linux-kernel - [PATCH v4 1/3] dt-bindings: net: bluetooth: Add rtl8723bs-bluetooth

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Message-Id: <20200422035333.1118351-1-alistair@alistair23.me>
Date:   Tue, 21 Apr 2020 20:53:31 -0700
From:   Alistair Francis <alistair@...stair23.me>
To:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        marcel@...tmann.org, johan.hedberg@...il.com,
        linux-bluetooth@...r.kernel.org, mripard@...nel.org, wens@...e.org
Cc:     anarsoul@...il.com, devicetree@...r.kernel.org,
        alistair23@...il.com, linux-arm-kernel@...ts.infradead.org,
        Alistair Francis <alistair@...stair23.me>
Subject: [PATCH v4 1/3] dt-bindings: net: bluetooth: Add rtl8723bs-bluetooth

From: Vasily Khoruzhick <anarsoul@...il.com>

Add binding document for bluetooth part of RTL8723BS/RTL8723CS

Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com>
Signed-off-by: Alistair Francis <alistair@...stair23.me>
---
 .../bindings/net/realtek-bluetooth.yaml       | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/realtek-bluetooth.yaml

diff --git a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
new file mode 100644
index 000000000000..4eb141b00fcb
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/realtek,rtl8723bs-bt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RTL8723BS/RTL8723CS/RTL8822CS Bluetooth Device Tree Bindings
+
+maintainers:
+  - Vasily Khoruzhick <anarsoul@...il.com>
+  - Alistair Francis <alistair@...stair23.me>
+
+description:
+  RTL8723CS/RTL8723CS/RTL8822CS is WiFi + BT chip. WiFi part is connected over
+  SDIO, while BT is connected over serial. It speaks H5 protocol with few
+  extra commands to upload firmware and change module speed.
+
+properties:
+  compatible:
+    oneOf:
+      - const: "realtek,rtl8723bs-bt"
+      - const: "realtek,rtl8723cs-bt"
+      - const: "realtek,rtl8822cs-bt"
+
+  device-wake-gpios:
+    maxItems: 1
+    description: GPIO specifier, used to wakeup the BT module
+
+  enable-gpios:
+    maxItems: 1
+    description: GPIO specifier, used to enable the BT module
+
+  host-wake-gpios:
+    maxItems: 1
+    description: GPIO specifier, used to wakeup the host processor
+
+required:
+  - compatible
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    uart1 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+        uart-has-rtscts = <1>;
+
+        bluetooth {
+            compatible = "realtek,rtl8723bs-bt";
+            device-wake-gpios = <&r_pio 0 5 GPIO_ACTIVE_HIGH>; /* PL5 */
+            host-wakeup-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+        };
+    };
-- 
2.26.0