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* Re: [PATCH] [RESEND] arm64: dts: mt8173: Add dynamic power node.
       [not found] <20191122090610.17015-1-michael.kao@mediatek.com>
@ 2019-12-05 16:00 ` Daniel Lezcano
  2019-12-11  8:13   ` Michael Kao
  0 siblings, 1 reply; 3+ messages in thread
From: Daniel Lezcano @ 2019-12-05 16:00 UTC (permalink / raw)
  To: michael.kao, Zhang Rui, Eduardo Valentin, Rob Herring,
	Mark Rutland, Matthias Brugger, hsinyi, linux-pm
  Cc: devicetree, linux-kernel, linux-arm-kernel, linux-mediatek, Dawei Chien


Hi Michael,


On 22/11/2019 10:06, michael.kao@mediatek.com wrote:
> From: "michael.kao" <michael.kao@mediatek.com>
> 
> This device node is for calculating dynamic power in mW.
> Since mt8173 has two clusters, there are two dynamic power
> coefficient as well.

Are you sure about the values? Usually, Big is ~x4 little, here it is ~x2.


> Signed-off-by: Dawei Chien <dawei.chien@mediatek.com>
> Signed-off-by: Michael.Kao <michael.kao@mediatek.com>
> 
> ---
>  arch/arm64/boot/dts/mediatek/mt8173.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index 15f1842f6df3..b03ca5a71338 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> @@ -157,6 +157,7 @@
>  			enable-method = "psci";
>  			cpu-idle-states = <&CPU_SLEEP_0>;
>  			#cooling-cells = <2>;
> +			dynamic-power-coefficient = <263>;
>  			clocks = <&infracfg CLK_INFRA_CA53SEL>,
>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>  			clock-names = "cpu", "intermediate";
> @@ -170,6 +171,7 @@
>  			enable-method = "psci";
>  			cpu-idle-states = <&CPU_SLEEP_0>;
>  			#cooling-cells = <2>;
> +			dynamic-power-coefficient = <263>;
>  			clocks = <&infracfg CLK_INFRA_CA53SEL>,
>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>  			clock-names = "cpu", "intermediate";
> @@ -183,6 +185,7 @@
>  			enable-method = "psci";
>  			cpu-idle-states = <&CPU_SLEEP_0>;
>  			#cooling-cells = <2>;
> +			dynamic-power-coefficient = <530>;
>  			clocks = <&infracfg CLK_INFRA_CA72SEL>,
>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>  			clock-names = "cpu", "intermediate";
> @@ -196,6 +199,7 @@
>  			enable-method = "psci";
>  			cpu-idle-states = <&CPU_SLEEP_0>;
>  			#cooling-cells = <2>;
> +			dynamic-power-coefficient = <530>;
>  			clocks = <&infracfg CLK_INFRA_CA72SEL>,
>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>  			clock-names = "cpu", "intermediate";
> 


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^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: [PATCH] [RESEND] arm64: dts: mt8173: Add dynamic power node.
  2019-12-05 16:00 ` [PATCH] [RESEND] arm64: dts: mt8173: Add dynamic power node Daniel Lezcano
@ 2019-12-11  8:13   ` Michael Kao
  2019-12-11 18:06     ` Matthias Brugger
  0 siblings, 1 reply; 3+ messages in thread
From: Michael Kao @ 2019-12-11  8:13 UTC (permalink / raw)
  To: Daniel Lezcano
  Cc: Zhang Rui, Eduardo Valentin, Rob Herring, Mark Rutland,
	Matthias Brugger, hsinyi, linux-pm, devicetree, linux-kernel,
	linux-arm-kernel, linux-mediatek, Dawei Chien, mn.tsou

On Thu, 2019-12-05 at 17:00 +0100, Daniel Lezcano wrote:
> Hi Michael,
> 
> 
> On 22/11/2019 10:06, michael.kao@mediatek.com wrote:
> > From: "michael.kao" <michael.kao@mediatek.com>
> > 
> > This device node is for calculating dynamic power in mW.
> > Since mt8173 has two clusters, there are two dynamic power
> > coefficient as well.
> 
> Are you sure about the values? Usually, Big is ~x4 little, here it is ~x2.

Hi Daniel,

I have confirmed again with our IC designer.
The dynamic power coefficients are these value is right.
Designer comment that it is result from different IC implement.
> 
> > Signed-off-by: Dawei Chien <dawei.chien@mediatek.com>
> > Signed-off-by: Michael.Kao <michael.kao@mediatek.com>
> > 
> > ---
> >  arch/arm64/boot/dts/mediatek/mt8173.dtsi | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > index 15f1842f6df3..b03ca5a71338 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > @@ -157,6 +157,7 @@
> >  			enable-method = "psci";
> >  			cpu-idle-states = <&CPU_SLEEP_0>;
> >  			#cooling-cells = <2>;
> > +			dynamic-power-coefficient = <263>;
> >  			clocks = <&infracfg CLK_INFRA_CA53SEL>,
> >  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
> >  			clock-names = "cpu", "intermediate";
> > @@ -170,6 +171,7 @@
> >  			enable-method = "psci";
> >  			cpu-idle-states = <&CPU_SLEEP_0>;
> >  			#cooling-cells = <2>;
> > +			dynamic-power-coefficient = <263>;
> >  			clocks = <&infracfg CLK_INFRA_CA53SEL>,
> >  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
> >  			clock-names = "cpu", "intermediate";
> > @@ -183,6 +185,7 @@
> >  			enable-method = "psci";
> >  			cpu-idle-states = <&CPU_SLEEP_0>;
> >  			#cooling-cells = <2>;
> > +			dynamic-power-coefficient = <530>;
> >  			clocks = <&infracfg CLK_INFRA_CA72SEL>,
> >  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
> >  			clock-names = "cpu", "intermediate";
> > @@ -196,6 +199,7 @@
> >  			enable-method = "psci";
> >  			cpu-idle-states = <&CPU_SLEEP_0>;
> >  			#cooling-cells = <2>;
> > +			dynamic-power-coefficient = <530>;
> >  			clocks = <&infracfg CLK_INFRA_CA72SEL>,
> >  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
> >  			clock-names = "cpu", "intermediate";
> > 
> 
> 


^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: [PATCH] [RESEND] arm64: dts: mt8173: Add dynamic power node.
  2019-12-11  8:13   ` Michael Kao
@ 2019-12-11 18:06     ` Matthias Brugger
  0 siblings, 0 replies; 3+ messages in thread
From: Matthias Brugger @ 2019-12-11 18:06 UTC (permalink / raw)
  To: Michael Kao, Daniel Lezcano
  Cc: Zhang Rui, Eduardo Valentin, Rob Herring, Mark Rutland, hsinyi,
	linux-pm, devicetree, linux-kernel, linux-arm-kernel,
	linux-mediatek, Dawei Chien, mn.tsou



On 11/12/2019 09:13, Michael Kao wrote:
> On Thu, 2019-12-05 at 17:00 +0100, Daniel Lezcano wrote:
>> Hi Michael,
>>
>>
>> On 22/11/2019 10:06, michael.kao@mediatek.com wrote:
>>> From: "michael.kao" <michael.kao@mediatek.com>
>>>
>>> This device node is for calculating dynamic power in mW.
>>> Since mt8173 has two clusters, there are two dynamic power
>>> coefficient as well.
>>
>> Are you sure about the values? Usually, Big is ~x4 little, here it is ~x2.
> 
> Hi Daniel,
> 
> I have confirmed again with our IC designer.
> The dynamic power coefficients are these value is right.
> Designer comment that it is result from different IC implement.

Applied to v5.5-next/dts64

Thanks!
Matthias

>>
>>> Signed-off-by: Dawei Chien <dawei.chien@mediatek.com>
>>> Signed-off-by: Michael.Kao <michael.kao@mediatek.com>
>>>
>>> ---
>>>  arch/arm64/boot/dts/mediatek/mt8173.dtsi | 4 ++++
>>>  1 file changed, 4 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
>>> index 15f1842f6df3..b03ca5a71338 100644
>>> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
>>> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
>>> @@ -157,6 +157,7 @@
>>>  			enable-method = "psci";
>>>  			cpu-idle-states = <&CPU_SLEEP_0>;
>>>  			#cooling-cells = <2>;
>>> +			dynamic-power-coefficient = <263>;
>>>  			clocks = <&infracfg CLK_INFRA_CA53SEL>,
>>>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>>>  			clock-names = "cpu", "intermediate";
>>> @@ -170,6 +171,7 @@
>>>  			enable-method = "psci";
>>>  			cpu-idle-states = <&CPU_SLEEP_0>;
>>>  			#cooling-cells = <2>;
>>> +			dynamic-power-coefficient = <263>;
>>>  			clocks = <&infracfg CLK_INFRA_CA53SEL>,
>>>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>>>  			clock-names = "cpu", "intermediate";
>>> @@ -183,6 +185,7 @@
>>>  			enable-method = "psci";
>>>  			cpu-idle-states = <&CPU_SLEEP_0>;
>>>  			#cooling-cells = <2>;
>>> +			dynamic-power-coefficient = <530>;
>>>  			clocks = <&infracfg CLK_INFRA_CA72SEL>,
>>>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>>>  			clock-names = "cpu", "intermediate";
>>> @@ -196,6 +199,7 @@
>>>  			enable-method = "psci";
>>>  			cpu-idle-states = <&CPU_SLEEP_0>;
>>>  			#cooling-cells = <2>;
>>> +			dynamic-power-coefficient = <530>;
>>>  			clocks = <&infracfg CLK_INFRA_CA72SEL>,
>>>  				 <&apmixedsys CLK_APMIXED_MAINPLL>;
>>>  			clock-names = "cpu", "intermediate";
>>>
>>
>>
> 

^ permalink raw reply	[flat|nested] 3+ messages in thread
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     [not found] <20191122090610.17015-1-michael.kao@mediatek.com>
2019-12-05 16:00 ` [PATCH] [RESEND] arm64: dts: mt8173: Add dynamic power node Daniel Lezcano
2019-12-11  8:13   ` Michael Kao
2019-12-11 18:06     ` Matthias Brugger

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