The Renesas RZ/G3E SoC includes a Thermal Sensor Unit (TSU) block designed
to measure the junction temperature. The device provides real-time temperature
measurements for thermal management, utilizing a single dedicated channel
(channel 1) for temperature sensing.

Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
---
v1 -> v2:
 * Fix reg property specifier to get rid of yamlint warnings
 * Fix IRQ name to reflect TSU expectations

 .../thermal/renesas,r9a09g047-tsu.yaml        | 123 ++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml

diff --git a/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
new file mode 100644
index 000000000000..e786561ddbe3
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml

@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/renesas,r9a09g047-tsu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/G3E Temperature Sensor Unit (TSU)
+
+maintainers:
+  - John Madieu <john.madieu.xa@bp.renesas.com>
+
+description:
+  The Temperature Sensor Unit (TSU) is an integrated thermal sensor that
+  monitors the chip temperature on the Renesas RZ/G3E SoC. The TSU provides
+  real-time temperature measurements for thermal management.
+
+properties:
+  compatible:
+    const: renesas,r9a09g047-tsu
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  interrupts:
+    description: |
+      Interrupt specifiers for the TSU:
+      - S12TSUADI1: Conversion complete interrupt signal (pulse)
+      - S12TSUADCMPI1: Comparison result interrupt signal (level)
+
+  interrupt-names:
+    items:
+      - const: adi
+      - const: adcmpi
+
+  "#thermal-sensor-cells":
+    const: 0
+
+  renesas,tsu-calibration-sys:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: |
+      Phandle to the system controller (sys) that contains the TSU
+      calibration values used for temperature calculations.
+
+  renesas,tsu-operating-mode:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description: |
+      TSU operating mode:
+      0: Mode 0 - Conversion started by software
+      1: Mode 1 - Conversion started by ELC trigger