netdev - [PATCH v3 1/2] dt-bindings: net: broadcom-bluetooth: Add property for autobaud mode

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Date:   Mon, 30 May 2022 17:02:17 +0200
From:   Hakan Jansson <hakan.jansson@...ineon.com>
To:     unlisted-recipients:; (no To-header on input)
CC:     Hakan Jansson <hakan.jansson@...ineon.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        "Luiz Augusto von Dentz" <luiz.dentz@...il.com>,
        <linux-bluetooth@...r.kernel.org>
Subject: [PATCH v3 1/2] dt-bindings: net: broadcom-bluetooth: Add property for autobaud mode

Add property, "brcm,requires-autobaud-mode", to enable autobaud mode
selection.

Some devices (e.g. CYW5557x) require autobaud mode to enable FW loading.
Autobaud mode can also be required on some boards where the controller
device is using a non-standard baud rate when first powered on.

Signed-off-by: Hakan Jansson <hakan.jansson@...ineon.com>
---
V2 -> V3:
  - Rename DT property and modify description
    https://lore.kernel.org/linux-devicetree/e6e83743-1441-dc53-fd1f-cdfb9a24932a@linaro.org/

V1 -> V2:
  - Modify property description

 .../devicetree/bindings/net/broadcom-bluetooth.yaml        | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
index 5aac094fd217..0a58d0fbcbc4 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
@@ -92,6 +92,13 @@ properties:
        pcm-sync-mode: slave, master
        pcm-clock-mode: slave, master
 
+  brcm,requires-autobaud-mode:
+    type: boolean
+    description:
+      Set this property if autobaud mode is required. Autobaud mode is required
+      if the device's initial baud rate in normal mode is not supported by the
+      host or if the device requires autobaud mode startup before loading FW.
+
   interrupts:
     items:
       - description: Handle to the line HOST_WAKE used to wake
-- 
2.25.1