Hello Fukaumi,
Please, see a few comments below.
On 2024-12-04 05:54, FUKAUMI Naoki wrote:
add and enable package temperature based active cooling.
I'd suggest that you rewrite the patch summary to read like this:
arm64: dts: rockchip: Enable automatic fan control on Rock 5A/5C
and to rewrite the patch description like this, which is a recycled
and a bit improved description of the commit 4a152231b050 ("arm64:
dts: rockchip: enable automatic fan control on Rock 5B"):
Link the PWM fan on Radxa ROCK 5A/5C as an active cooling device
managed automatically by the thermal subsystem, with a target SoC
temperature of 65 oC and a minimum-spin interval from 55 oC to
65 oC, to ensure airflow when the system gets warm.
Signed-off-by: FUKAUMI Naoki <naoki@xxxxxxxxx>
---
this patch depends on [1] which depends on [2].
[1]
https://patchwork.kernel.org/project/linux-rockchip/cover/20241128121929.62646-1-naoki@xxxxxxxxx/
[2]
https://patchwork.kernel.org/project/linux-rockchip/patch/20241119095113.78151-1-naoki@xxxxxxxxx/
---
.../boot/dts/rockchip/rk3588s-rock-5.dtsi | 32 ++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5.dtsi
b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5.dtsi
index a8f40f43c838..a1cac40d439e 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5.dtsi
@@ -33,7 +33,7 @@ analog-sound {
"Headphone", "Headphones";
};
- fan {
+ fan: fan {
It would be better to use "fan: pwm-fan { ... }", to ensure some kind
of consistency with the other similar portions of board dts files.
compatible = "pwm-fan";
#cooling-cells = <2>;
cooling-levels = <0 64 128 192 255>;
@@ -379,6 +379,36 @@ rgmii_phy1: ethernet-phy@1 {
};
};
+&package_thermal {
+ polling-delay = <1000>;
+
+ trips {
+ package_fan0: package-fan0 {
+ hysteresis = <2000>;
+ temperature = <55000>;
+ type = "active";
+ };
+
+ package_fan1: package-fan1 {
+ hysteresis = <2000>;
+ temperature = <65000>;
+ type = "active";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ cooling-device = <&fan THERMAL_NO_LIMIT 1>;
+ trip = <&package_fan0>;
+ };
+
+ map1 {
+ cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
+ trip = <&package_fan1>;
+ };
+ };
+};
+
&pcie2x1l2 {
pinctrl-names = "default";
pinctrl-0 = <&pcie20x1_2_perstn_m0>,
The rest of the patch is looking good to me. Thanks for the patch!
