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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 BDE66C5519A for ; Mon, 27 Apr 2020 09:19:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9C68C20656 for ; Mon, 27 Apr 2020 09:19:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZcfjzbQ2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbgD0JTR (ORCPT ); Mon, 27 Apr 2020 05:19:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42136 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726621AbgD0JTQ (ORCPT ); Mon, 27 Apr 2020 05:19:16 -0400 Received: from mail-lj1-x243.google.com (mail-lj1-x243.google.com [IPv6:2a00:1450:4864:20::243]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58AA3C0610D5; Mon, 27 Apr 2020 02:19:16 -0700 (PDT) Received: by mail-lj1-x243.google.com with SMTP id a21so16773944ljb.9; Mon, 27 Apr 2020 02:19:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=zyuVBjsIdXGQVFMeD0f1H4bcoGzMBUz/1lgvMwBIesE=; b=ZcfjzbQ287TzP0v7Ah3Qa2k4sl+wT8u1fI5J3pzj09Y5kBp8mQXmVu6yoKuefxeu7/ 8s4ICvjxj8inmFVeK4MwVqI7MNHmuHI3P7pk6ePpBK2QUm5wfVHMfRRjhPa9nZpXJ9tI MNjSmDq6clfxrjem4wqjUFt2zFk+Mn+aXPue5w+gR2HKXeP1+RxVVlJ9x+pxEwDwwXuF USljfBXancQjWeV0p/Nxaau22YUbVkmGSQqNZnB413FP2mrTnmbYwMu3RtOSzHbMs4bL LqD3MNSIoOYlNIXKbrgG1Fay/fmXrh3j5OEHRjyXzejsGfz8IIW40n98KxOhRa6ejltq dFJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=zyuVBjsIdXGQVFMeD0f1H4bcoGzMBUz/1lgvMwBIesE=; b=jnNpjwi1WBNtVwsza8W1ygl/vJ0Gum6AjmzVyDxF05pBMBNGpf2flz40uiSSsXqgpQ nG5TgdiShxNwPsMHWCKMiK7IR1Fe5oyZ9MbYNBT5kss/nYPaowNVUYCP0bIRX2+eoRxd fojWLILuWelIm+5iHDA9IA2XA3CSFrq9PCL5bC40dLU0//pDUDFjVIVn9uOTB4FDEj8E FQok239KsCK36s5fBj1kWfMPwBvwY4dJo+OXWGnoRx708zLPzWJoFjI12E463V6IZu5e XenFZJy7wSl87khRjM1upMYZck6ldYAELtdDI459wI4voVmxuDN03YxwWg6v9dxMUq+l vDfg== X-Gm-Message-State: AGi0PuaamUhR7irZplshchSkWrIlVnsMo/yMxni+KxMN3YjWJuEC25qd FLj+Z0iwhjasQT2y1PbjqC4= X-Google-Smtp-Source: APiQypK7KCI35pS++4J0SIqHJD7dr5g2l7+08iQ5RiCR71+iMFlR/jYNxzQBPDEHu+qT/Sz5AOLSQg== X-Received: by 2002:a2e:96c2:: with SMTP id d2mr14198354ljj.214.1587979154856; Mon, 27 Apr 2020 02:19:14 -0700 (PDT) Received: from [172.16.20.20] ([87.200.95.144]) by smtp.gmail.com with ESMTPSA id g6sm9538704ljj.78.2020.04.27.02.19.11 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 27 Apr 2020 02:19:14 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.14\)) Subject: Re: [PATCH v4] arm64: dts: meson: S922X: extend cpu opp-points From: Christian Hewitt In-Reply-To: <1ja72x2t7w.fsf@starbuckisacylon.baylibre.com> Date: Mon, 27 Apr 2020 13:19:09 +0400 Cc: Tim Lewis , mark.rutland@arm.com, devicetree@vger.kernel.org, joy.cho@hardkernel.com, narmstrong@baylibre.com, khilman@baylibre.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, tobetter@gmail.com, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: quoted-printable Message-Id: <2A9D3FBA-917A-42C7-9757-4316D6B3D284@gmail.com> References: <20200426162119.GA23268@imac> <1ja72x2t7w.fsf@starbuckisacylon.baylibre.com> To: Jerome Brunet X-Mailer: Apple Mail (2.3445.104.14) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On 27 Apr 2020, at 1:06 pm, Jerome Brunet = wrote: >=20 > On Sun 26 Apr 2020 at 18:21, Tim Lewis wrote: >=20 >> Add extra cpu pop points to allow mild overclock on S922X. The opp >> points are found in Hardkernel N2 sources [1] and testing shows no >> obvious issues on other S922X devices. Thermal throttling should >> keep things in-check if needed. >=20 > The Odroid-N2 has a massive heatsink mounted. > Do we have any idea if this applies (is safe) on any other S922x > device ? I=E2=80=99ve tested it on several S922X box devices that I have, and = also the original S922X version of the VIM3 - all have similar sized passive heatsinks about 20% the size of the N2 one. No obvious issues with Kodi software decoding to increase CPU usage. NB: The original patch submission was N2 specific and then reworked to apply to all S922X devices at Neil=E2=80=99s suggestion (after my TB and earlier comments). CH. [snip]=