[PATCH] New yaml file: tas2781

[Kevin Lu]

Add DTS discription for tas2781 driver code

Signed-off-by: Kevin Lu <luminlong at 139.com>
---
 .../devicetree/bindings/sound/tas2781.yaml    | 90 +++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/tas2781.yaml

diff --git a/Documentation/devicetree/bindings/sound/tas2781.yaml b/Documentation/devicetree/bindings/sound/tas2781.yaml
new file mode 100644
index 000000000..96fa45bf6
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/tas2781.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/sound/tas2781.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Texas Instruments TAS2781 Smart PA
+
+maintainers:
+  - Shenghao Ding <shenghao-ding at ti.com>
+  - Kevin Lu <kevin-lu at ti.com>
+
+description: |
+  The TAS2781 is a mono, digital input Class-D audio amplifier
+  optimized for efficiently driving high peak power into small
+  loudspeakers. Integrated an on-chip DSP supports Texas Instruments
+  Smart Amp speaker protection algorithm. The integrated speaker
+  voltage and current sense provides for real time
+  monitoring of loudspeaker behavior.
+
+properties:
+  compatible:
+    enum:
+      - ti,tas2781
+      - ti,audev
+    description: |
+        ti,audev will disable the irq of tas2781.
+  reg:
+    maxItems: 1
+    description: |
+       I2C address of the device can be between 0x38 to 0x40.
+
+  reset-gpioN:
+    maxItems: 4
+    description: GPIO used to reset the device.
+
+  ti,topleft-channel:
+    maxItems: 1
+    description: I2C Address for each specific device.
+
+  ti,topright-channel:
+    maxItems: 1
+
+  ti,bottomleft-channel:
+    maxItems: 1
+
+  ti,bottomright-channel:
+    maxItems: 1
+
+  ti,global-address:
+    maxItems: 1
+    description: This item is not mandatory. if the device support gloabel mode, this item should be active.
+
+  ti,irq-gpio:
+    maxItems: 1
+    description: GPIO used to interrupt the device.
+
+  '#sound-dai-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+   #include <dt-bindings/gpio/gpio.h>
+   i2c0 {
+     #address-cells = <1>;
+     #size-cells = <0>;
+     codec: codec at 38 {
+       compatible = "ti,tas2781";
+       reg = <0x38>;
+       #sound-dai-cells = <1>;
+       ti,topleft-channel = <0x38>;
+       ti,topright-channel = <0x39>;
+       ti,bottomright-channel = <0x3a>;
+       ti,bottomright-channel = <0x3b>;
+       ti,global-address = <0x40>;
+       ti,reset-gpio0 = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+       ti,reset-gpio1 = <&gpio1 11 GPIO_ACTIVE_HIGH>;
+       ti,reset-gpio2 = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+       ti,reset-gpio3 = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+       ti,irq-gpio = <&gpio1 15 0>;
+     };
+   };
+...
-- 
2.17.1