From: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Date: Mon, 23 Jun 2025 09:13:21 +0000 (+0530)
Subject: dt-bindings: net: bluetooth: nxp: Add support for 4M baudrate
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4112e29a33d98afe107e62d94c884514ffbcb21b;p=thirdparty%2Flinux.git

dt-bindings: net: bluetooth: nxp: Add support for 4M baudrate

Add support for 4000000 as secondary baudrate for NXP chipsets
supporting max baudrate as 4M, and are close to the host processor on
same PCB. This mainly helps with faster FW download.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---

diff --git a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
index 3ab60c70286f5..bb9ab5dd3b4af 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>;