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=-11.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 E0613C433FE for ; Wed, 8 Sep 2021 05:12:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C06C960041 for ; Wed, 8 Sep 2021 05:12:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233103AbhIHFNa (ORCPT ); Wed, 8 Sep 2021 01:13:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232097AbhIHFN3 (ORCPT ); Wed, 8 Sep 2021 01:13:29 -0400 Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 29EC4C061757 for ; Tue, 7 Sep 2021 22:12:22 -0700 (PDT) Received: by mail-lj1-x229.google.com with SMTP id s12so1471690ljg.0 for ; Tue, 07 Sep 2021 22:12:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=cEg9j5PHH4GrveK8S9hlpJRiAHD5wKCWS95UHHv0q00=; b=N4InN9Bj8fK6jG56hBNBpJBevxf+zsjhr7g+bMTchVecF318z1bCZNQ7q8LjKHJ+rY FgI1xNRgaljSEjyEWdJkhHCYF7JA+S7v3h1Kmo8J0p5GjZuXB38rvOI1xcsBxJS0cNGf IEReRyPR8+eORygkamDmkpP366EyiO4cBCUPc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cEg9j5PHH4GrveK8S9hlpJRiAHD5wKCWS95UHHv0q00=; b=RuiP2RkyUn1JX2RpE+iXUwHfkM5Ou2kqATfxFeJc2xZ6BDnklbjvAWtcHvCIxDW4P0 2RZNA/PqX+vR7cwaUA3dRyxz9l3PBG9zqHylWPC9Cl6UaE0RtW+33j/SR899gpmXjLje iz7r6hHdgEjAefEdDWngiM9sodwoazwR+wt3NMvWyxDXKYoSnJH0GrcOzPxCDL+okDn4 42Rtje+qGTyNjtj2EYBULU2niHRWI2XKvOGJXy+reN5c/oDhvAxrwz4oGFNJHIFo2rwR VDoBOE4XRsQdaxUlqb3/uMfFfmYQf6f6p+SXWt1/cvn+FGBdPKnKxijAuAuMLXHRlrnW XoEg== X-Gm-Message-State: AOAM530JH1OIOHTpsnOYQUuazA6oNRueQQhyHW+XpOGhDRaAaXRV+Iv7 d+AcAdon5Xi9NuaGujhTzt7Bqb1PUKrXiQwaEBPqIQ== X-Google-Smtp-Source: ABdhPJy1eiw/GhIkayI2GgkNyxQN+8Yh+FdEG4Rp52WWFbHlAo3RxV1qWk231DHeycdNYZPN6u8599LpZ1rHJ4OzvW8= X-Received: by 2002:a2e:9a44:: with SMTP id k4mr1320396ljj.201.1631077940431; Tue, 07 Sep 2021 22:12:20 -0700 (PDT) MIME-Version: 1.0 References: <20210907094628.RESEND.1.If29cd838efbcee4450a62b8d84a99b23c86e0a3f@changeid> <20210907094628.RESEND.2.Ibc87b4785709543c998cc852c1edaeb7a08edf5c@changeid> In-Reply-To: <20210907094628.RESEND.2.Ibc87b4785709543c998cc852c1edaeb7a08edf5c@changeid> From: Chen-Yu Tsai Date: Wed, 8 Sep 2021 13:12:09 +0800 Message-ID: Subject: Re: [RESEND PATCH 2/2] arm64: dts: rockchip: add Coresight debug range for RK3399 To: Brian Norris Cc: Heiko Stuebner , Michael Turquette , Stephen Boyd , linux-clk@vger.kernel.org, Douglas Anderson , LKML , linux-rockchip@lists.infradead.org, "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 8, 2021 at 12:46 AM Brian Norris wrote: > > Per Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt. > > This IP block can be used for sampling the PC of any given CPU, which is > useful in certain panic scenarios where you can't get the CPU to stop > cleanly (e.g., hard lockup). > > Signed-off-by: Brian Norris The datasheet isn't clear on whether the debug subsystem has a separate power domain or not, so that may bug us later. Otherwise, Reviewed-by: Chen-Yu Tsai