLSGqRO2s4qoYIJMA0ExhGKW/L4nFUfOc93tD9k7wYmXigMLTwiVr/Y AjxFJA1kTV8B2C7JnGyPVz7jF5eQWbXzP9sYTY2Fs6kj4nGPUQay5mLj5yKXrd7DQ6lG t36qjg7RyjFQgGNT14E8VBR+x7Qxv45qBYWhE+WCMSk5iVLWrnN9b402JZGrpVu5KIdf 0FCEfy8Y3I+oym5c6gr2+9ThGNA+HPzzVVn762cPMElpSlBiITqcOTgSuaCkihJtDDII CmLQ== X-Gm-Message-State: APzg51CuN6dk2ev4DjgBWSR0oM18r92VMNPYa7IJH7+elOoDE8nCWsO6 7mlqXH8kYEKkYKefxsE9C9o= X-Google-Smtp-Source: ANB0VdZf0ExcVcXpGzkqMLO6NmzLlKyhDJO1zFSUC0Yoid2iC/rMM+DtYXKUYqq2p7Glkt2v22IvWw== X-Received: by 2002:a2e:85d5:: with SMTP id h21-v6mr7986772ljj.103.1535655908193; Thu, 30 Aug 2018 12:05:08 -0700 (PDT) Received: from localhost.localdomain (109-252-90-13.nat.spd-mgts.ru. [109.252.90.13]) by smtp.gmail.com with ESMTPSA id q128-v6sm1373081ljq.72.2018.08.30.12.05.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 Aug 2018 12:05:07 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Peter De Schrijver Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 1/2] ARM: tegra: Switch CPU to PLLP before powergating on Tegra30 Date: Thu, 30 Aug 2018 22:04:53 +0300 Message-Id: <20180830190454.8729-2-digetx@gmail.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180830190454.8729-1-digetx@gmail.com> References: <20180830190454.8729-1-digetx@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PLLX is getting turned by the HW logic when CPU enters powergated state and there is no enough time for PLLX to re-lock on exiting the low-power state, this causes memory errors coming from misbehaving CPU and eventual hanging of the system. Signed-off-by: Dmitry Osipenko --- arch/arm/mach-tegra/sleep-tegra30.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S index dd4a67dabd91..d572d4b860be 100644 --- a/arch/arm/mach-tegra/sleep-tegra30.S +++ b/arch/arm/mach-tegra/sleep-tegra30.S @@ -298,8 +298,8 @@ ENDPROC(tegra30_sleep_cpu_secondary_finish) * Switches the CPU to enter sleep. */ ENTRY(tegra30_tear_down_cpu) + bl tegra_switch_cpu_to_pllp mov32 r6, TEGRA_FLOW_CTRL_BASE - b tegra30_enter_sleep ENDPROC(tegra30_tear_down_cpu) -- 2.18.0