linux-kernel - [PATCH v4 1/2] dt-bindings: net: bluetooth: nxp: Add support for 4M baudrate

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Message-Id: <20250619111629.30098-1-neeraj.sanjaykale@nxp.com>
Date: Thu, 19 Jun 2025 16:46:28 +0530
From: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
To: marcel@...tmann.org,
	luiz.dentz@...il.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: linux-bluetooth@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	amitkumar.karwar@....com,
	neeraj.sanjaykale@....com,
	sherry.sun@....com,
	manjeet.gupta@....com
Subject: [PATCH v4 1/2] dt-bindings: net: bluetooth: nxp: Add support for 4M baudrate

Add support for 4000000 as secondary baudrate.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
---
v2: Use the available 'max-speed' device tree property. (Krzysztof)
v3: No Change
v4: Add ref for max-speed. (Krzysztof)
---
 .../devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
index 3ab60c70286f..bb9ab5dd3b4a 100644
--- a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
+++ b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
@@ -34,6 +34,13 @@ properties:
       This property depends on the module vendor's
       configuration.
 
+  max-speed:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum:
+      - 3000000
+      - 4000000
+    default: 3000000
+
   firmware-name:
     maxItems: 1
 
@@ -78,6 +85,7 @@ examples:
         bluetooth {
             compatible = "nxp,88w8987-bt";
             fw-init-baudrate = <3000000>;
+            max-speed = <4000000>;
             firmware-name = "uartuart8987_bt_v0.bin";
             device-wakeup-gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
             nxp,wakein-pin = /bits/ 8 <18>;
-- 
2.34.1