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

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Message-Id: <20220416004024.210418-1-ryan.lee.analog@gmail.com>
Date:   Fri, 15 Apr 2022 17:40:23 -0700
From:   Ryan Lee <ryan.lee.analog@...il.com>
To:     lgirdwood@...il.com, broonie@...nel.org, robh+dt@...nel.org,
        krzk+dt@...nel.org, perex@...ex.cz, tiwai@...e.com,
        srinivas.kandagatla@...aro.org, ckeepax@...nsource.cirrus.com,
        tanureal@...nsource.cirrus.com, cy_huang@...htek.com,
        pierre-louis.bossart@...ux.intel.com,
        drhodes@...nsource.cirrus.com, pbrobinson@...il.com,
        hdegoede@...hat.com, lukas.bulwahn@...il.com, stephan@...hold.net,
        arnd@...db.de, ryan.lee.analog@...il.com,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, ryans.lee@...log.com
Subject: [PATCH 1/2] ASoC: dt-bindings: max98396: add amplifier driver

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

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

Signed-off-by: Ryan Lee <ryans.lee@...log.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@...log.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