ASoC: codecs: add support for WCD939x Codec

Merge series from Neil Armstrong <neil.armstrong@linaro.org>:

Add the main WCD9390/WCD9395 Audio Codec driver to support:
- 4 ADC inputs for up to 5 Analog Microphones
- 4 DMIC inputs for up to 8 Digital Microphones
- 4 Microphone BIAS
- Stereo Headphone output
- Mono EAR output
- MBHC engine for Headset Detection

This adds:
- bindings
- MBHC changes to support Type-C muc
- Soundwire Slave driver
- Code driver

The USB Mux subsystem support will be submitted separately
since it's a functionally separate subsystem connected over
I2C with it's own reset signal.

Documentation/devicetree/bindings/sound/qcom,wcd938x.yaml

@@ -15,6 +15,7 @@ description: |
 
 allOf:
   - $ref: dai-common.yaml#
+  - $ref: qcom,wcd93xx-common.yaml#
 
 properties:
   compatible:
@@ -22,92 +23,12 @@ properties:
       - qcom,wcd9380-codec
       - qcom,wcd9385-codec
 
-  reset-gpios:
-    description: GPIO spec for reset line to use
-    maxItems: 1
-
   us-euro-gpios:
     description: GPIO spec for swapping gnd and mic segments
     maxItems: 1
 
-  vdd-buck-supply:
-    description: A reference to the 1.8V buck supply
-
-  vdd-rxtx-supply:
-    description: A reference to the 1.8V rx supply
-
-  vdd-io-supply:
-    description: A reference to the 1.8V I/O supply
-
-  vdd-mic-bias-supply:
-    description: A reference to the 3.8V mic bias supply
-
-  qcom,tx-device:
-    $ref: /schemas/types.yaml#/definitions/phandle-array
-    description: A reference to Soundwire tx device phandle
-
-  qcom,rx-device:
-    $ref: /schemas/types.yaml#/definitions/phandle-array
-    description: A reference to Soundwire rx device phandle
-
-  qcom,micbias1-microvolt:
-    description: micbias1 voltage
-    minimum: 1800000
-    maximum: 2850000
-
-  qcom,micbias2-microvolt:
-    description: micbias2 voltage
-    minimum: 1800000
-    maximum: 2850000
-
-  qcom,micbias3-microvolt:
-    description: micbias3 voltage
-    minimum: 1800000
-    maximum: 2850000
-
-  qcom,micbias4-microvolt:
-    description: micbias4 voltage
-    minimum: 1800000
-    maximum: 2850000
-
-  qcom,hphl-jack-type-normally-closed:
-    description: Indicates that HPHL jack switch type is normally closed
-    type: boolean
-
-  qcom,ground-jack-type-normally-closed:
-    description: Indicates that Headset Ground switch type is normally closed
-    type: boolean
-
-  qcom,mbhc-headset-vthreshold-microvolt:
-    description: Voltage threshold value for headset detection
-    minimum: 0
-    maximum: 2850000
-
-  qcom,mbhc-headphone-vthreshold-microvolt:
-    description: Voltage threshold value for headphone detection
-    minimum: 0
-    maximum: 2850000
-
-  qcom,mbhc-buttons-vthreshold-microvolt:
-    description:
-      Array of 8 Voltage threshold values corresponding to headset
-      button0 - button7
-    minItems: 8
-    maxItems: 8
-
-  '#sound-dai-cells':
-    const: 1
-
 required:
   - compatible
-  - reset-gpios
-  - qcom,tx-device
-  - qcom,rx-device
-  - qcom,micbias1-microvolt
-  - qcom,micbias2-microvolt
-  - qcom,micbias3-microvolt
-  - qcom,micbias4-microvolt
-  - "#sound-dai-cells"
 
 unevaluatedProperties: false
 

Documentation/devicetree/bindings/sound/qcom,wcd939x-sdw.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wcd939x-sdw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SoundWire devices on WCD9390/WCD9395
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+  Qualcomm WCD9390/WCD9395 Codec is a standalone Hi-Fi audio codec IC.
+  It has RX and TX Soundwire devices. This bindings is for the devices.
+
+properties:
+  compatible:
+    const: sdw20217010e00
+
+  reg:
+    maxItems: 1
+
+  qcom,tx-port-mapping:
+    description: |
+      Specifies static port mapping between device and host tx ports.
+      In the order of the device port index.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 4
+    maxItems: 4
+
+  qcom,rx-port-mapping:
+    description: |
+      Specifies static port mapping between device and host rx ports.
+      In the order of device port index.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 6
+    maxItems: 6
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    soundwire@3210000 {
+        #address-cells = <2>;
+        #size-cells = <0>;
+        reg = <0x03210000 0x2000>;
+        wcd938x_rx: codec@0,4 {
+            compatible = "sdw20217010e00";
+            reg = <0 4>;
+            qcom,rx-port-mapping = <1 2 3 4 5 6>;
+        };
+    };
+
+    soundwire@3230000 {
+        #address-cells = <2>;
+        #size-cells = <0>;
+        reg = <0x03230000 0x2000>;
+        wcd938x_tx: codec@0,3 {
+            compatible = "sdw20217010e00";
+            reg = <0 3>;
+            qcom,tx-port-mapping = <2 3 4 5>;
+        };
+    };
+
+...

Documentation/devicetree/bindings/sound/qcom,wcd939x.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wcd939x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm WCD9380/WCD9385 Audio Codec
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+  Qualcomm WCD9390/WCD9395 Codec is a standalone Hi-Fi audio codec IC.
+  It has RX and TX Soundwire devices.
+  The WCD9390/WCD9395 IC has a functionally separate USB-C Mux subsystem
+  accessible over an I2C interface.
+  The Audio Headphone and Microphone data path between the Codec and the USB-C Mux
+  subsystems are external to the IC, thus requiring DT port-endpoint graph description
+  to handle USB-C altmode & orientation switching for Audio Accessory Mode.
+
+allOf:
+  - $ref: dai-common.yaml#
+  - $ref: qcom,wcd93xx-common.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: qcom,wcd9390-codec
+      - items:
+          - const: qcom,wcd9395-codec
+          - const: qcom,wcd9390-codec
+
+  mode-switch:
+    description: Flag the port as possible handler of altmode switching
+    type: boolean
+
+  orientation-switch:
+    description: Flag the port as possible handler of orientation switching
+    type: boolean
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description:
+      A port node to link the WCD939x Codec node to USB MUX subsystems for the
+      purpose of handling altmode muxing and orientation switching to detect and
+      enable Audio Accessory Mode.
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    codec {
+        compatible = "qcom,wcd9390-codec";
+        reset-gpios = <&tlmm 32 IRQ_TYPE_NONE>;
+        #sound-dai-cells = <1>;
+        qcom,tx-device = <&wcd939x_tx>;
+        qcom,rx-device = <&wcd939x_rx>;
+        qcom,micbias1-microvolt = <1800000>;
+        qcom,micbias2-microvolt = <1800000>;
+        qcom,micbias3-microvolt = <1800000>;
+        qcom,micbias4-microvolt = <1800000>;
+        qcom,hphl-jack-type-normally-closed;
+        qcom,ground-jack-type-normally-closed;
+        qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 500000 500000 500000>;
+        qcom,mbhc-headphone-vthreshold-microvolt = <50000>;
+    };
+
+    /* ... */
+
+    soundwire@3210000 {
+        #address-cells = <2>;
+        #size-cells = <0>;
+        reg = <0x03210000 0x2000>;
+        wcd939x_rx: codec@0,4 {
+            compatible = "sdw20217010e00";
+            reg = <0 4>;
+            qcom,rx-port-mapping = <1 2 3 4 5 6>;
+        };
+    };
+
+    soundwire@3230000 {
+        #address-cells = <2>;
+        #size-cells = <0>;
+        reg = <0x03230000 0x2000>;
+        wcd938x_tx: codec@0,3 {
+            compatible = "sdw20217010e00";
+            reg = <0 3>;
+            qcom,tx-port-mapping = <2 3 4 5>;
+        };
+    };
+
+...

Documentation/devicetree/bindings/sound/qcom,wcd93xx-common.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wcd93xx-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common properties for Qualcomm WCD93xx Audio Codec
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+properties:
+  reset-gpios:
+    description: GPIO spec for reset line to use
+    maxItems: 1
+
+  vdd-buck-supply:
+    description: A reference to the 1.8V buck supply
+
+  vdd-rxtx-supply:
+    description: A reference to the 1.8V rx supply
+
+  vdd-io-supply:
+    description: A reference to the 1.8V I/O supply
+
+  vdd-mic-bias-supply:
+    description: A reference to the 3.8V mic bias supply
+
+  qcom,tx-device:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: A reference to Soundwire tx device phandle
+
+  qcom,rx-device:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: A reference to Soundwire rx device phandle
+
+  qcom,micbias1-microvolt:
+    description: micbias1 voltage
+    minimum: 1800000
+    maximum: 2850000
+
+  qcom,micbias2-microvolt:
+    description: micbias2 voltage
+    minimum: 1800000
+    maximum: 2850000
+
+  qcom,micbias3-microvolt:
+    description: micbias3 voltage
+    minimum: 1800000
+    maximum: 2850000
+
+  qcom,micbias4-microvolt:
+    description: micbias4 voltage
+    minimum: 1800000
+    maximum: 2850000
+
+  qcom,hphl-jack-type-normally-closed:
+    description: Indicates that HPHL jack switch type is normally closed
+    type: boolean
+
+  qcom,ground-jack-type-normally-closed:
+    description: Indicates that Headset Ground switch type is normally closed
+    type: boolean
+
+  qcom,mbhc-headset-vthreshold-microvolt:
+    description: Voltage threshold value for headset detection
+    minimum: 0
+    maximum: 2850000
+
+  qcom,mbhc-headphone-vthreshold-microvolt:
+    description: Voltage threshold value for headphone detection
+    minimum: 0
+    maximum: 2850000
+
+  qcom,mbhc-buttons-vthreshold-microvolt:
+    description:
+      Array of 8 Voltage threshold values corresponding to headset
+      button0 - button7
+    minItems: 8
+    maxItems: 8
+
+  '#sound-dai-cells':
+    const: 1
+
+required:
+  - reset-gpios
+  - qcom,tx-device
+  - qcom,rx-device
+  - qcom,micbias1-microvolt
+  - qcom,micbias2-microvolt
+  - qcom,micbias3-microvolt
+  - qcom,micbias4-microvolt
+  - "#sound-dai-cells"
+
+additionalProperties: true

sound/soc/codecs/Kconfig

@@ -276,6 +276,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_WCD9335
 	imply SND_SOC_WCD934X
 	imply SND_SOC_WCD938X_SDW
+	imply SND_SOC_WCD939X_SDW
 	imply SND_SOC_LPASS_MACRO_COMMON
 	imply SND_SOC_LPASS_RX_MACRO
 	imply SND_SOC_LPASS_TX_MACRO
@@ -2059,6 +2060,24 @@ config SND_SOC_WCD938X_SDW
 	  The WCD9380/9385 is a audio codec IC Integrated in
 	  Qualcomm SoCs like SM8250.
 
+config SND_SOC_WCD939X
+	depends on SND_SOC_WCD939X_SDW
+	tristate
+	depends on SOUNDWIRE || !SOUNDWIRE
+	depends on TYPEC || !TYPEC
+	select SND_SOC_WCD_CLASSH
+
+config SND_SOC_WCD939X_SDW
+	tristate "WCD9390/WCD9395 Codec - SDW"
+	select SND_SOC_WCD939X
+	select SND_SOC_WCD_MBHC
+	select REGMAP_IRQ
+	depends on SOUNDWIRE
+	select REGMAP_SOUNDWIRE
+	help
+	  The WCD9390/9395 is a audio codec IC Integrated in
+	  Qualcomm SoCs like SM8650.
+
 config SND_SOC_WL1273
 	tristate
 

sound/soc/codecs/Makefile

@@ -313,6 +313,8 @@ snd-soc-wcd9335-objs := wcd9335.o
 snd-soc-wcd934x-objs := wcd934x.o
 snd-soc-wcd938x-objs := wcd938x.o
 snd-soc-wcd938x-sdw-objs := wcd938x-sdw.o
+snd-soc-wcd939x-objs := wcd939x.o
+snd-soc-wcd939x-sdw-objs := wcd939x-sdw.o
 snd-soc-wl1273-objs := wl1273.o
 snd-soc-wm-adsp-objs := wm_adsp.o
 snd-soc-wm0010-objs := wm0010.o
@@ -703,6 +705,11 @@ ifdef CONFIG_SND_SOC_WCD938X_SDW
 # avoid link failure by forcing sdw code built-in when needed
 obj-$(CONFIG_SND_SOC_WCD938X) += snd-soc-wcd938x-sdw.o
 endif
+obj-$(CONFIG_SND_SOC_WCD939X)	+= snd-soc-wcd939x.o
+ifdef CONFIG_SND_SOC_WCD939X_SDW
+# avoid link failure by forcing sdw code built-in when needed
+obj-$(CONFIG_SND_SOC_WCD939X) += snd-soc-wcd939x-sdw.o
+endif
 obj-$(CONFIG_SND_SOC_WL1273)	+= snd-soc-wl1273.o
 obj-$(CONFIG_SND_SOC_WM0010)	+= snd-soc-wm0010.o
 obj-$(CONFIG_SND_SOC_WM1250_EV1) += snd-soc-wm1250-ev1.o

sound/soc/codecs/wcd-clsh-v2.h

@@ -47,6 +47,7 @@ enum wcd_codec_version {
 	/* New CLSH after this */
 	WCD937X  = 2,
 	WCD938X  = 3,
+	WCD939X  = 4,
 };
 struct wcd_clsh_ctrl;
 

sound/soc/codecs/wcd-mbhc-v2.c

@@ -16,6 +16,7 @@
 #define HS_DETECT_PLUG_TIME_MS		(3 * 1000)
 #define MBHC_BUTTON_PRESS_THRESHOLD_MIN	250
 #define GND_MIC_SWAP_THRESHOLD		4
+#define GND_MIC_USBC_SWAP_THRESHOLD	2
 #define WCD_FAKE_REMOVAL_MIN_PERIOD_MS	100
 #define HPHL_CROSS_CONN_THRESHOLD	100
 #define HS_VREF_MIN_VAL			1400
@@ -52,12 +53,15 @@ struct wcd_mbhc {
 	struct wcd_mbhc_field *fields;
 	/* Delayed work to report long button press */
 	struct delayed_work mbhc_btn_dwork;
+	/* Work to handle plug report */
+	struct work_struct mbhc_plug_detect_work;
 	/* Work to correct accessory type */
 	struct work_struct correct_plug_swch;
 	struct mutex lock;
 	int buttons_pressed;
 	u32 hph_status; /* track headhpone status */
 	u8 current_plug;
+	unsigned int swap_thr;
 	bool is_btn_press;
 	bool in_swch_irq_handler;
 	bool hs_detect_work_stop;
@@ -506,14 +510,13 @@ static void wcd_mbhc_adc_detect_plug_type(struct wcd_mbhc *mbhc)
 	}
 }
 
-static irqreturn_t wcd_mbhc_mech_plug_detect_irq(int irq, void *data)
+static void mbhc_plug_detect_fn(struct work_struct *work)
 {
-	struct snd_soc_component *component;
+	struct wcd_mbhc *mbhc = container_of(work, struct wcd_mbhc, mbhc_plug_detect_work);
+	struct snd_soc_component *component = mbhc->component;
 	enum snd_jack_types jack_type;
-	struct wcd_mbhc *mbhc = data;
 	bool detection_type;
 
-	component = mbhc->component;
 	mutex_lock(&mbhc->lock);
 
 	mbhc->in_swch_irq_handler = true;
@@ -576,9 +579,51 @@ static irqreturn_t wcd_mbhc_mech_plug_detect_irq(int irq, void *data)
 exit:
 	mbhc->in_swch_irq_handler = false;
 	mutex_unlock(&mbhc->lock);
+}
+
+static irqreturn_t wcd_mbhc_mech_plug_detect_irq(int irq, void *data)
+{
+	struct wcd_mbhc *mbhc = data;
+
+	if (!mbhc->cfg->typec_analog_mux)
+		schedule_work(&mbhc->mbhc_plug_detect_work);
+
 	return IRQ_HANDLED;
 }
 
+int wcd_mbhc_typec_report_unplug(struct wcd_mbhc *mbhc)
+{
+
+	if (!mbhc || !mbhc->cfg->typec_analog_mux)
+		return -EINVAL;
+
+	if (mbhc->mbhc_cb->clk_setup)
+		mbhc->mbhc_cb->clk_setup(mbhc->component, false);
+
+	wcd_mbhc_write_field(mbhc, WCD_MBHC_L_DET_EN, 0);
+	wcd_mbhc_write_field(mbhc, WCD_MBHC_MECH_DETECTION_TYPE, 0);
+
+	schedule_work(&mbhc->mbhc_plug_detect_work);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wcd_mbhc_typec_report_unplug);
+
+int wcd_mbhc_typec_report_plug(struct wcd_mbhc *mbhc)
+{
+	if (!mbhc || !mbhc->cfg->typec_analog_mux)
+		return -EINVAL;
+
+	if (mbhc->mbhc_cb->clk_setup)
+		mbhc->mbhc_cb->clk_setup(mbhc->component, true);
+	wcd_mbhc_write_field(mbhc, WCD_MBHC_L_DET_EN, 1);
+
+	schedule_work(&mbhc->mbhc_plug_detect_work);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wcd_mbhc_typec_report_plug);
+
 static int wcd_mbhc_get_button_mask(struct wcd_mbhc *mbhc)
 {
 	int mask = 0;
@@ -725,14 +770,23 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
 
 	mutex_lock(&mbhc->lock);
 
-	/* enable HS detection */
+	if (mbhc->cfg->typec_analog_mux)
+		mbhc->swap_thr = GND_MIC_USBC_SWAP_THRESHOLD;
+	else
+		mbhc->swap_thr = GND_MIC_SWAP_THRESHOLD;
+
+	/* setup HS detection */
 	if (mbhc->mbhc_cb->hph_pull_up_control_v2)
 		mbhc->mbhc_cb->hph_pull_up_control_v2(component,
-						      HS_PULLUP_I_DEFAULT);
+				mbhc->cfg->typec_analog_mux ?
+					HS_PULLUP_I_OFF : HS_PULLUP_I_DEFAULT);
 	else if (mbhc->mbhc_cb->hph_pull_up_control)
-		mbhc->mbhc_cb->hph_pull_up_control(component, I_DEFAULT);
+		mbhc->mbhc_cb->hph_pull_up_control(component,
+				mbhc->cfg->typec_analog_mux ?
+					I_OFF : I_DEFAULT);
 	else
-		wcd_mbhc_write_field(mbhc, WCD_MBHC_HS_L_DET_PULL_UP_CTRL, 3);
+		wcd_mbhc_write_field(mbhc, WCD_MBHC_HS_L_DET_PULL_UP_CTRL,
+				mbhc->cfg->typec_analog_mux ? 0 : 3);
 
 	wcd_mbhc_write_field(mbhc, WCD_MBHC_HPHL_PLUG_TYPE, mbhc->cfg->hphl_swh);
 	wcd_mbhc_write_field(mbhc, WCD_MBHC_GND_PLUG_TYPE, mbhc->cfg->gnd_swh);
@@ -741,10 +795,18 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
 		mbhc->mbhc_cb->mbhc_gnd_det_ctrl(component, true);
 	wcd_mbhc_write_field(mbhc, WCD_MBHC_HS_L_DET_PULL_UP_COMP_CTRL, 1);
 
-	wcd_mbhc_write_field(mbhc, WCD_MBHC_L_DET_EN, 1);
+	/* Plug detect is triggered manually if analog goes through USBCC */
+	if (mbhc->cfg->typec_analog_mux)
+		wcd_mbhc_write_field(mbhc, WCD_MBHC_L_DET_EN, 0);
+	else
+		wcd_mbhc_write_field(mbhc, WCD_MBHC_L_DET_EN, 1);
 
-	/* Insertion debounce set to 96ms */
-	wcd_mbhc_write_field(mbhc, WCD_MBHC_INSREM_DBNC, 6);
+	if (mbhc->cfg->typec_analog_mux)
+		/* Insertion debounce set to 48ms */
+		wcd_mbhc_write_field(mbhc, WCD_MBHC_INSREM_DBNC, 4);
+	else
+		/* Insertion debounce set to 96ms */
+		wcd_mbhc_write_field(mbhc, WCD_MBHC_INSREM_DBNC, 6);
 
 	/* Button Debounce set to 16ms */
 	wcd_mbhc_write_field(mbhc, WCD_MBHC_BTN_DBNC, 2);
@@ -753,7 +815,8 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
 	mbhc->mbhc_cb->mbhc_bias(component, true);
 	/* enable MBHC clock */
 	if (mbhc->mbhc_cb->clk_setup)
-		mbhc->mbhc_cb->clk_setup(component, true);
+		mbhc->mbhc_cb->clk_setup(component,
+				mbhc->cfg->typec_analog_mux ? false : true);
 
 	/* program HS_VREF value */
 	wcd_program_hs_vref(mbhc);
@@ -1115,7 +1178,7 @@ static void wcd_correct_swch_plug(struct work_struct *work)
 	do {
 		cross_conn = wcd_check_cross_conn(mbhc);
 		try++;
-	} while (try < GND_MIC_SWAP_THRESHOLD);
+	} while (try < mbhc->swap_thr);
 
 	if (cross_conn > 0) {
 		plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;
@@ -1183,7 +1246,7 @@ static void wcd_correct_swch_plug(struct work_struct *work)
 			cross_conn = wcd_check_cross_conn(mbhc);
 			if (cross_conn > 0) { /* cross-connection */
 				pt_gnd_mic_swap_cnt++;
-				if (pt_gnd_mic_swap_cnt < GND_MIC_SWAP_THRESHOLD)
+				if (pt_gnd_mic_swap_cnt < mbhc->swap_thr)
 					continue;
 				else
 					plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;
@@ -1194,7 +1257,7 @@ static void wcd_correct_swch_plug(struct work_struct *work)
 			} else /* Error if (cross_conn < 0) */
 				continue;
 
-			if (pt_gnd_mic_swap_cnt == GND_MIC_SWAP_THRESHOLD) {
+			if (pt_gnd_mic_swap_cnt == mbhc->swap_thr) {
 				/* US_EU gpio present, flip switch */
 				if (mbhc->cfg->swap_gnd_mic) {
 					if (mbhc->cfg->swap_gnd_mic(component, true))
@@ -1473,6 +1536,7 @@ struct wcd_mbhc *wcd_mbhc_init(struct snd_soc_component *component,
 	mutex_init(&mbhc->lock);
 
 	INIT_WORK(&mbhc->correct_plug_swch, wcd_correct_swch_plug);
+	INIT_WORK(&mbhc->mbhc_plug_detect_work, mbhc_plug_detect_fn);
 
 	ret = request_threaded_irq(mbhc->intr_ids->mbhc_sw_intr, NULL,
 					wcd_mbhc_mech_plug_detect_irq,
@@ -1562,6 +1626,7 @@ void wcd_mbhc_deinit(struct wcd_mbhc *mbhc)
 
 	mutex_lock(&mbhc->lock);
 	wcd_cancel_hs_detect_plug(mbhc,	&mbhc->correct_plug_swch);
+	cancel_work_sync(&mbhc->mbhc_plug_detect_work);
 	mutex_unlock(&mbhc->lock);
 
 	kfree(mbhc);

sound/soc/codecs/wcd-mbhc-v2.h

@@ -193,6 +193,7 @@ struct wcd_mbhc_config {
 	int v_hs_max;
 	int num_btn;
 	bool mono_stero_detection;
+	bool typec_analog_mux;
 	bool (*swap_gnd_mic)(struct snd_soc_component *component, bool active);
 	bool hs_ext_micbias;
 	bool gnd_det_en;
@@ -273,6 +274,8 @@ int wcd_mbhc_start(struct wcd_mbhc *mbhc, struct wcd_mbhc_config *mbhc_cfg,
 void wcd_mbhc_stop(struct wcd_mbhc *mbhc);
 void wcd_mbhc_set_hph_type(struct wcd_mbhc *mbhc, int hph_type);
 int wcd_mbhc_get_hph_type(struct wcd_mbhc *mbhc);
+int wcd_mbhc_typec_report_plug(struct wcd_mbhc *mbhc);
+int wcd_mbhc_typec_report_unplug(struct wcd_mbhc *mbhc);
 struct wcd_mbhc *wcd_mbhc_init(struct snd_soc_component *component,
 		      const struct wcd_mbhc_cb *mbhc_cb,
 		      const struct wcd_mbhc_intr *mbhc_cdc_intr_ids,