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-rw-r--r--Documentation/devicetree/bindings/rng/st,stm32-rng.yaml57
1 files changed, 53 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
index 82bb2e97e889..7db65f49773b 100644
--- a/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
+++ b/Documentation/devicetree/bindings/rng/st,stm32-rng.yaml
@@ -4,36 +4,85 @@
$id: http://devicetree.org/schemas/rng/st,stm32-rng.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: STMicroelectronics STM32 RNG bindings
+title: STMicroelectronics STM32 RNG
description: |
The STM32 hardware random number generator is a simple fixed purpose
IP and is fully separated from other crypto functions.
maintainers:
- - Lionel Debieve <lionel.debieve@st.com>
+ - Lionel Debieve <lionel.debieve@foss.st.com>
properties:
compatible:
- const: st,stm32-rng
+ enum:
+ - st,stm32-rng
+ - st,stm32mp13-rng
+ - st,stm32mp25-rng
reg:
maxItems: 1
clocks:
- maxItems: 1
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: core
+ - const: bus
resets:
maxItems: 1
clock-error-detect:
+ 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.
+
+ access-controllers:
+ minItems: 1
+ maxItems: 2
+
required:
- compatible
- reg
- clocks
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32-rng
+ then:
+ properties:
+ st,rng-lock-conf: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32-rng
+ - st,stm32mp13-rng
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names: false
+ else:
+ properties:
+ clocks:
+ minItems: 2
+ required:
+ - clock-names
+
additionalProperties: false
examples: