linux-kernel - [PATCH 2/3] dt-bindings: remoteproc: stm32_rproc: update for firmware synchronization

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Message-ID: <20200827072101.26588-3-arnaud.pouliquen@st.com>
Date:   Thu, 27 Aug 2020 09:21:00 +0200
From:   Arnaud Pouliquen <arnaud.pouliquen@...com>
To:     Rob Herring <robh@...nel.org>,
        Alexandre Torgue <alexandre.torgue@...com>
CC:     <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Fabien Dessenne <fabien.dessenne@...com>,
        Arnaud Pouliquen <arnaud.pouliquen@...com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Subject: [PATCH 2/3] dt-bindings: remoteproc: stm32_rproc: update for firmware synchronization

Add new properties description used to attach to a pre-loaded
firmware according to the commit 9276536f455b3
("remoteproc: stm32: Parse syscon that will manage M4 synchronisation")
which updates the driver part.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...com>
---
 .../bindings/remoteproc/st,stm32-rproc.yaml   | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
index 4ffa25268fcc..e50957d86b1c 100644
--- a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
@@ -96,6 +96,25 @@ properties:
         3rd cell: register bitmask for the deep sleep bit
     maxItems: 1
 
+  st,syscfg-m4-state:
+    $ref: "/schemas/types.yaml#/definitions/phandle-array"
+    description: |
+      Reference to the tamp register which exposes the Cortex-M4 state.
+        1st cell: phandle to syscon block
+        2nd cell: register offset containing the Cortex-M4 state
+        3rd cell: register bitmask for the Cortex-M4 state
+    maxItems: 1
+
+  st,syscfg-rsc-tbl:
+    $ref: "/schemas/types.yaml#/definitions/phandle-array"
+    description: |
+      Reference to the tamp register which references the Cortex-M4
+      resource table address.
+        1st cell: phandle to syscon block
+        2nd cell: register offset containing the resource table address
+        3rd cell: register bitmask for the resource table address
+    maxItems: 1
+
   st,auto-boot:
     $ref: /schemas/types.yaml#/definitions/flag
     description:
-- 
2.17.1