Enable passive polling delay for cpu thermal zone for sc7180. It
enables periodic thermal zone re-evaluation on post first trip
temperature violation.
Signed-off-by: Manaf Meethalavalappu Pallikunhi <[email protected]>
---
arch/arm64/boot/dts/qcom/sc7180.dtsi | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 98050b3..79d0747 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -4355,7 +4355,7 @@
thermal-zones {
cpu0-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 1>;
@@ -4403,7 +4403,7 @@
};
cpu1-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 2>;
@@ -4451,7 +4451,7 @@
};
cpu2-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 3>;
@@ -4499,7 +4499,7 @@
};
cpu3-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 4>;
@@ -4547,7 +4547,7 @@
};
cpu4-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 5>;
@@ -4595,7 +4595,7 @@
};
cpu5-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 6>;
@@ -4643,7 +4643,7 @@
};
cpu6-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 9>;
@@ -4683,7 +4683,7 @@
};
cpu7-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 10>;
@@ -4723,7 +4723,7 @@
};
cpu8-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 11>;
@@ -4763,7 +4763,7 @@
};
cpu9-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <50>;
polling-delay = <0>;
thermal-sensors = <&tsens0 12>;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
Hi,
On Tue, Dec 15, 2020 at 1:39 AM Manaf Meethalavalappu Pallikunhi
<[email protected]> wrote:
>
> Enable passive polling delay for cpu thermal zone for sc7180. It
> enables periodic thermal zone re-evaluation on post first trip
> temperature violation.
>
> Signed-off-by: Manaf Meethalavalappu Pallikunhi <[email protected]>
> ---
> arch/arm64/boot/dts/qcom/sc7180.dtsi | 20 ++++++++++----------
> 1 file changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index 98050b3..79d0747 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -4355,7 +4355,7 @@
>
> thermal-zones {
> cpu0-thermal {
> - polling-delay-passive = <0>;
> + polling-delay-passive = <50>;
Matthias already landed a similar patch, see:
https://lore.kernel.org/r/20201111120334.1.Ifc04ea235c3c370e3b21ec3b4d5dead83cc403b4@changeid
I guess the question is whether 50 is better or 250 is better. Is
this just a finger in the wind estimate or do you have data showing
that 50 is better than 250?
-Doug