Thread (13 messages) 13 messages, 4 authors, 2d ago

Re: [PATCH 5/6] arm64: dts: qcom: lemans: Add support for TSCSS node

From: Konrad Dybcio <hidden>
Date: 2026-07-27 14:44:36
Also in: linux-arm-msm, linux-devicetree, lkml

On 7/27/26 4:11 PM, Imran Shaik wrote:
quoted hunk ↗ jump to hunk
Add Timestamp Counter Subsystem (TSCSS) node support on Qualcomm Lemans
SoCs.

Signed-off-by: Imran Shaik <redacted>
---
 arch/arm64/boot/dts/qcom/lemans.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 3b0539e27b5192582e0bc9ea248f1c0382e05030..e225292a1e41a5a313aca188ca04bb12474995e8 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -3023,6 +3023,17 @@ pcie1_phy: phy@1c14000 {
 			status = "disabled";
 		};
 
+		tscss@1c80000 {
+			compatible = "qcom,lemans-tscss";
+			reg = <0x0 0x01c80000 0x0 0x2000>;
+			reg-names = "tsc";
+			clocks = <&gcc GCC_TSCSS_AHB_CLK>,
+				 <&gcc GCC_TSCSS_GLOBAL_CNTR_CLK>;
+			clock-names = "ahb", "cntr";
+			assigned-clocks = <&gcc GCC_TSCSS_GLOBAL_CNTR_CLK>;
+			assigned-clock-rates = <15625000>;
I'm guessing this will only ever require a single rate - do we
need power-domains pointing to one of the RPMHPDs and a
required-opps reference to match?

Konrad
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