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authorGatien Chevallier <gatien.chevallier@foss.st.com>2023-09-21 11:02:53 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2023-10-01 11:28:14 +0300
commit0d2d67b48646b3b7d5f830525e3779a0f9efa424 (patch)
tree15b333686aca398b7c0f28d55600269a52f42e67
parent29b49013176ba066a41fc417e17f85dfdf3336c0 (diff)
downloadlinux-0d2d67b48646b3b7d5f830525e3779a0f9efa424.tar.xz
dt-bindings: rng: introduce new compatible for STM32MP13x
Introduce st,stm32mp13-rng compatible and add st,rng-lock-conf. 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> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--Documentation/devicetree/bindings/rng/st,stm32-rng.yaml20
1 files changed, 19 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
index 187b172d0cca..717f6b321f88 100644
--- a/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
+++ b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
@@ -15,7 +15,9 @@ maintainers:
properties:
compatible:
- const: st,stm32-rng
+ enum:
+ - st,stm32-rng
+ - st,stm32mp13-rng
reg:
maxItems: 1
@@ -30,11 +32,27 @@ properties:
type: boolean
description: If set enable the clock detection management
+ st,rng-lock-conf:
+ type: boolean
+ description: If set, the RNG configuration in RNG_CR, RNG_HTCR and
+ RNG_NSCR will be locked.
+
required:
- compatible
- reg
- clocks
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32-rng
+ then:
+ properties:
+ st,rng-lock-conf: false
+
additionalProperties: false
examples: