Thread (6 messages) 6 messages, 2 authors, 2021-04-14
STALE1877d LANDED: 7 (7M)
Revisions (4)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 current

[PATCH v4 1/2] dt-bindings: remoteproc: stm32-rproc: add new mailbox channel for detach

From: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Date: 2021-03-31 07:36:38
Also in: linux-devicetree, linux-remoteproc, lkml
Subsystem: open firmware and flattened device tree bindings, remote processor (remoteproc) subsystem, the rest · Maintainers: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Bjorn Andersson, Mathieu Poirier, Linus Torvalds

Add the "detach" mailbox item, that allows to define a mailbox to
send a IPCC signal to the remote processor on remoteproc detach action.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../bindings/remoteproc/st,stm32-rproc.yaml           | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
index a1171dfba024..64afdcfb613d 100644
--- a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
@@ -65,16 +65,23 @@ properties:
           Unidirectional channel:
             - from local to remote, where ACK from the remote means that it is
               ready for shutdown
+      - description: |
+          A channel (d) used by the local proc to notify the remote proc that it
+          has to stop interprocessor communnication.
+          Unidirectional channel:
+            - from local to remote, where ACK from the remote means that communnication
+              as been stopped on the remote side.
     minItems: 1
-    maxItems: 3
+    maxItems: 4
 
   mbox-names:
     items:
       - const: vq0
       - const: vq1
       - const: shutdown
+      - const: detach
     minItems: 1
-    maxItems: 3
+    maxItems: 4
 
   memory-region:
     description:
-- 
2.17.1


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