linux-kernel - [PATCH 07/12] dt-bindings: remoteproc: qcom,glink-edge: define re-usable schema for glink-edge

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Date:   Thu, 12 May 2022 12:00:01 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Sireesh Kodali <sireeshkodali1@...il.com>,
        Sibi Sankar <quic_sibis@...cinc.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 07/12] dt-bindings: remoteproc: qcom,glink-edge: define re-usable schema for glink-edge

'glink-edge' property appears in multiple bindings, so split it into one
place which can be re-used.  This reduces code duplication and strict
schema matching for glink-edge nodes (instead of just "type:object").

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../bindings/remoteproc/qcom,adsp.yaml        |  2 +-
 .../bindings/remoteproc/qcom,glink-edge.yaml  | 72 +++++++++++++++++++
 .../remoteproc/qcom,sc7280-wpss-pil.yaml      | 18 ++---
 3 files changed, 77 insertions(+), 15 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
index d04de60ae017..4dfbfece1ec7 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
@@ -154,7 +154,7 @@ properties:
       channels and devices related to the ADSP.
 
   glink-edge:
-    type: object
+    $ref: /schemas/remoteproc/qcom,glink-edge.yaml#
     description:
       Qualcomm G-Link subnode which represents communication edge, channels
       and devices related to the ADSP.
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml
new file mode 100644
index 000000000000..fa69f7b21eed
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,glink-edge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm G-Link Edge communication channel nodes
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@...aro.org>
+
+description:
+  Qualcomm G-Link subnode represents communication edge, channels and devices
+  related to the remote processor.
+
+properties:
+  $nodename:
+    const: "glink-edge"
+
+  apr:
+    $ref: /schemas/soc/qcom/qcom,apr.yaml#
+    description:
+      Qualcomm APR/GPR (Asynchronous/Generic Packet Router)
+
+  fastrpc:
+    type: object
+    description:
+      See Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
+
+  interrupts:
+    maxItems: 1
+
+  label:
+    description: The names of the state bits used for SMP2P output
+
+  mboxes:
+    maxItems: 1
+
+  qcom,remote-pid:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      ID of the shared memory used by GLINK for communication with remote
+      processor.
+
+required:
+  - interrupts
+  - label
+  - mboxes
+  - qcom,remote-pid
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/mailbox/qcom-ipcc.h>
+
+    remoteproc@...0000 {
+        reg = <0x08a00000 0x10000>;
+        // ...
+
+        glink-edge {
+            interrupts-extended = <&ipcc IPCC_CLIENT_WPSS
+                                         IPCC_MPROC_SIGNAL_GLINK_QMP
+                                         IRQ_TYPE_EDGE_RISING>;
+            mboxes = <&ipcc IPCC_CLIENT_WPSS
+                            IPCC_MPROC_SIGNAL_GLINK_QMP>;
+
+            label = "wpss";
+            qcom,remote-pid = <13>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml
index ade932468c38..3f06d66cbe47 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml
@@ -106,8 +106,8 @@ properties:
     const: stop
 
   glink-edge:
-    type: object
-    description: |
+    $ref: qcom,glink-edge.yaml#
+    description:
       Qualcomm G-Link subnode which represents communication edge, channels
       and devices related to the ADSP.
 
@@ -121,21 +121,11 @@ properties:
           - description: Mailbox for communication between APPS and WPSS
 
       label:
-        description: The names of the state bits used for SMP2P output
         items:
           - const: wpss
 
-      qcom,remote-pid:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description: ID of the shared memory used by GLINK for communication with WPSS
-
-    required:
-      - interrupts
-      - mboxes
-      - label
-      - qcom,remote-pid
-
-    additionalProperties: false
+      apr: false
+      fastrpc: false
 
 required:
   - compatible
-- 
2.32.0