linux-kernel - [PATCH 2/3] dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2H TSU

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Message-ID: <20251016131327.19141-3-ovidiu.panait.rb@renesas.com>
Date: Thu, 16 Oct 2025 13:13:26 +0000
From: Ovidiu Panait <ovidiu.panait.rb@...esas.com>
To: john.madieu.xa@...renesas.com,
	rafael@...nel.org,
	daniel.lezcano@...aro.org,
	rui.zhang@...el.com,
	lukasz.luba@....com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	geert+renesas@...der.be,
	magnus.damm@...il.com,
	mturquette@...libre.com,
	sboyd@...nel.org
Cc: linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	linux-clk@...r.kernel.org
Subject: [PATCH 2/3] dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2H TSU

The Renesas RZ/V2H 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 two dedicated
channels for temperature sensing.

The Renesas RZ/V2H SoC is using the same TSU IP found on the RZ/G3E SoC,
the only difference being that it has two channels instead of one.

Add new compatible string "renesas,r9a09g057-tsu" for RZ/V2H and use
"renesas,r9a09g047-tsu" as a fallback compatible to indicate hardware
compatibility with the RZ/G3E implementation.

Signed-off-by: Ovidiu Panait <ovidiu.panait.rb@...esas.com>
---
 .../devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
index 8d3f3c24f0f2..274e96e37a12 100644
--- a/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
+++ b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
@@ -16,7 +16,12 @@ description:
 
 properties:
   compatible:
-    const: renesas,r9a09g047-tsu
+    oneOf:
+      - items:
+          - const: renesas,r9a09g047-tsu # RZ/G3E
+      - items:
+          - const: renesas,r9a09g057-tsu # RZ/V2H
+          - const: renesas,r9a09g047-tsu # RZ/G3E
 
   reg:
     maxItems: 1
-- 
2.51.0