From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 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> References: <20180830154518.29507-1-embed3d@gmail.com> <20180830154518.29507-31-embed3d@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20180830154518.29507-31-embed3d@gmail.com> Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@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.