[PATCH v3 02/16] dt-bindings: remoteproc: k3-dsp: Allow a second sub-mailbox

[Tomeu Vizoso]

Allow specifying a second sub-mailbox that could be used by the firmware
in addition to the first one, which is taken by remoteproc.

This is required by firmware that doesn't use rpmsg for their
communication with the Linux kernel.

Assisted-by: LLM
Signed-off-by: Tomeu Vizoso <tomeu at tomeuvizoso.net>

---

v3:
- Initial version
---
 .../devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml        | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
index 278b88b7f906..d6319c8e96f8 100644
--- a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
@@ -51,10 +51,12 @@ properties:
 
   mboxes:
     description: |
-      OMAP Mailbox specifier denoting the sub-mailbox, to be used for
-      communication with the remote processor. This property should match
-      with the sub-mailbox node used in the firmware image.
-    maxItems: 1
+      OMAP Mailbox specifiers denoting the sub-mailboxes allotted to
+      communication with the remote processor. The first is the one the
+      remoteproc core uses and should match the sub-mailbox node used in the
+      firmware image. The second is optional.
+    minItems: 1
+    maxItems: 2
 
   memory-region:
     minItems: 2

-- 
2.54.0