linux-kernel - [PATCH v2 1/5] dt-bindings: net: Add generic Bluetooth controller

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Message-Id: <20220907170935.11757-2-sven@svenpeter.dev>
Date:   Wed,  7 Sep 2022 19:09:31 +0200
From:   Sven Peter <sven@...npeter.dev>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Sven Peter <sven@...npeter.dev>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Hector Martin <marcan@...can.st>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        asahi@...ts.linux.dev, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Balakrishna Godavarthi <bgodavar@...eaurora.org>,
        Rocky Liao <rjliao@...eaurora.org>,
        linux-arm-msm@...r.kernel.org
Subject: [PATCH v2 1/5] dt-bindings: net: Add generic Bluetooth controller


Bluetooth controllers share the common local-bd-address property.
Add a generic YAML schema to replace bluetooth.txt for those.

Signed-off-by: Sven Peter <sven@...npeter.dev>
---
changes from v1:
  - removed blueetooth.txt instead of just replacing it with a
    deprecation note
  - replaced references to bluetooth.txt

checkpatch complains here because it thinks I do to many things at once,
I think it's better to replace bluetooth.txt in single commit though.
Let me know if you prefer this to be split into multiple commits
instead.

.../bindings/net/bluetooth-controller.yaml    | 30 +++++++++++++++++++
 .../devicetree/bindings/net/bluetooth.txt     |  5 ----
 .../bindings/net/qualcomm-bluetooth.yaml      |  4 +--
 .../bindings/soc/qcom/qcom,wcnss.yaml         |  8 ++---
 4 files changed, 35 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/bluetooth-controller.yaml
 delete mode 100644 Documentation/devicetree/bindings/net/bluetooth.txt

diff --git a/Documentation/devicetree/bindings/net/bluetooth-controller.yaml b/Documentation/devicetree/bindings/net/bluetooth-controller.yaml
new file mode 100644
index 000000000000..0ea8a20e30f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth-controller.yaml
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bluetooth Controller Generic Binding
+
+maintainers:
+  - Marcel Holtmann <marcel@...tmann.org>
+  - Johan Hedberg <johan.hedberg@...il.com>
+  - Luiz Augusto von Dentz <luiz.dentz@...il.com>
+
+properties:
+  $nodename:
+    pattern: "^bluetooth(@.*)?$"
+
+  local-bd-address:
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+    minItems: 6
+    maxItems: 6
+    description:
+      Specifies the BD address that was uniquely assigned to the Bluetooth
+      device. Formatted with least significant byte first (little-endian), e.g.
+      in order to assign the address 00:11:22:33:44:55 this property must have
+      the value [55 44 33 22 11 00].
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/net/bluetooth.txt b/Documentation/devicetree/bindings/net/bluetooth.txt
deleted file mode 100644
index 94797df751b8..000000000000
--- a/Documentation/devicetree/bindings/net/bluetooth.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-The following properties are common to the Bluetooth controllers:
-
-- local-bd-address: array of 6 bytes, specifies the BD address that was
-  uniquely assigned to the Bluetooth device, formatted with least significant
-  byte first (little-endian).
diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.yaml b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.yaml
index f93c6e7a1b59..77eefa883d0a 100644
--- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.yaml
@@ -79,8 +79,7 @@ properties:
   firmware-name:
     description: specify the name of nvm firmware to load
 
-  local-bd-address:
-    description: see Documentation/devicetree/bindings/net/bluetooth.txt
+  local-bd-address: true
 
 
 required:
@@ -89,6 +88,7 @@ required:
 additionalProperties: false
 
 allOf:
+  - $ref: bluetooth-controller.yaml#
   - if:
       properties:
         compatible:
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml
index 5320504bb5e0..a1417cf30a32 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml
@@ -42,15 +42,13 @@ properties:
   bluetooth:
     type: object
     additionalProperties: false
+    allOf:
+      - $ref: /schemas/net/bluetooth-controller.yaml#
     properties:
       compatible:
         const: qcom,wcnss-bt
 
-      local-bd-address:
-        $ref: /schemas/types.yaml#/definitions/uint8-array
-        maxItems: 6
-        description:
-          See Documentation/devicetree/bindings/net/bluetooth.txt
+      local-bd-address: true
 
     required:
       - compatible
-- 
2.25.1