[PATCH 1/2] arm64: dts: rockchip: Add the rk3588 thermal zones
Daniel Lezcano
daniel.lezcano at linaro.org
Mon Jan 22 12:52:10 PST 2024
Hi Emmanuel,
please sync up with Alexey Charkov (added in Cc) who is doing a similar
configuration [1] which was reviewed.
Thanks
-- Daniel
[1]
https://lore.kernel.org/all/CABjd4YyL1ZwNOJrWPwZtc7=e4h18a9tQOnuKP6soy=iTHv-WEA@mail.gmail.com/
On 22/01/2024 21:34, Emmanuel Gil Peyrot wrote:
> The driver got added back in 45d7b3867a5cabb97fc31f16122cda8540c3a30c,
> but the dts never got updated, so here it is!
>
> I’ve added it to the rk3588s because that’s where most of the
> definitions are, but I’ve only tested on a rk3588 so maybe there are
> subtle changes.
>
> The rk3588 TRM also documents slightly different values (in part 1
> section 14.5.3) than the driver, but I’ve left the values alone since I
> have no way to determine which one is (more) correct.
>
> Only the CPU is properly mapped, as neither the GPU nor the NPU have
> been added to the dts for now, I’ve left some TODOs there.
>
> All of the thermal zones report almost the same value on my rock-5b
> board, I’m not sure if this is due to a programming error or if this is
> to be expected. For instance, after running for a while, all of the
> zones report 44384 m℃, despite having used neither the GPU nor the NPU.
>
> Additionally, the alert and crit temperatures have been arbitrarily
> chosen based on other dts files, not based on any knowledge of the
> thermal behaviours of this specific SoC.
>
> Signed-off-by: Emmanuel Gil Peyrot <linkmauve at linkmauve.fr>
> ---
> arch/arm64/boot/dts/rockchip/rk3588s.dtsi | 181 ++++++++++++++++++++++
> 1 file changed, 181 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
> index 36b1b7acfe6a..c7a2078960b7 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
> @@ -10,6 +10,7 @@
> #include <dt-bindings/reset/rockchip,rk3588-cru.h>
> #include <dt-bindings/phy/phy.h>
> #include <dt-bindings/ata/ahci.h>
> +#include <dt-bindings/thermal/thermal.h>
>
> / {
> compatible = "rockchip,rk3588";
> @@ -436,6 +437,186 @@ scmi_shmem: sram at 0 {
> };
> };
>
> + thermal_zones: thermal-zones {
> + soc-thermal {
> + polling-delay-passive = <250>; /* milliseconds */
> + polling-delay = <1000>; /* milliseconds */
> + thermal-sensors = <&tsadc 0>;
> +
> + trips {
> + soc_alert: trip-alert {
> + temperature = <80000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> + soc_crit: trip-crit {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + cooling-maps {
> + map0 {
> + trip = <&soc_alert>;
> + cooling-device = <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_b1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_b2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_b3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_l0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_l1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_l2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_l3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> + };
> +
> + cluster1-thermal {
> + polling-delay-passive = <250>; /* milliseconds */
> + polling-delay = <1000>; /* milliseconds */
> + thermal-sensors = <&tsadc 1>;
> +
> + trips {
> + cluster1_alert: trip-alert {
> + temperature = <80000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> + cluster1_crit: trip-crit {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + cooling-maps {
> + map0 {
> + trip = <&cluster1_alert>;
> + cooling-device = <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_b1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> + };
> +
> + cluster2-thermal {
> + polling-delay-passive = <250>; /* milliseconds */
> + polling-delay = <1000>; /* milliseconds */
> + thermal-sensors = <&tsadc 2>;
> +
> + trips {
> + cluster2_alert: trip-alert {
> + temperature = <80000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> + cluster2_crit: trip-crit {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + cooling-maps {
> + map0 {
> + trip = <&cluster2_alert>;
> + cooling-device = <&cpu_b2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_b3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> + };
> +
> + cluster0-thermal {
> + polling-delay-passive = <250>; /* milliseconds */
> + polling-delay = <1000>; /* milliseconds */
> + thermal-sensors = <&tsadc 3>;
> +
> + trips {
> + cluster0_alert: trip-alert {
> + temperature = <80000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> + cluster0_crit: trip-crit {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + cooling-maps {
> + map0 {
> + trip = <&cluster0_alert>;
> + cooling-device = <&cpu_l0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_l1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_l2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu_l3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> + };
> +
> + center-thermal {
> + polling-delay-passive = <250>; /* milliseconds */
> + polling-delay = <1000>; /* milliseconds */
> + thermal-sensors = <&tsadc 4>;
> +
> + trips {
> + center_alert: trip-alert {
> + temperature = <80000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> + center_crit: trip-crit {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + cooling-maps {
> + /* TODO: what exactly is "center"? */
> + };
> + };
> +
> + gpu-thermal {
> + polling-delay-passive = <250>; /* milliseconds */
> + polling-delay = <1000>; /* milliseconds */
> + thermal-sensors = <&tsadc 5>;
> +
> + trips {
> + gpu_alert: trip-alert {
> + temperature = <80000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> + gpu_crit: trip-crit {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + cooling-maps {
> + /* TODO: Add the GPU here once it is supported. */
> + };
> + };
> +
> + npu-thermal {
> + polling-delay-passive = <250>; /* milliseconds */
> + polling-delay = <1000>; /* milliseconds */
> + thermal-sensors = <&tsadc 6>;
> +
> + trips {
> + npu_alert: trip-alert {
> + temperature = <80000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> + npu_crit: trip-crit {
> + temperature = <100000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + cooling-maps {
> + /* TODO: Add the NPU here once it is supported. */
> + };
> + };
> + };
> +
> usb_host0_ehci: usb at fc800000 {
> compatible = "rockchip,rk3588-ehci", "generic-ehci";
> reg = <0x0 0xfc800000 0x0 0x40000>;
--
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