Re: [PATCH v2 5/8] arm64: dts: qcom: lemans: Enable CDSP cooling

From: Gaurav Kohli

Date: Thu Jan 29 2026 - 07:12:59 EST


On 1/29/2026 6:13 AM, Dmitry Baryshkov wrote:
On Tue, Jan 27, 2026 at 09:27:19PM +0530, Gaurav Kohli wrote:
Unlike the CPU, the CDSP does not throttle its speed automatically
when it reaches high temperatures in Lemans.

Set up CDSP cooling by throttling the cdsp when it reaches 105°C.

Signed-off-by: Gaurav Kohli <gaurav.kohli@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/lemans.dtsi | 138 ++++++++++++++++++++++++---
1 file changed, 126 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 808827b83553..c747dd534caa 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -7281,6 +7281,15 @@ compute-cb@11 {
};
};
};
+
+ cooling {
+ compatible = "qcom,qmi-cooling-cdsp";
+
+ cdsp_tmd0: cdsp-tmd0 {
This question was already raised. Are there more than one cooling device
for the DSP? If not, drop the subnodes.


Thanks Dmitry for review.

Yes, Each subsystem may support multiple thermal mitigation devices through remote TMD service.

So, need to define subnodes.


+ label = "cdsp_sw";
+ #cooling-cells = <2>;
+ };
+ };
};
nspb_noc: interconnect@2a0c0000 {