[v6,4/4] ASoC: dt-bindings: Add tas2781 amplifier

Commit Message

Shenghao Ding June 18, 2023, 12:28 p.m. UTC

Create tas2781.yaml for tas2781 driver.

Signed-off-by: Shenghao Ding <[e-mail]>

---
Changes in v6:
 - correct the value of #sound-dai-cells
 - Add minItems for reg property
 - correct the description
 - remove ti,broadcast-addr
 - remove address-cells
 - remove size-cells
 - put compatible item first in properties
 - change the maxItems of reg from 4 to 8
 - remove white space around <>
 - correct the reg format to <0x38>, <0x3a> etc
 - remove '\t' in the file
 - correct a comment in the example
---
 .../devicetree/bindings/sound/ti,tas2781.yaml | 74 +++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/ti,tas2781.yaml

Comments

Krzysztof Kozlowski June 19, 2023, 6:21 a.m. UTC | #1

On 18/06/2023 14:28, Shenghao Ding wrote:
> Create tas2781.yaml for tas2781 driver.
> 
> Signed-off-by: Shenghao Ding <[e-mail]>
> 

Reviewed-by: Krzysztof Kozlowski <[e-mail]>

Best regards,
Krzysztof

Patch

diff --git a/Documentation/devicetree/bindings/sound/ti,tas2781.yaml b/Documentation/devicetree/bindings/sound/ti,tas2781.yaml
new file mode 100644
index 000000000000..8d60e4e236d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,tas2781.yaml
@@ -0,0 +1,74 @@ 
+# 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 <[e-mail]>
+
+description:
+  The TAS2781 is a mono, digital input Class-D audio amplifier
+  optimized for efficiently driving high peak power into small
+  loudspeakers. An integrated 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.
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - ti,tas2781
+
+  reg:
+    description:
+      I2C address, in multiple tas2781s case, all the i2c address
+      aggreate as one Audio Device to support multiple audio slots.
+    maxItems: 8
+    minItems: 1
+    items:
+      minimum: 0x38
+      maximum: 0x3f
+
+  reset-gpios:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  '#sound-dai-cells':
+    const: 0
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+   #include <dt-bindings/gpio/gpio.h>
+   i2c {
+     /* example with quad tas2781s, such as tablet or pad device */
+     #address-cells = <1>;
+     #size-cells = <0>;
+     quad_tas2781: tas2781@38 {
+       compatible = "ti,tas2781";
+       reg = <0x38>, /* Audio slot 0 */
+             <0x3a>, /* Audio slot 1 */
+             <0x39>, /* Audio slot 2 */
+             <0x3b>; /* Audio slot 3 */
+
+       #sound-dai-cells = <0>;
+       reset-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+       interrupt-parent = <&gpio1>;
+       interrupts = <15>;
+     };
+   };
+...