Re: [PATCH v2] arm64: dts: mediatek: Add Mediatek mt8192 cpufreq device nodes

[Nícolas F. R. A. Prado]

Hi again,
please see my comment below.

On Thu, Feb 10, 2022 at 09:47:04AM -0500, Nícolas F. R. A. Prado wrote:
> Hi Andrew,
> 
> On Tue, Dec 29, 2020 at 02:31:11PM +0800, Andrew-sh.Cheng wrote:
> > From: "Andrew-sh.Cheng" <andrew-sh.cheng@xxxxxxxxxxxx>
> > 
> > Correct dts node name in patch v1: performance-domain
> > This patch depends on [1] and [2].
> > 
> > [1]http://lists.infradead.org/pipermail/linux-mediatek/2020-November/019378.html
> > [2]https://patchwork.kernel.org/project/linux-mediatek/patch/1607586516-6547-3-git-send-email-hector.yuan@xxxxxxxxxxxx/
> 
> Those two series are now merged, so no dependencies missing for this patch any
> longer.
> 
> Please rebase this patch, as there are some conflicts. I've already verified it,
> and after you rebase I can send a reviewed-by.
> 
> Thanks,
> Nícolas
> 
> > 
> > Signed-off-by: Andrew-sh.Cheng <andrew-sh.cheng@xxxxxxxxxxxx>
> > ---
> >  arch/arm64/boot/dts/mediatek/mt8192.dtsi | 14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > index 69d45c7b31f1..a907ee7e650a 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > @@ -39,6 +39,7 @@
> >  			compatible = "arm,cortex-a55";
> >  			reg = <0x000>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 0>;
> >  			clock-frequency = <1701000000>;
> >  			next-level-cache = <&l2_0>;
> >  			capacity-dmips-mhz = <530>;
> > @@ -49,6 +50,7 @@
> >  			compatible = "arm,cortex-a55";
> >  			reg = <0x100>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 0>;
> >  			clock-frequency = <1701000000>;
> >  			next-level-cache = <&l2_0>;
> >  			capacity-dmips-mhz = <530>;
> > @@ -59,6 +61,7 @@
> >  			compatible = "arm,cortex-a55";
> >  			reg = <0x200>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 0>;
> >  			clock-frequency = <1701000000>;
> >  			next-level-cache = <&l2_0>;
> >  			capacity-dmips-mhz = <530>;
> > @@ -69,6 +72,7 @@
> >  			compatible = "arm,cortex-a55";
> >  			reg = <0x300>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 0>;
> >  			clock-frequency = <1701000000>;
> >  			next-level-cache = <&l2_0>;
> >  			capacity-dmips-mhz = <530>;
> > @@ -79,6 +83,7 @@
> >  			compatible = "arm,cortex-a76";
> >  			reg = <0x400>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 1>;
> >  			clock-frequency = <2171000000>;
> >  			next-level-cache = <&l2_1>;
> >  			capacity-dmips-mhz = <1024>;
> > @@ -89,6 +94,7 @@
> >  			compatible = "arm,cortex-a76";
> >  			reg = <0x500>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 1>;
> >  			clock-frequency = <2171000000>;
> >  			next-level-cache = <&l2_1>;
> >  			capacity-dmips-mhz = <1024>;
> > @@ -99,6 +105,7 @@
> >  			compatible = "arm,cortex-a76";
> >  			reg = <0x600>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 1>;
> >  			clock-frequency = <2171000000>;
> >  			next-level-cache = <&l2_1>;
> >  			capacity-dmips-mhz = <1024>;
> > @@ -109,6 +116,7 @@
> >  			compatible = "arm,cortex-a76";
> >  			reg = <0x700>;
> >  			enable-method = "psci";
> > +			performance-domains = <&performance 1>;
> >  			clock-frequency = <2171000000>;
> >  			next-level-cache = <&l2_1>;
> >  			capacity-dmips-mhz = <1024>;
> > @@ -194,6 +202,12 @@
> >  		compatible = "simple-bus";
> >  		ranges;
> >  
> > +		performance: performance-controller@0011bc00 {

Actually there is a warning being introduced here on dtbs_check:

	soc: 'performance-controller@0011bc00' does not match any of the regexes: '@(0|[1-9a-f][0-9a-f]*)$', '^[^@]+$', 'pinctrl-[0-9]+'
		From schema: [...]/dtschema/schemas/simple-bus.yaml

So you should also change the address to not start with zeros: 11bc00

Thanks,
Nícolas

> > +			compatible = "mediatek,cpufreq-hw";
> > +			reg = <0 0x0011bc10 0 0x120>, <0 0x0011bd30 0 0x120>;
> > +			#performance-domain-cells = <1>;
> > +		};
> > +
> >  		gic: interrupt-controller@c000000 {
> >  			compatible = "arm,gic-v3";
> >  			#interrupt-cells = <4>;
> > -- 
> > 2.12.5
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