linux-kernel - Re: [PATCH 4/8] arm64: dts: allwinner: Add ARM Mali GPU node for H6

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Message-ID: <20190411091240.qzi7266rzhksbxxa@flea>
Date:   Thu, 11 Apr 2019 11:12:40 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Clément Péron <peron.clem@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Icenowy Zheng <icenowy@...c.io>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        dri-devel@...ts.freedesktop.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH 4/8] arm64: dts: allwinner: Add ARM Mali GPU node for H6

On Thu, Apr 11, 2019 at 09:56:15AM +0200, Clément Péron wrote:
> Hi,
>
> On Thu, 11 Apr 2019 at 09:28, Maxime Ripard <maxime.ripard@...tlin.com> wrote:
> >
> > On Thu, Apr 11, 2019 at 01:25:39AM +0200, Clément Péron wrote:
> > > Add the mali gpu node to the H6 device-tree.
> > >
> > > Signed-off-by: Clément Péron <peron.clem@...il.com>
> > > ---
> > >  arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 80 ++++++++++++++++++++
> > >  1 file changed, 80 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> > > index e0dc4a05c1ba..152b2128aadf 100644
> > > --- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> > > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> > > @@ -17,6 +17,71 @@
> > >       #address-cells = <1>;
> > >       #size-cells = <1>;
> > >
> > > +     gpu_opp_table: opp_table1 {
> > > +             compatible = "operating-points-v2";
> > > +
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <756000000>;
> > > +                     opp-microvolt = <1040000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <624000000>;
> > > +                     opp-microvolt = <950000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <576000000>;
> > > +                     opp-microvolt = <930000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <540000000>;
> > > +                     opp-microvolt = <910000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <504000000>;
> > > +                     opp-microvolt = <890000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <456000000>;
> > > +                     opp-microvolt = <870000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <432000000>;
> > > +                     opp-microvolt = <860000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <420000000>;
> > > +                     opp-microvolt = <850000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <408000000>;
> > > +                     opp-microvolt = <840000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <384000000>;
> > > +                     opp-microvolt = <830000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <360000000>;
> > > +                     opp-microvolt = <820000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <336000000>;
> > > +                     opp-microvolt = <810000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <312000000>;
> > > +                     opp-microvolt = <810000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <264000000>;
> > > +                     opp-microvolt = <810000>;
> > > +             };
> > > +             opp@...000000 {
> > > +                     opp-hz = /bits/ 64 <216000000>;
> > > +                     opp-microvolt = <810000>;
> > > +             };
> > > +     };
> > > +
> >
> > How were those OPPs tested?
>
> They are taken from the vendor device tree.
> https://github.com/Allwinner-Homlet/H6-BSP4.9-linux/blob/master/arch/arm64/boot/dts/sunxi/sun50iw6p1.dtsi#L2121

Please remove them if you haven't tested them then.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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