[PATCH v3 1/3] dt-bindings: net: bluetooth: add DT bindings for Realtek controllers

[Hugo Grostabussiat <bonstra@bonstra.fr.eu.org>]

The rtl_bt driver already supports some Realtek controllers on ACPI
platforms.
This commit adds bindings for DT-only platforms.

Signed-off-by: Hugo Grostabussiat <bonstra@bonstra.fr.eu.org>
---
 .../bindings/net/realtek-bluetooth.yaml       | 52 +++++++++++++++++++
 1 file changed, 52 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..6b62e5132c90
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/realtek-bluetooth.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek Bluetooth controllers device tree bindings
+
+description: |
+  Device tree bindings for serial attached Realtek Bluetooth controllers.
+
+maintainers:
+  - Marcel Holtmann <marcel@holtmann.org>
+  - Johan Hedberg <johan.hedberg@gmail.com>
+
+properties:
+  compatible:
+    items:
+      - const: realtek,rt8723bs-bt
+
+  powerdown-gpios:
+    description: GPIO line controlling the power down (BT_DIS#) signal
+    maxItems: 1
+
+  device-wake-gpios:
+    description: GPIO line controlling the device wakeup (BT_WAKE) signal
+    maxItems: 1
+
+  host-wake-gpios:
+    description: GPIO line sampling the host wakeup (BT_HOST_WAKE) signal
+    maxItems: 1
+
+  firmware-name:
+    description: |
+      Name of the configuration file to load in addition to firmware
+    $ref: http://devicetree.org/schemas/types.yaml#/definitions/string
+
+required:
+  - compatible
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    uart1 {
+      bluetooth {
+        compatible = "realtek,rtl8723bs-bt";
+        powerdown-gpios = <&r_pio 0 4 GPIO_ACTIVE_LOW>;
+        host-wake-gpios = <&r_pio 0 5 GPIO_ACTIVE_HIGH>;
+        device-wake-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>;
+        firmware-name = "rtl8723bs_config-teres_a64_i.bin";
+      };
+    };
-- 
2.24.0