[PATCH 1/2] ASoC: dt-bindings: max98396: add amplifier driver

Ryan Lee
2022-04-19T11:56:49Z

From: Ryan Lee <ryans.lee@analog.com>

This patch adds dt-bindings information for Analog Devices MAX98396
and MAX98397 Smart Amplifier.

Signed-off-by: Ryan Lee <ryans.lee@analog.com>
---
.../bindings/sound/adi,max98396.yaml | 84 +++++++++++++++++++
1 file changed, 84 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/adi,max98396.yaml

diff --git a/Documentation/devicetree/bindings/sound/adi,max98396.yaml b/Documentation/devicetree/bindings/sound/adi,max98396.yaml
new file mode 100644
index 000000000000..4aee32f43ad1
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/adi,max98396.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/adi,max98396.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX98396 Speaker Amplifier Device Tree Bindings
+
+maintainers:
+ - Ryan Lee <ryans.lee@analog.com>
+
+description:
+ The MAX98396 is a mono Class-DG speaker amplifier with I/V sense.
+ The device provides a PCM interface for audio data and a standard
+ I2C interface for control data communication.
+ The MAX98397 is a variant of MAX98396 with wide input supply range.
+
+properties:
+ compatible:
+ enum:
+ - adi,max98396
+ - adi,max98397
+ reg:
+ maxItems: 1
+ description: I2C address of the device.
+
+ adi,vmon-slot-no:
+ description: slot number of the voltage sense monitor
+ minimum: 0
+ maximum: 15
+ default: 0
+
+ adi,imon-slot-no:
+ description: slot number of the current sense monitor
+ minimum: 0
+ maximum: 15
+ default: 0
+
+ adi,spkfb-slot-no:
+ description: slot number of speaker DSP monitor
+ minimum: 0
+ maximum: 15
+ default: 0
+
+ adi,interleave-mode:
+ type: boolean
+ description: For cases where a single combined channel for the I/V sense data is not sufficient,
+ the device can also be configured to share a single data output channel on alternating frames.
+ In this configuration, the current and voltage data will be frame interleaved on a single output channel.
+ default: false
+
+ reset-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ max98396: amplifier@39 {
+ compatible = "adi,max98396";
+ reg = <0x39>;
+ adi,vmon-slot-no = <0>;
+ adi,imon-slot-no = <1>;
+ adi,interleave-mode = <0>;
+ reset-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+ };
+ max98397: amplifier@3c {
+ compatible = "adi,max98397";
+ reg = <0x3c>;
+ adi,vmon-slot-no = <0>;
+ adi,imon-slot-no = <1>;
+ adi,interleave-mode = <0>;
+ reset-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+ };
+ };
+
--
2.25.1