From e881662aa06af65021c2fa255dd7530235a3d195 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sebastian.reichel@collabora.com>
Date: Wed, 20 Aug 2025 19:40:49 +0200
Subject: [PATCH] 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@collabora.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250820-thermal-rockchip-grf-warning-v2-3-c7e2d35017b8@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 .../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 573f447cc26ed..9fa5c4c49d76e 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:
-- 
2.47.3