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

Gatien Chevallier
2023-09-08T16:53:32Z

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 --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:
--
2.25.1