Subject: [PATCH v6 1/5] dt-bindings: i3c: mipi-i3c-hci: add Microchip SAMA7D65 compatible

From: Manikandan Muralidharan <[email-masked]>
Date: Thu, 7 May 2026 14:18:01 +0530

Add the microchip,sama7d65-i3c-hci compatible string to the MIPI I3C
HCI binding. The Microchip SAMA7D65 I3C controller is based on the
MIPI HCI specification but requires two clocks, so add a conditional
constraint when this compatible is present.

Acked-by: Conor Dooley <[email-masked]>
Signed-off-by: Manikandan Muralidharan <[email-masked]>
---
Changes in v5:
- drop min/maxItems around clock
- use else clause
- cosmetic fixes

Changes in v4:
- Define and describe the clock in the top-level properties

 .../devicetree/bindings/i3c/mipi-i3c-hci.yaml | 27 ++++++++++++++++---
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml b/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml
index 39bb1a1784c9..d488fb420945 100644
--- a/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml
+++ b/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml
@@ -9,9 +9,6 @@ title: MIPI I3C HCI
 maintainers:
   - Nicolas Pitre <[email-masked]>
 
-allOf:
-  - $ref: /schemas/i3c/i3c.yaml#
-
 description: |
   MIPI I3C Host Controller Interface
 
@@ -28,9 +25,17 @@ description: |
 
 properties:
   compatible:
-    const: mipi-i3c-hci
+    enum:
+      - mipi-i3c-hci
+      - microchip,sama7d65-i3c-hci
   reg:
     maxItems: 1
+
+  clocks:
+    items:
+      - description: Peripheral bus clock
+      - description: System Generic clock
+
   interrupts:
     maxItems: 1
 
@@ -39,6 +44,20 @@ required:
   - reg
   - interrupts
 
+allOf:
+  - $ref: /schemas/i3c/i3c.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: microchip,sama7d65-i3c-hci
+    then:
+      required:
+        - clocks
+    else:
+      properties:
+        clocks: false
+
 unevaluatedProperties: false
 
 examples:
-- 
2.25.1