Squashed 'dts/upstream/' content from commit aaba2d45dc2a

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diff --git a/Bindings/sound/asahi-kasei,ak5558.yaml b/Bindings/sound/asahi-kasei,ak5558.yaml
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/asahi-kasei,ak5558.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AK5558 8 channel differential 32-bit delta-sigma ADC
+
+maintainers:
+  - Junichi Wakasugi <wakasugi.jb@om.asahi-kasei.co.jp>
+  - Mihai Serban <mihai.serban@nxp.com>
+
+properties:
+  compatible:
+    enum:
+      - asahi-kasei,ak5552
+      - asahi-kasei,ak5558
+
+  reg:
+    maxItems: 1
+
+  avdd-supply:
+    description: A 1.8V supply that powers up the AVDD pin.
+
+  dvdd-supply:
+    description: A 1.2V supply that powers up the DVDD pin.
+
+  reset-gpios:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        ak5558: codec@10 {
+            compatible = "asahi-kasei,ak5558";
+            reg = <0x10>;
+            reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+        };
+    };