* [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA
@ 2019-09-13 8:50 Biju Das
2019-09-13 8:50 ` [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient Biju Das
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Biju Das @ 2019-09-13 8:50 UTC (permalink / raw)
To: Rob Herring, Mark Rutland
Cc: Biju Das, Geert Uytterhoeven, Simon Horman, Magnus Damm,
linux-renesas-soc, devicetree, Chris Paterson, Fabrizio Castro
Setup a thermal zone driven by SoC temperature sensor.
Create passive trip points and bind them to CPUFreq cooling
device that supports power extension.
Based on the work done by Dien Pham <dien.pham.ry@renesas.com>
and others for r8a77990 SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
---
arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
index a1c2de9..764df4c 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
@@ -73,6 +73,7 @@
compatible = "arm,cortex-a53";
reg = <0>;
device_type = "cpu";
+ #cooling-cells = <2>;
power-domains = <&sysc R8A774C0_PD_CA53_CPU0>;
next-level-cache = <&L2_CA53>;
enable-method = "psci";
@@ -1905,18 +1906,30 @@
thermal-zones {
cpu-thermal {
polling-delay-passive = <250>;
- polling-delay = <1000>;
- thermal-sensors = <&thermal>;
+ polling-delay = <0>;
+ thermal-sensors = <&thermal 0>;
+ sustainable-power = <717>;
cooling-maps {
+ map0 {
+ trip = <&target>;
+ cooling-device = <&a53_0 0 2>;
+ contribution = <1024>;
+ };
};
trips {
- cpu-crit {
+ sensor1_crit: sensor1-crit {
temperature = <120000>;
hysteresis = <2000>;
type = "critical";
};
+
+ target: trip-point1 {
+ temperature = <100000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
};
};
};
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient
2019-09-13 8:50 [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA Biju Das
@ 2019-09-13 8:50 ` Biju Das
2019-09-13 10:49 ` Simon Horman
2019-09-16 7:42 ` Geert Uytterhoeven
2019-09-13 10:49 ` [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA Simon Horman
2019-09-16 7:41 ` Geert Uytterhoeven
2 siblings, 2 replies; 6+ messages in thread
From: Biju Das @ 2019-09-13 8:50 UTC (permalink / raw)
To: Rob Herring, Mark Rutland
Cc: Biju Das, Geert Uytterhoeven, Simon Horman, Magnus Damm,
linux-renesas-soc, devicetree, Chris Paterson, Fabrizio Castro
Describe the dynamic power coefficient of A53 CPUs.
Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
---
arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
index 764df4c..c7bdc36 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
@@ -77,6 +77,7 @@
power-domains = <&sysc R8A774C0_PD_CA53_CPU0>;
next-level-cache = <&L2_CA53>;
enable-method = "psci";
+ dynamic-power-coefficient = <277>;
clocks = <&cpg CPG_CORE R8A774C0_CLK_Z2>;
operating-points-v2 = <&cluster1_opp>;
};
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA
2019-09-13 8:50 [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA Biju Das
2019-09-13 8:50 ` [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient Biju Das
@ 2019-09-13 10:49 ` Simon Horman
2019-09-16 7:41 ` Geert Uytterhoeven
2 siblings, 0 replies; 6+ messages in thread
From: Simon Horman @ 2019-09-13 10:49 UTC (permalink / raw)
To: Biju Das
Cc: Rob Herring, Mark Rutland, Geert Uytterhoeven, Magnus Damm,
linux-renesas-soc, devicetree, Chris Paterson, Fabrizio Castro
On Fri, Sep 13, 2019 at 09:50:07AM +0100, Biju Das wrote:
> Setup a thermal zone driven by SoC temperature sensor.
> Create passive trip points and bind them to CPUFreq cooling
> device that supports power extension.
>
> Based on the work done by Dien Pham <dien.pham.ry@renesas.com>
> and others for r8a77990 SoC.
>
> Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
> ---
> arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 19 ++++++++++++++++---
> 1 file changed, 16 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
> index a1c2de9..764df4c 100644
> --- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
> @@ -73,6 +73,7 @@
> compatible = "arm,cortex-a53";
> reg = <0>;
> device_type = "cpu";
> + #cooling-cells = <2>;
> power-domains = <&sysc R8A774C0_PD_CA53_CPU0>;
> next-level-cache = <&L2_CA53>;
> enable-method = "psci";
> @@ -1905,18 +1906,30 @@
> thermal-zones {
> cpu-thermal {
> polling-delay-passive = <250>;
> - polling-delay = <1000>;
> - thermal-sensors = <&thermal>;
> + polling-delay = <0>;
> + thermal-sensors = <&thermal 0>;
> + sustainable-power = <717>;
>
> cooling-maps {
> + map0 {
> + trip = <&target>;
> + cooling-device = <&a53_0 0 2>;
> + contribution = <1024>;
> + };
> };
>
> trips {
> - cpu-crit {
> + sensor1_crit: sensor1-crit {
> temperature = <120000>;
> hysteresis = <2000>;
> type = "critical";
> };
> +
> + target: trip-point1 {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> };
> };
> };
> --
> 2.7.4
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient
2019-09-13 8:50 ` [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient Biju Das
@ 2019-09-13 10:49 ` Simon Horman
2019-09-16 7:42 ` Geert Uytterhoeven
1 sibling, 0 replies; 6+ messages in thread
From: Simon Horman @ 2019-09-13 10:49 UTC (permalink / raw)
To: Biju Das
Cc: Rob Herring, Mark Rutland, Geert Uytterhoeven, Magnus Damm,
linux-renesas-soc, devicetree, Chris Paterson, Fabrizio Castro
On Fri, Sep 13, 2019 at 09:50:08AM +0100, Biju Das wrote:
> Describe the dynamic power coefficient of A53 CPUs.
>
> Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.
>
> Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA
2019-09-13 8:50 [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA Biju Das
2019-09-13 8:50 ` [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient Biju Das
2019-09-13 10:49 ` [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA Simon Horman
@ 2019-09-16 7:41 ` Geert Uytterhoeven
2 siblings, 0 replies; 6+ messages in thread
From: Geert Uytterhoeven @ 2019-09-16 7:41 UTC (permalink / raw)
To: Biju Das
Cc: Rob Herring, Mark Rutland, Geert Uytterhoeven, Simon Horman,
Magnus Damm, Linux-Renesas,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Chris Paterson, Fabrizio Castro
On Fri, Sep 13, 2019 at 10:57 AM Biju Das <biju.das@bp.renesas.com> wrote:
> Setup a thermal zone driven by SoC temperature sensor.
> Create passive trip points and bind them to CPUFreq cooling
> device that supports power extension.
>
> Based on the work done by Dien Pham <dien.pham.ry@renesas.com>
> and others for r8a77990 SoC.
>
> Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.5.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient
2019-09-13 8:50 ` [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient Biju Das
2019-09-13 10:49 ` Simon Horman
@ 2019-09-16 7:42 ` Geert Uytterhoeven
1 sibling, 0 replies; 6+ messages in thread
From: Geert Uytterhoeven @ 2019-09-16 7:42 UTC (permalink / raw)
To: Biju Das
Cc: Rob Herring, Mark Rutland, Geert Uytterhoeven, Simon Horman,
Magnus Damm, Linux-Renesas,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Chris Paterson, Fabrizio Castro
On Fri, Sep 13, 2019 at 10:57 AM Biju Das <biju.das@bp.renesas.com> wrote:
> Describe the dynamic power coefficient of A53 CPUs.
>
> Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.
>
> Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.5.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 6+ messages in thread
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2019-09-13 8:50 [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA Biju Das
2019-09-13 8:50 ` [PATCH 2/2] arm64: dts: renesas: r8a774c0: Add dynamic power coefficient Biju Das
2019-09-13 10:49 ` Simon Horman
2019-09-16 7:42 ` Geert Uytterhoeven
2019-09-13 10:49 ` [PATCH 1/2] arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA Simon Horman
2019-09-16 7:41 ` Geert Uytterhoeven
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