ASoC: Add codec driver for Cirrus Logic CS48L32 DSP

new file mode 100644
index 000000000000..bf087b57aaf6
@@ -0,0 +1,195 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/cirrus,cs48l32.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS48L32 audio DSP.
+
+maintainers:
+  - [email protected]
+
+description: |
+  The CS48L32 is a high-performance low-power audio DSP for smartphones and
+  other portable audio devices. The CS48L32 combines a programmable Halo Core
+  DSP with a variety of power-efficient fixed-function audio processors.
+
+  See also the binding headers:
+
+    include/dt-bindings/sound/cs48l32.yaml
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - cirrus,cs48l32
+
+  reg:
+    description: SPI chip-select number.
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 25000000
+
+  vdd-a-supply:
+    description: Regulator supplying VDD_A
+
+  vdd-d-supply:
+    description: Regulator supplying VDD_D
+
+  vdd-io-supply:
+    description: Regulator supplying VDD_IO
+
+  vdd-cp-supply:
+    description: Regulator supplying VDD_CP
+
+  reset-gpios:
+    description:
+      One entry specifying the GPIO controlling /RESET. Although optional,
+      it is strongly recommended to use a hardware reset.
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: The clock supplied on MCLK1
+
+  clock-names:
+    const: mclk1
+
+  '#sound-dai-cells':
+    const: 1
+
+  cirrus,in-type:
+    description: |
+      A list of input type settings for each ADC input.
+      Inputs are one of these types:
+        CS48L32_IN_TYPE_DIFF : analog differential (default)
+        CS48L32_IN_TYPE_SE :   analog single-ended
+
+      The type of the left (L) and right (R) channel on each input is
+      independently configured, as are the two groups of pins muxable to
+      the input (referred to in the datasheet as "1" and "2").
+
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description:
+          IN1L_1 analog input type. One of the CS48L32_IN_TYPE_xxx.
+        minimum: 0
+        maximum: 1
+        default: 0
+      - description:
+          IN1R_1 analog input type. One of the CS48L32_IN_TYPE_xxx.
+        minimum: 0
+        maximum: 1
+        default: 0
+      - description:
+          IN1L_2 analog input type. One of the CS48L32_IN_TYPE_xxx.
+        minimum: 0
+        maximum: 1
+        default: 0
+      - description:
+          IN1R_2 analog input type. One of the CS48L32_IN_TYPE_xxx.
+        minimum: 0
+        maximum: 1
+        default: 0
+
+  cirrus,pdm-sup:
+    description: |
+      Indicate which MICBIAS output supplies bias to the microphone.
+      There is one cell per input (IN1, IN2, ...).
+
+      One of the CS48L32_MICBIAS_xxx values.
+        CS48L32_PDM_SUP_VOUT_MIC : mic biased from VOUT_MIC
+        CS48L32_PDM_SUP_MICBIAS1 : mic biased from MICBIAS1
+
+      Also see the INn_PDM_SUP field in the datasheet.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: IN1 PDM supply source
+        minimum: 0
+        maximum: 1
+        default: 0
+      - description: IN2 PDM supply source
+        minimum: 0
+        maximum: 1
+        default: 0
+
+required:
+  - compatible
+  - reg
+  - vdd-a-supply
+  - vdd-d-supply
+  - vdd-io-supply
+  - vdd-cp-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/sound/cs48l32.h>
+
+    spi@e0006000 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        reg = <0xe0006000 0x1000>;
+
+        codec@1 {
+            compatible = "cirrus,cs48l32";
+
+            reg = <0x1>;
+            spi-max-frequency = <2500000>;
+
+            vdd-a-supply = <&regulator_1v8>;
+            vdd-d-supply = <&regulator_1v2>;
+            vdd-io-supply = <&regulator_1v8>;
+            vdd-cp-supply = <&regulator_1v8>;
+
+            reset-gpios = <&gpio 0 0>;
+
+            clocks = <&clks 0>;
+            clock-names = "mclk1";
+
+            interrupt-parent = <&gpio0>;
+            interrupts = <56 8>;
+
+            #sound-dai-cells = <1>;
+
+            cirrus,in-type = <
+                CS48L32_IN_TYPE_DIFF CS48L32_IN_TYPE_DIFF
+                CS48L32_IN_TYPE_SE   CS48L32_IN_TYPE_SE
+            >;
+
+            cirrus,pdm-sup = <
+              CS48L32_PDM_SUP_MICBIAS1 CS48L32_PDM_SUP_MICBIAS1
+            >;
+        };
+    };
+
+#
+# Minimal config
+#
+  - |
+    #include <dt-bindings/sound/cs48l32.h>
+
+    spi@e0006000 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        reg = <0xe0006000 0x1000>;
+
+        codec@1 {
+            compatible = "cirrus,cs48l32";
+
+            reg = <0x1>;
+
+            vdd-a-supply = <&regulator_1v8>;
+            vdd-d-supply = <&regulator_1v2>;
+            vdd-io-supply = <&regulator_1v8>;
+            vdd-cp-supply = <&regulator_1v8>;
+        };
+    };

index 96b827049501..b807a91a560e 100644
@@ -5708,6 +5708,7 @@ L:	[email protected]
 S:	Supported
 W:	https://github.com/CirrusLogic/linux-drivers/wiki
 T:	git https://github.com/CirrusLogic/linux-drivers.git
+F:	Documentation/devicetree/bindings/mfd/cirrus,cs48l32.yaml
 F:	Documentation/devicetree/bindings/mfd/cirrus,madera.yaml
 F:	Documentation/devicetree/bindings/pinctrl/cirrus,madera.yaml
 F:	Documentation/devicetree/bindings/sound/cirrus,madera.yaml

@@ -5716,6 +5717,8 @@ F:	drivers/irqchip/irq-madera*
 F:	drivers/mfd/cs47l*
 F:	drivers/mfd/madera*
 F:	drivers/pinctrl/cirrus/*
+F:	include/dt-bindings/interrupt-controller/cirrus-cs48l32.h
+F:	include/dt-bindings/sound/cs48l32.h
 F:	include/dt-bindings/sound/madera*
 F:	include/linux/irqchip/irq-madera*
 F:	include/linux/mfd/madera/*

index 870eb90116f1..083e8db05b9f 100644
@@ -103,6 +103,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_CS47L85
 	imply SND_SOC_CS47L90
 	imply SND_SOC_CS47L92
+	imply SND_SOC_CS48L32
 	imply SND_SOC_CS53L30
 	imply SND_SOC_CS530X_I2C
 	imply SND_SOC_CX20442

@@ -403,6 +404,7 @@ config SND_SOC_WM_ADSP
 	default y if SND_SOC_CS35L45_SPI=y
 	default y if SND_SOC_CS35L45_I2C=y
 	default y if SND_SOC_CS35L56=y
+	default y if SND_SOC_CS48L32=y
 	default m if SND_SOC_MADERA=m
 	default m if SND_SOC_CS47L24=m
 	default m if SND_SOC_WM5102=m

@@ -413,6 +415,7 @@ config SND_SOC_WM_ADSP
 	default m if SND_SOC_CS35L45_SPI=m
 	default m if SND_SOC_CS35L45_I2C=m
 	default m if SND_SOC_CS35L56=m
+	default m if SND_SOC_CS48L32=m
 
 config SND_SOC_AB8500_CODEC
 	tristate

@@ -1049,6 +1052,13 @@ config SND_SOC_CS47L92
 	tristate
 	depends on MFD_CS47L92
 
+config SND_SOC_CS48L32
+	tristate "Cirrus Logic CS48L32 audio DSP"
+	depends on SPI_MASTER
+	select REGMAP_SPI
+	help
+	  Build the codec driver for the Cirrus Logic CS48L32 audio DSP.
+
 # Cirrus Logic Quad-Channel ADC
 config SND_SOC_CS53L30
 	tristate "Cirrus Logic CS53L30 CODEC"

index 10f726066b6c..c125f69faeaf 100644
@@ -111,6 +111,7 @@ snd-soc-cs47l35-y := cs47l35.o
 snd-soc-cs47l85-y := cs47l85.o
 snd-soc-cs47l90-y := cs47l90.o
 snd-soc-cs47l92-y := cs47l92.o
+snd-soc-cs48l32-y := cs48l32.o cs48l32-tables.o
 snd-soc-cs53l30-y := cs53l30.o
 snd-soc-cs530x-y := cs530x.o
 snd-soc-cs530x-i2c-y := cs530x-i2c.o

@@ -529,6 +530,7 @@ obj-$(CONFIG_SND_SOC_CS47L35)	+= snd-soc-cs47l35.o
 obj-$(CONFIG_SND_SOC_CS47L85)	+= snd-soc-cs47l85.o
 obj-$(CONFIG_SND_SOC_CS47L90)	+= snd-soc-cs47l90.o
 obj-$(CONFIG_SND_SOC_CS47L92)	+= snd-soc-cs47l92.o
+obj-$(CONFIG_SND_SOC_CS48L32)	+= snd-soc-cs48l32.o
 obj-$(CONFIG_SND_SOC_CS53L30)	+= snd-soc-cs53l30.o
 obj-$(CONFIG_SND_SOC_CS530X)	+= snd-soc-cs530x.o
 obj-$(CONFIG_SND_SOC_CS530X_I2C)	+= snd-soc-cs530x-i2c.o