diff mbox series

[v3,1/9] dt-bindings: rng: introduce new compatible for STM32MP13x

Message ID 20230921080301.253563-2-gatien.chevallier@foss.st.com
State Accepted
Commit 0d2d67b48646b3b7d5f830525e3779a0f9efa424
Headers show
Series hwrng: stm32: support STM32MP13x platforms | expand

Commit Message

Gatien CHEVALLIER Sept. 21, 2023, 8:02 a.m. UTC
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>
---

Changes in V3:
	- Squashed with: patch [V2 07/10]
	- Declare st,rng-lock-conf at top level and restrain its uses
	  depending on the compatible. I discarded Rob's tag as for
	  the modifications.	

 .../devicetree/bindings/rng/st,stm32-rng.yaml | 20 ++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

Comments

Rob Herring (Arm) Sept. 22, 2023, 8:49 p.m. UTC | #1
On Thu, 21 Sep 2023 10:02:53 +0200, Gatien Chevallier wrote:
> 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>
> ---
> 
> Changes in V3:
> 	- Squashed with: patch [V2 07/10]
> 	- Declare st,rng-lock-conf at top level and restrain its uses
> 	  depending on the compatible. I discarded Rob's tag as for
> 	  the modifications.
> 
>  .../devicetree/bindings/rng/st,stm32-rng.yaml | 20 ++++++++++++++++++-
>  1 file changed, 19 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
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 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: