diff mbox series

[07/10] dt-bindings: rng: add st,rng-lock-conf

Message ID 20230908165120.730867-8-gatien.chevallier@foss.st.com
State New
Headers show
Series hwrng: stm32: support STM32MP13x platforms | expand

Commit Message

Gatien CHEVALLIER Sept. 8, 2023, 4:51 p.m. UTC
If st,rng-lock-conf is set, the RNG configuration in RNG_CR, RNG_HTCR
and RNG_NSCR will be locked. It is supported starting from the RNG
version present in the STM32MP13

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
---
 .../devicetree/bindings/rng/st,stm32-rng.yaml      | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
index 59abdc85a9fb..0055f14a8e3f 100644
--- a/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
+++ b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
@@ -37,6 +37,20 @@  required:
   - reg
   - clocks
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - st,stm32mp13-rng
+    then:
+      properties:
+        st,rng-lock-conf:
+          type: boolean
+          description: If set, the RNG configuration in RNG_CR, RNG_HTCR and
+                       RNG_NSCR will be locked.
+
 additionalProperties: false
 
 examples: