linux-kernel - [PATCH v3 1/3] dt-bindings: net: bluetooth: Add support for Amlogic Bluetooth

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Message-Id: <20240802-btaml-v3-1-d8110bf9963f@amlogic.com>
Date: Fri, 02 Aug 2024 17:39:47 +0800
From: Yang Li via B4 Relay <devnull+yang.li.amlogic.com@...nel.org>
To: Marcel Holtmann <marcel@...tmann.org>, 
 Luiz Augusto von Dentz <luiz.dentz@...il.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, Yang Li <yang.li@...ogic.com>
Subject: [PATCH v3 1/3] dt-bindings: net: bluetooth: Add support for
 Amlogic Bluetooth

From: Yang Li <yang.li@...ogic.com>

Add binding document for Amlogic Bluetooth chipsets attached over UART.

Signed-off-by: Yang Li <yang.li@...ogic.com>
---
 .../bindings/net/bluetooth/amlogic,w155s2-bt.yaml  | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/bluetooth/amlogic,w155s2-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/amlogic,w155s2-bt.yaml
new file mode 100644
index 000000000000..c0c4209cd687
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/amlogic,w155s2-bt.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2024 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth/amlogic,w155s2-bt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Bluetooth chips
+
+description:
+  The W155S2 is an Amlogic Bluetooth and Wi-Fi combo chip. It works on
+  the standard H4 protocol via a 4-wire UART interface, with baud rates
+  up to 4 Mbps.
+
+maintainers:
+  - Yang Li <yang.li@...ogic.com>
+
+properties:
+  compatible:
+    oneOf:
+      - const: amlogic,w155s2-bt
+      - items:
+          - enum:
+              - amlogic,w265s1-bt
+              - amlogic,w265p1-bt
+              - amlogic,w265s2-bt
+          - const: amlogic,w155s2-bt
+
+  clocks:
+    maxItems: 1
+    description: clock provided to the controller (32.768KHz)
+
+  enable-gpios:
+    maxItems: 1
+
+  vddio-supply:
+    description: VDD_IO supply regulator handle
+
+  firmware-name:
+    maxItems: 1
+    description: specify the path of firmware bin to load
+
+required:
+  - compatible
+  - enable-gpios
+  - vddio-supply
+  - clocks
+  - firmware-name
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    bluetooth {
+        compatible = "amlogic,w155s2-bt";
+        clocks = <&extclk>;
+        enable-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+        vddio-supply = <&wcn_3v3>;
+        firmware-name = "amlogic/aml_w155s2_bt_uart.bin";
+    };
+

-- 
2.42.0