linux-kernel - [PATCH v5] ASoC: dt-bindings: Add tas2781 amplifier

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Message-Id: <20230203040115.27321-1-13916275206@139.com>
Date:   Fri,  3 Feb 2023 12:01:15 +0800
From:   Shenghao Ding <13916275206@....com>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        broonie@...nel.org, lgirdwood@...il.com
Cc:     kevin-lu@...com, shenghao-ding@...com, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Shenghao Ding <13916275206@....com>
Subject: [PATCH v5] ASoC: dt-bindings: Add tas2781 amplifier

Create tas2781.yaml for tas2781 driver.

Signed-off-by: Shenghao Ding <13916275206@....com>

---
Changes in v5:
 - Drop the full stop in the Subject.
 - Drop the reset-gpios reference to gpio.txt.
 - Add Changelog.
 Changes to be committed:
	new file:   Documentation/devicetree/bindings/sound/ti,tas2781.yaml
---
 .../devicetree/bindings/sound/ti,tas2781.yaml | 87 +++++++++++++++++++
 1 file changed, 87 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 000000000000..8af44792a904
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,tas2781.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 - 2023 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 SmartAMP
+
+maintainers:
+  - Shenghao Ding <shenghao-ding@...com>
+  - Kevin Lu <kevin-lu@...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
+
+  reg:
+    maxItems: 1
+    description: |
+      I2C address of the device can be in range from 0x38 to 0x40.
+
+  reset-gpios:
+    maxItems: 1
+    description: |
+      A GPIO line handling reset of the chip. As the line is active high,
+      it should be marked GPIO_ACTIVE_HIGH.
+
+  interrupts:
+    maxItems: 1
+
+  ti,audio-slots:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 4
+    description: |
+      I2c address of the device for different audio slots,
+      useless in mono case.
+
+  ti,broadcast-addr:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Generic i2c address for all the tas2781 devices in
+      purpose of I2C broadcast during the multi-device
+      writes, useless in mono case.
+
+  '#sound-dai-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+   #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>;
+       reset-gpios = < &gpio1 10 GPIO_ACTIVE_HIGH >;
+       interrupt-parent = <&gpio1>;
+       interrupts = <15>;
+       ti,audio-slots = < 0x38 /* topleft-channel */
+                          0x39 /* topright-channel */
+                          0x3a /* bottomleft-channel */
+                          0x3b /* bottomright-channel */
+                        >;
+       ti,broadcast-addr = <0x40>;
+     };
+   };
+...
-- 
2.34.1