linux-kernel - [PATCH v1] ASoC: dt-bindings: Add tas2505 audio amplifier

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Date:   Wed, 12 Jul 2023 12:40:06 +0800
From:   Kevin Lu <luminlong@....com>
To:     broonie@...nel.org, lgirdwood@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        tiwai@...e.com
Cc:     kevin-lu@...com, shenghao-ding@...com, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kevin Lu <luminlong@....com>
Subject: [PATCH v1] ASoC: dt-bindings: Add tas2505 audio amplifier

Create tas2505.yaml for tas2505.

Signed-off-by: Kevin Lu <luminlong@....com>
---
 .../devicetree/bindings/sound/tas2505.yaml    | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/tas2505.yaml

diff --git a/Documentation/devicetree/bindings/sound/tas2505.yaml b/Documentation/devicetree/bindings/sound/tas2505.yaml
new file mode 100644
index 0000000..6cc3fe4
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/tas2505.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2019 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/sound/tas2505.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Texas Instruments TAS2505 Mono Audio Amplifier
+
+maintainers:
+  - Kevin Lu <kevin-lu@...com>
+
+description: |
+  The TAS2505 is a mono Class-D speaker amp that supports both Digital
+  and Analog inputs. The device is ideal for automotive instrument cluster,
+  emergency call (eCall), and telematics applications. Direct I2S input
+  removes the need for an external DAC in the audio signal path.
+  An on-chip PLL provides the high speed clock needed by the DSP.
+  The volume level is register controlled.
+
+  Specifications about the audio amplifier can be found at:
+    https://www.ti.com/lit/gpn/tas2505
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - ti,tas2505
+
+  reg:
+    maxItems: 1
+    description: |
+       I2C address of the device can be set to 0x18.
+
+  reset-gpios:
+    maxItems: 1
+    description: GPIO used to reset the device.
+
+  clock-source:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Sets TDM clock sourse.
+    enum:
+      - 0 # Select MLCK
+      - 1 # Select BLCK
+
+  '#sound-dai-cells':
+    # The codec has a single DAI, the #sound-dai-cells=<1>; case is left in for backward
+    # compatibility but is deprecated.
+    enum: [0, 1]
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+   #include <dt-bindings/gpio/gpio.h>
+   i2c {
+     #address-cells = <1>;
+     #size-cells = <0>;
+     codec: codec@18 {
+       compatible = "ti,tas2505";
+       reg = <0x18>;
+       #sound-dai-cells = <0>;
+       reset-gpios = <&gpio4 21 GPIO_ACTIVE_LOW>;
+       clock-source = <0>;
+     };
+   };
-- 
2.34.1