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Subject[PATCH 1/2] ASoC: dt-bindings: rt9120: Add initial bindings
Date
From: ChiYuan Huang <cy_huang@richtek.com>

Add initial bindings for rt9120 audio amplifier.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
---
.../devicetree/bindings/sound/richtek,rt9120.yaml | 53 ++++++++++++++++++++++
1 file changed, 53 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/richtek,rt9120.yaml

diff --git a/Documentation/devicetree/bindings/sound/richtek,rt9120.yaml b/Documentation/devicetree/bindings/sound/richtek,rt9120.yaml
new file mode 100644
index 00000000..4d47a78
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/richtek,rt9120.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/richtek,rt9120.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT9120 Class-D audio amplifier
+
+maintainers:
+ - ChiYuan Huang <cy_huang@richtek.com>
+
+description: |
+ The RT9120 is a high efficiency, I2S-input, stereo audio power amplifier
+ delivering 2*20W into 8 Ohm BTL speaker loads. It supports the wide input
+ voltage range from 4.5V to 26.4V to meet the need on most common
+ applications like as TV, monitors. home entertainment, electronic music
+ equipment.
+
+properties:
+ compatible:
+ enum:
+ - richtek,rt9120
+
+ reg:
+ description: I2C device address
+ maxItems: 1
+
+ pwdnn-gpios:
+ description: GPIO used for power down, low active
+ maxItems: 1
+
+ richtek,use-dvdd-1p8v:
+ description: Indicate DVDD 1P8V is used, default for 3P3V or 5V design
+ type: boolean
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ rt9120@1a {
+ compatible = "richtek,rt9120";
+ reg = <0x1a>;
+ pwdnn-gpios = <&gpio26 2 0>;
+ richtek,use-dvdd-1p8v;
+ };
+ };
--
2.7.4
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