The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs include a
Temperature Sensor Unit (TSU). The device provides real-time temperature
measurements for thermal management, utilizing a single dedicated
channel for temperature sensing.
Compared to the previously supported RZ/G3E, the RZ/T2H and RZ/N2H SoCs
do not have a reset for the TSU peripheral, and the OTP data is exposed
via ARM SMC, as opposed to a system register.
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
---
V3:
* add more details about the differences in the commit message
* rebase on top of [1]
* conditionally add `resets: false` and `renesas,tsu-trim: false` for
renesas,r9a09g077-tsu compatibles
[1]: https://patchwork.kernel.org/project/linux-pm/cover/20251020143107.13974-1-ovidiu.panait.rb@renesas.com/
V2:
* merge two items into a single enum
.../thermal/renesas,r9a09g047-tsu.yaml | 30 +++++++++++++++++--
1 file changed, 27 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
index befdc8b7a082..a04e5048eadf 100644
--- a/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
+++ b/Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
@@ -17,10 +17,15 @@ description:
properties:
compatible:
oneOf:
- - const: renesas,r9a09g047-tsu # RZ/G3E
+ - enum:
+ - renesas,r9a09g047-tsu # RZ/G3E
+ - renesas,r9a09g077-tsu # RZ/T2H
- items:
- const: renesas,r9a09g057-tsu # RZ/V2H
- const: renesas,r9a09g047-tsu # RZ/G3E
+ - items:
+ - const: renesas,r9a09g087-tsu # RZ/N2H
+ - const: renesas,r9a09g077-tsu # RZ/T2H
reg:
maxItems: 1
@@ -63,12 +68,31 @@ required:
- compatible
- reg
- clocks
- - resets
- power-domains
- interrupts
- interrupt-names
- "#thermal-sensor-cells"
- - renesas,tsu-trim
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g047-tsu
+ then:
+ required:
+ - resets
+ - renesas,tsu-trim
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g077-tsu
+ then:
+ properties:
+ resets: false
+ renesas,tsu-trim: false
additionalProperties: false
--
2.52.0