linux-kernel - [PATCH v2 3/3] dt-bindings: thermal: rockchip: tighten grf requirements

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Message-Id: <20250820-thermal-rockchip-grf-warning-v2-3-c7e2d35017b8@kernel.org>
Date: Wed, 20 Aug 2025 19:40:49 +0200
From: Sebastian Reichel <sebastian.reichel@...labora.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>, 
 Lukasz Luba <lukasz.luba@....com>, Heiko Stuebner <heiko@...ech.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Robin Murphy <robin.murphy@....com>, 
 Diederik de Haas <didi.debian@...ow.org>, linux-pm@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 kernel@...labora.com, Sebastian Reichel <sebastian.reichel@...labora.com>
Subject: [PATCH v2 3/3] dt-bindings: thermal: rockchip: tighten grf
 requirements

Instead of having an optional rockchip,grf property, forbid using it on
platforms without registers in a GRF being needed for thermal monitoring
and make it mandatory on the platforms actually needing it.

Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
 .../devicetree/bindings/thermal/rockchip-thermal.yaml     | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml
index 573f447cc26ed7100638277598b0e745d436fd01..9fa5c4c49d76e3a689f31797875124e7fb30d3df 100644
--- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.yaml
@@ -119,6 +119,21 @@ required:
   - resets

 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,px30-tsadc
+              - rockchip,rk3366-tsadc
+              - rockchip,rk3399-tsadc
+              - rockchip,rk3568-tsadc
+    then:
+      required:
+        - rockchip,grf
+    else:
+      properties:
+        rockchip,grf: false
   - if:
       not:
         properties:

-- 
2.50.1