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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED 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 C9640C433F5 for ; Thu, 30 Aug 2018 16:38:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6C62C20661 for ; Thu, 30 Aug 2018 16:38:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=megous.com header.i=@megous.com header.b="S9syPAPW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C62C20661 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=megous.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 S1727565AbeH3Ule (ORCPT ); Thu, 30 Aug 2018 16:41:34 -0400 Received: from vps.xff.cz ([195.181.215.36]:35644 "EHLO vps.xff.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727117AbeH3Ule (ORCPT ); Thu, 30 Aug 2018 16:41:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1535647114; bh=K4NhqDx3LpGTI8xLetxC1QVSbl52xpR96Gka9aLuwLE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=S9syPAPWJJBIIlovkgJMOIAhJc1m8obULnQRykIysH2jzrzLAAHVaAkHhN4Hs7R/n hQ4arSLvIXO5YpfUDFjdy7/Z+pq5WyG2giM77FFJrzKuz2MfArAoqh3pnecjKrapcH RIpYIzPz9PHeWfWGKdO2R+ANNEDkRqPyIHVmDJkQ= Date: Thu, 30 Aug 2018 18:38:33 +0200 From: =?utf-8?Q?Ond=C5=99ej?= Jirman To: Philipp Rossak Cc: lee.jones@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, maxime.ripard@bootlin.com, wens@csie.org, linux@armlinux.org.uk, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, eugen.hristev@microchip.com, rdunlap@infradead.org, vilhelm.gray@gmail.com, clabbe.montjoie@gmail.com, quentin.schulz@bootlin.com, geert+renesas@glider.be, lukas@wunner.de, icenowy@aosc.io, arnd@arndb.de, broonie@kernel.org, arnaud.pouliquen@st.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com Subject: Re: [linux-sunxi] [PATCH v3 30/30] ARM: sun8i: a83t: full range OPP tables and CPUfreq Message-ID: <20180830163833.v7zvmaz2vsxvzhur@core> Mail-Followup-To: Philipp Rossak , lee.jones@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, maxime.ripard@bootlin.com, wens@csie.org, linux@armlinux.org.uk, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, eugen.hristev@microchip.com, rdunlap@infradead.org, vilhelm.gray@gmail.com, clabbe.montjoie@gmail.com, quentin.schulz@bootlin.com, geert+renesas@glider.be, lukas@wunner.de, icenowy@aosc.io, arnd@arndb.de, broonie@kernel.org, arnaud.pouliquen@st.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com References: <20180830154518.29507-1-embed3d@gmail.com> <20180830154518.29507-31-embed3d@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180830154518.29507-31-embed3d@gmail.com> If-You-Cant-Reach-Me-Try: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Thu, Aug 30, 2018 at 05:45:18PM +0200, Philipp Rossak wrote: > Since we have now thermal trotteling enabeled we can now add the full > range of the OPP table. I'm not sure we can. I have a tablet with A83T SoC and it gets unstable at these frequencies even with thermal throttling on mainline kernel. (Though I have my own THS driver, but I doubt a different driver will change much.) There might be some other issue left in the cpufreq code. I'll let others test this on a better cooled boards though. Did you/someone test this? regards, o. > The operating points were found in Allwinner BSP and fex files. > > Signed-off-by: Philipp Rossak > --- > arch/arm/boot/dts/sun8i-a83t.dtsi | 32 ++++++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi > index 78aa448e869f..ddcf404f9c80 100644 > --- a/arch/arm/boot/dts/sun8i-a83t.dtsi > +++ b/arch/arm/boot/dts/sun8i-a83t.dtsi > @@ -250,6 +250,22 @@ > opp-microvolt = <840000>; > clock-latency-ns = <244144>; /* 8 32k periods */ > }; > + > + opp-1608000000 { > + opp-hz = /bits/ 64 <1608000000>; > + opp-microvolt = <920000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + opp-1800000000 { /* BOOT FREQ */ > + opp-hz = /bits/ 64 <1800000000>; > + opp-microvolt = <1000000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + opp-2016000000 { > + opp-hz = /bits/ 64 <2016000000>; > + opp-microvolt = <1080000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > }; > > cpu1_opp_table: opp_table1 { > @@ -303,6 +319,22 @@ > opp-microvolt = <840000>; > clock-latency-ns = <244144>; /* 8 32k periods */ > }; > + > + opp-1608000000 { > + opp-hz = /bits/ 64 <1608000000>; > + opp-microvolt = <920000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + opp-1800000000 { /* BOOT FREQ */ > + opp-hz = /bits/ 64 <1800000000>; > + opp-microvolt = <1000000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + opp-2016000000 { > + opp-hz = /bits/ 64 <2016000000>; > + opp-microvolt = <1080000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > }; > > soc { > -- > 2.11.0 > > -- > You received this message because you are subscribed to the Google Groups "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe@googlegroups.com. > For more options, visit https://groups.google.com/d/optout.