Thread (32 messages) 32 messages, 6 authors, 2025-07-22

Re: [PATCH v2 02/16] dt-bindings: stm32: stm32mp25: add `access-controller-cell` property

From: Rob Herring <robh@kernel.org>
Date: 2025-07-15 03:17:18
Also in: linux-clk, linux-devicetree, linux-doc, linux-perf-users, lkml

On Fri, Jul 11, 2025 at 04:48:54PM +0200, Clément Le Goffic wrote:
RCC is able to check the availability of a clock.
Allow to query the RCC with a firewall ID.
If it is tied to a clock, do we need another provider? We have the 
"protected clocks" thing, but that might be a bit different.
quoted hunk ↗ jump to hunk
Signed-off-by: Clément Le Goffic <redacted>
---
 Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml | 7 +++++++
 1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
index 88e52f10d1ec..4d471e3d89bc 100644
--- a/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
@@ -31,6 +31,11 @@ properties:
   '#reset-cells':
     const: 1
 
+  '#access-controller-cells':
+    const: 1
+    description:
+      Contains the firewall ID associated to the peripheral.
+
   clocks:
     items:
       - description: CK_SCMI_HSE High Speed External oscillator (8 to 48 MHz)
@@ -123,6 +128,7 @@ required:
   - reg
   - '#clock-cells'
   - '#reset-cells'
+  - '#access-controller-cells'
   - clocks
 
 additionalProperties: false
@@ -136,6 +142,7 @@ examples:
         reg = <0x44200000 0x10000>;
         #clock-cells = <1>;
         #reset-cells = <1>;
+        #access-controller-cells = <1>;
         clocks =  <&scmi_clk CK_SCMI_HSE>,
                   <&scmi_clk CK_SCMI_HSI>,
                   <&scmi_clk CK_SCMI_MSI>,
-- 
2.43.0
  
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help