[PATCH v2 1/2] dt-bindings: net: broadcom-bluetooth: Add property for autobaud mode

[Hakan Jansson]

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.

This patch adds a property, "brcm,uses-autobaud-mode", to enable autobaud
mode selection.

Signed-off-by: Hakan Jansson <hakan.jansson@xxxxxxxxxxxx>
---
V1 -> V2: Modify property description

 .../devicetree/bindings/net/broadcom-bluetooth.yaml      | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
index 5aac094fd217..a29f059c21cc 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
@@ -92,6 +92,15 @@ properties:
        pcm-sync-mode: slave, master
        pcm-clock-mode: slave, master
 
+  brcm,uses-autobaud-mode:
+    type: boolean
+    description: >
+      Setting this property will make the host (driver) assert the controller
+      chip's BT_UART_CTS_N prior to asserting BT_REG_ON. This will make the
+      controller start up in autobaud mode. The controller will then detect the
+      baud rate of the first incoming (HCI Reset) command from the host and
+      subsequently use that baud rate.
+
   interrupts:
     items:
       - description: Handle to the line HOST_WAKE used to wake
-- 
2.25.1