ASoC: cs4234: Add dtschema binding document

new file mode 100644
index 000000000000..156560b2a980
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/cirrus,cs4234.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic cs4234 audio CODEC
+
+maintainers:
+  - [email protected]
+
+description:
+  The CS4234 is a highly versatile CODEC that combines 4 channels of
+  high performance analog to digital conversion, 4 channels of high
+  performance digital to analog conversion for audio, and 1 channel of
+  digital to analog conversion to provide a nondelayed audio reference
+  signal to an external Class H tracking power supply. If not used to
+  drive a tracking power supply, the 5th DAC can instead be used as a
+  standard audio grade DAC, with performance specifications identical
+  to that of the 4 DACs in the audio path. Additionally, the CS4234
+  includes tunable group delay for each of the 4 audio DAC paths to
+  provide lead time for the external switch-mode power supply, and a
+  nondelayed path into the DAC outputs for input signals requiring a
+  low-latency path to the outputs.
+
+properties:
+  compatible:
+    enum:
+      - cirrus,cs4234
+
+  reg:
+    description:
+      The 7-bit I2C address depends on the state of the ADx pins, in
+      binary given by [0 0 1 0 AD2 AD1 AD0 0].
+    items:
+      minimum: 0x10
+      maximum: 0x17
+
+  VA-supply:
+    description:
+      Analogue power supply.
+
+  VL-supply:
+    description:
+      Interface power supply.
+
+  reset-gpios:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - VA-supply
+  - VL-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c@e0004000 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        reg = <0xe0004000 0x1000>;
+
+        cs4234: codec@11 {
+            compatible = "cirrus,cs4234";
+            reg = <0x11>;
+
+            VA-supply = <&vdd3v3>;
+            VL-supply = <&vdd3v3>;
+
+            reset-gpios = <&gpio 0>;
+        };
+    };

index af3b93cdb6c9..e1ea7d19a077 100644
@@ -64,6 +64,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_CS42L52
 	imply SND_SOC_CS42L56
 	imply SND_SOC_CS42L73
+	imply SND_SOC_CS4234
 	imply SND_SOC_CS4265
 	imply SND_SOC_CS4270
 	imply SND_SOC_CS4271_I2C

@@ -282,7 +283,6 @@ config SND_SOC_ALL_CODECS
 	  uses them is also built since they are only usable with a machine
 	  driver.  Selecting this option will allow these drivers to be built
 	  without an explicit machine driver for test and development purposes.
-
 	  Support for the bus types used to access the codecs to be built must
 	  be selected separately.
 

@@ -592,6 +592,11 @@ config SND_SOC_CS42L73
 	tristate "Cirrus Logic CS42L73 CODEC"
 	depends on I2C
 
+config SND_SOC_CS4234
+	tristate "Cirrus Logic CS4234 CODEC"
+	depends on I2C
+	select REGMAP_I2C
+
 config SND_SOC_CS4265
 	tristate "Cirrus Logic CS4265 CODEC"
 	depends on I2C

index 2e5a79b55102..0404bc1ddcfb 100644
@@ -57,6 +57,7 @@ snd-soc-cs42l51-i2c-objs := cs42l51-i2c.o
 snd-soc-cs42l52-objs := cs42l52.o
 snd-soc-cs42l56-objs := cs42l56.o
 snd-soc-cs42l73-objs := cs42l73.o
+snd-soc-cs4234-objs := cs4234.o
 snd-soc-cs4265-objs := cs4265.o
 snd-soc-cs4270-objs := cs4270.o
 snd-soc-cs4271-objs := cs4271.o

@@ -364,6 +365,7 @@ obj-$(CONFIG_SND_SOC_CS42L51_I2C)	+= snd-soc-cs42l51-i2c.o
 obj-$(CONFIG_SND_SOC_CS42L52)	+= snd-soc-cs42l52.o
 obj-$(CONFIG_SND_SOC_CS42L56)	+= snd-soc-cs42l56.o
 obj-$(CONFIG_SND_SOC_CS42L73)	+= snd-soc-cs42l73.o
+obj-$(CONFIG_SND_SOC_CS4234)	+= snd-soc-cs4234.o
 obj-$(CONFIG_SND_SOC_CS4265)	+= snd-soc-cs4265.o
 obj-$(CONFIG_SND_SOC_CS4270)	+= snd-soc-cs4270.o
 obj-$(CONFIG_SND_SOC_CS4271)	+= snd-soc-cs4271.o

index d746519253c3..1d9a57d3992f 100644
@@ -4170,6 +4170,7 @@ CIRRUS LOGIC AUDIO CODEC DRIVERS
 M:	James Schulman <[email protected]>
 M:	David Rhodes <[email protected]>
 L:	[email protected] (moderated for non-subscribers)
+L:	[email protected]
 S:	Maintained
 F:	sound/soc/codecs/cs*