linux-kernel - Re: [PATCH 2/5] arm64: dts: rockchip: Add powerzones definition for rock960

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Message-ID: <2457824.5MrYSl4YA0@diego>
Date:   Wed, 24 Nov 2021 17:52:14 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     Robin Murphy <robin.murphy@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     robh@...nel.org, arnd@...aro.org, ulf.hansson@...aro.org,
        rjw@...ysocki.net, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        lukasz.luba@....com, Rob Herring <robh+dt@...nel.org>,
        Johan Jonker <jbx6244@...il.com>,
        "moderated list:ARM/Rockchip SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:ARM/Rockchip SoC support" 
        <linux-rockchip@...ts.infradead.org>
Subject: Re: [PATCH 2/5] arm64: dts: rockchip: Add powerzones definition for rock960

Am Mittwoch, 24. November 2021, 17:41:34 CET schrieb Daniel Lezcano:
> On 24/11/2021 14:49, Robin Murphy wrote:
> > On 2021-11-24 12:55, Daniel Lezcano wrote:
> >> Add the powerzones description. This first step introduces the big,
> >> the little and the gpu as a powerzone place.
> > 
> > These look more like SoC-level properties than board-level ones - should
> > they be in rk3399.dtsi?
> 
> Yes, it makes sense
> 
> If Heiko is fine with that I can add this description in the rk3399.dtsi
> file

Sure. Robin's suggestion sounds very sensible as these properties are
quite specific to the soc itself.


Heiko

> 
> >> ---
> >>   .../boot/dts/rockchip/rk3399-rock960.dts      | 45 +++++++++++++++++++
> >>   1 file changed, 45 insertions(+)
> >>
> >> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock960.dts
> >> b/arch/arm64/boot/dts/rockchip/rk3399-rock960.dts
> >> index 1a23e8f3cdf6..83540bdb64cd 100644
> >> --- a/arch/arm64/boot/dts/rockchip/rk3399-rock960.dts
> >> +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock960.dts
> >> @@ -61,6 +61,51 @@ bt_active_led: led-6 {
> >>           };
> >>       };
> >>   +    powerzones {
> >> +
> >> +        PKG_PZ: pkg {
> >> +            #powerzone-cells = <0>;
> >> +                        powerzone = <&SOC_PZ>;
> >> +        };
> >> +
> >> +        SOC_PZ: soc {
> >> +        };
> >> +    };
> >> +};
> >> +
> >> +&cpu_b0 {
> >> +    #powerzone-cells = <0>;
> >> +    powerzone = <&PKG_PZ>;
> >> +};
> >> +
> >> +&cpu_b1 {
> >> +    #powerzone-cells = <0>;
> >> +    powerzone = <&PKG_PZ>;
> >> +};
> >> +
> >> +&cpu_l0 {
> >> +    #powerzone-cells = <0>;
> >> +    powerzone = <&PKG_PZ>;
> >> +};
> >> +
> >> +&cpu_l1 {
> >> +    #powerzone-cells = <0>;
> >> +    powerzone = <&PKG_PZ>;
> >> +};
> >> +
> >> +&cpu_l2 {
> >> +    #powerzone-cells = <0>;
> >> +    powerzone = <&PKG_PZ>;
> >> +};
> >> +
> >> +&cpu_l3 {
> >> +    #powerzone-cells = <0>;
> >> +    powerzone = <&PKG_PZ>;
> >> +};
> >> +
> >> +&gpu {
> >> +    #powerzone-cells = <0>;
> >> +    powerzone = <&PKG_PZ>;
> >>   };
> >>     &cpu_alert0 {
> >>
> 
> 
>