[PATCH v1] Asoc: dt_bindings: Add tas2781 yaml

[Kevin Lu]

Complete the DTS for tas2781

Signed-off-by: Kevin Lu <luminlong@xxxxxxx>
---
 .../devicetree/bindings/sound/ti,tas2781.yaml | 122 ++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/ti,tas2781.yaml

diff --git a/Documentation/devicetree/bindings/sound/ti,tas2781.yaml b/Documentation/devicetree/bindings/sound/ti,tas2781.yaml
new file mode 100644
index 0000000..7d73f46
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,tas2781.yaml
@@ -0,0 +1,122 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,tas2781.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TAS2781 Smart PA
+
+maintainers:
+  - Shenghao Ding <shenghao-ding@xxxxxx>
+  - Kevin Lu <kevin-lu@xxxxxx>
+
+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
+
+  reg:
+    maxItems: 1
+    description: |
+      I2C address of the device can be in range from 0x38 to 0x40.
+
+  ti,audio-slots:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 4
+    description: |
+      This item is used to store the i2c address of the device
+      for deifferent audio slots. It is not required for Mono case.
+
+  ti,global-addr:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      This item is used to store the generic i2c address of
+      all the tas2781 devices for I2C broadcast during the multi-device
+      writes, useless in mono case.
+
+  ti,reset-gpios:
+    minItems: 1
+    maxItems: 4
+    description: GPIO specifier for the reset pin.
+
+  ti,irq-gpio:
+    maxItems: 1
+    description: GPIO used to interrupts the device.
+
+  '#sound-dai-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+   #include <dt-bindings/gpio/gpio.h>
+   i2c {
+     /* example with mono support */
+     #address-cells = <1>;
+     #size-cells = <0>;
+     mono: codec@38 {
+       compatible = "ti,tas2781";
+       reg = <0x38>;
+       #sound-dai-cells = <1>;
+       ti,reset-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+       ti,irq-gpio = <&gpio1 15 0>;
+     };
+   };
+  - |
+   #include <dt-bindings/gpio/gpio.h>
+   i2c {
+     /* Stereo without irq-gpio and global-addr */
+     #address-cells = <1>;
+     #size-cells = <0>;
+     stereo: codec@38 {
+       compatible = "ti,tas2781";
+       reg = <0x38>;
+       #sound-dai-cells = <1>;
+       ti,audio-slots = < 0x38 /* left-channel */
+                          0x39 /* right-channel */
+                        >;
+       ti,reset-gpios = < &gpio1 10 GPIO_ACTIVE_HIGH
+                          &gpio1 11 GPIO_ACTIVE_HIGH
+                        >;
+     };
+   };
+  - |
+   #include <dt-bindings/gpio/gpio.h>
+   i2c {
+     /* example with quad support, such as tablet or pad device */
+     #address-cells = <1>;
+     #size-cells = <0>;
+     quad: codec@38 {
+       compatible = "ti,tas2781";
+       reg = <0x38>;
+       #sound-dai-cells = <1>;
+       ti,audio-slots = < 0x38 /* topleft-channel */
+                          0x39 /* topright-channel */
+                          0x3a /* bottomleft-channel */
+                          0x3b /* bottomright-channel */
+                        >;
+       ti,global-addr = <0x40>;
+       ti,reset-gpios = < &gpio1 10 GPIO_ACTIVE_HIGH
+                          &gpio1 11 GPIO_ACTIVE_HIGH
+                          &gpio1 12 GPIO_ACTIVE_HIGH
+                          &gpio1 13 GPIO_ACTIVE_HIGH
+                        >;
+       ti,irq-gpio = <&gpio1 15 0>;
+     };
+   };
+...
-- 
2.34.1