[2/2] extcon: max88743: Add support for SmartDock accessory

Message ID 20171018092802.25390-3-m.szyprowski@samsung.com
State New
Headers show
Series
  • [1/2] extcon: max88743: Add OTG power control to the MUIC driver
Related show

Commit Message

Marek Szyprowski Oct. 18, 2017, 9:28 a.m.
SmartDock uses ADC_RESERVED_ACC_3 (0x10) ADC ID type and provides following
features:
1. USB host with embedded USB hub (2-4 ports) for mice, keyboard, etc,
2. MHL for video output,
3. charging.

Tested with Unitek Y-2165 MHL+OTG Hub Smart Phone Dock.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

---
 drivers/extcon/extcon-max77843.c     | 77 +++++++++++++++++++++++++++++-------
 include/linux/mfd/max77843-private.h |  2 +
 2 files changed, 65 insertions(+), 14 deletions(-)

-- 
2.14.2

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Comments

Chanwoo Choi Oct. 18, 2017, 9:45 a.m. | #1
Hi Marek,

Also, this patch need to fix the patch subject as following:
- max88743 -> max77843

If you fix the subject, feel free to add my acked-tag.
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>


After finishing the review from MFD maintainer, I'll merge them.

Regards,
Chanwoo Choi

On 2017년 10월 18일 18:28, Marek Szyprowski wrote:
> SmartDock uses ADC_RESERVED_ACC_3 (0x10) ADC ID type and provides following

> features:

> 1. USB host with embedded USB hub (2-4 ports) for mice, keyboard, etc,

> 2. MHL for video output,

> 3. charging.

> 

> Tested with Unitek Y-2165 MHL+OTG Hub Smart Phone Dock.

> 

> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

> ---

>  drivers/extcon/extcon-max77843.c     | 77 +++++++++++++++++++++++++++++-------

>  include/linux/mfd/max77843-private.h |  2 +

>  2 files changed, 65 insertions(+), 14 deletions(-)

> 

> diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c

> index 217c743405f8..cc28d2622ae7 100644

> --- a/drivers/extcon/extcon-max77843.c

> +++ b/drivers/extcon/extcon-max77843.c

> @@ -80,7 +80,7 @@ enum max77843_muic_accessory_type {

>  	MAX77843_MUIC_ADC_REMOTE_S12_BUTTON,

>  	MAX77843_MUIC_ADC_RESERVED_ACC_1,

>  	MAX77843_MUIC_ADC_RESERVED_ACC_2,

> -	MAX77843_MUIC_ADC_RESERVED_ACC_3,

> +	MAX77843_MUIC_ADC_RESERVED_ACC_3, /* SmartDock */

>  	MAX77843_MUIC_ADC_RESERVED_ACC_4,

>  	MAX77843_MUIC_ADC_RESERVED_ACC_5,

>  	MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2,

> @@ -119,6 +119,7 @@ enum max77843_muic_charger_type {

>  	MAX77843_MUIC_CHG_SPECIAL_BIAS,

>  	MAX77843_MUIC_CHG_RESERVED,

>  	MAX77843_MUIC_CHG_GND,

> +	MAX77843_MUIC_CHG_DOCK,

>  };

>  

>  static const unsigned int max77843_extcon_cable[] = {

> @@ -130,6 +131,7 @@ static const unsigned int max77843_extcon_cable[] = {

>  	EXTCON_CHG_USB_FAST,

>  	EXTCON_CHG_USB_SLOW,

>  	EXTCON_DISP_MHL,

> +	EXTCON_DOCK,

>  	EXTCON_JIG,

>  	EXTCON_NONE,

>  };

> @@ -200,7 +202,7 @@ static const struct regmap_irq_chip max77843_muic_irq_chip = {

>  };

>  

>  static int max77843_muic_set_path(struct max77843_muic_info *info,

> -		u8 val, bool attached)

> +		u8 val, bool attached, bool nobccomp)

>  {

>  	struct max77693_dev *max77843 = info->max77843;

>  	int ret = 0;

> @@ -210,10 +212,16 @@ static int max77843_muic_set_path(struct max77843_muic_info *info,

>  		ctrl1 = val;

>  	else

>  		ctrl1 = MAX77843_MUIC_CONTROL1_SW_OPEN;

> +	if (nobccomp) {

> +		/* Disable BC1.2 protocol and force manual switch control */

> +		ctrl1 |= MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK;

> +	}

>  

>  	ret = regmap_update_bits(max77843->regmap_muic,

>  			MAX77843_MUIC_REG_CONTROL1,

> -			MAX77843_MUIC_CONTROL1_COM_SW, ctrl1);

> +			MAX77843_MUIC_CONTROL1_COM_SW |

> +				MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK,

> +			ctrl1);

>  	if (ret < 0) {

>  		dev_err(info->dev, "Cannot switch MUIC port\n");

>  		return ret;

> @@ -303,6 +311,19 @@ static int max77843_muic_get_cable_type(struct max77843_muic_info *info,

>  			break;

>  		}

>  

> +		if (adc == MAX77843_MUIC_ADC_RESERVED_ACC_3) { /* SmartDock */

> +			if (chg_type == MAX77843_MUIC_CHG_NONE) {

> +				*attached = false;

> +				cable_type = info->prev_chg_type;

> +				info->prev_chg_type = MAX77843_MUIC_CHG_NONE;

> +			} else {

> +				*attached = true;

> +				cable_type = MAX77843_MUIC_CHG_DOCK;

> +				info->prev_chg_type = MAX77843_MUIC_CHG_DOCK;

> +			}

> +			break;

> +		}

> +

>  		if (chg_type == MAX77843_MUIC_CHG_NONE) {

>  			*attached = false;

>  			cable_type = info->prev_chg_type;

> @@ -365,7 +386,7 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_GND_USB_HOST_VB:

>  		ret = max77843_muic_set_path(info,

>  					     MAX77843_MUIC_CONTROL1_SW_USB,

> -					     attached);

> +					     attached, false);

>  		if (ret < 0)

>  			return ret;

>  

> @@ -376,7 +397,7 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_GND_MHL:

>  		ret = max77843_muic_set_path(info,

>  					     MAX77843_MUIC_CONTROL1_SW_OPEN,

> -					     attached);

> +					     attached, false);

>  		if (ret < 0)

>  			return ret;

>  

> @@ -412,7 +433,7 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info,

>  		return -EINVAL;

>  	}

>  

> -	ret = max77843_muic_set_path(info, path, attached);

> +	ret = max77843_muic_set_path(info, path, attached, false);

>  	if (ret < 0)

>  		return ret;

>  

> @@ -421,6 +442,26 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info,

>  	return 0;

>  }

>  

> +static int max77843_muic_dock_handler(struct max77843_muic_info *info,

> +		bool attached)

> +{

> +	int ret;

> +

> +	dev_dbg(info->dev, "external connector is %s (adc: 0x10)\n",

> +			attached ? "attached" : "detached");

> +

> +	ret = max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_USB,

> +				     attached, attached);

> +	if (ret < 0)

> +		return ret;

> +

> +	extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached);

> +	extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached);

> +	extcon_set_state_sync(info->edev, EXTCON_DOCK, attached);

> +

> +	return 0;

> +}

> +

>  static int max77843_muic_adc_handler(struct max77843_muic_info *info)

>  {

>  	int ret, cable_type;

> @@ -435,6 +476,11 @@ static int max77843_muic_adc_handler(struct max77843_muic_info *info)

>  		info->prev_cable_type);

>  

>  	switch (cable_type) {

> +	case MAX77843_MUIC_ADC_RESERVED_ACC_3: /* SmartDock */

> +		ret = max77843_muic_dock_handler(info, attached);

> +		if (ret < 0)

> +			return ret;

> +		break;

>  	case MAX77843_MUIC_ADC_GROUND:

>  		ret = max77843_muic_adc_gnd_handler(info);

>  		if (ret < 0)

> @@ -462,7 +508,6 @@ static int max77843_muic_adc_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_ADC_REMOTE_S12_BUTTON:

>  	case MAX77843_MUIC_ADC_RESERVED_ACC_1:

>  	case MAX77843_MUIC_ADC_RESERVED_ACC_2:

> -	case MAX77843_MUIC_ADC_RESERVED_ACC_3:

>  	case MAX77843_MUIC_ADC_RESERVED_ACC_4:

>  	case MAX77843_MUIC_ADC_RESERVED_ACC_5:

>  	case MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2:

> @@ -506,7 +551,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_CHG_USB:

>  		ret = max77843_muic_set_path(info,

>  					     MAX77843_MUIC_CONTROL1_SW_USB,

> -					     attached);

> +					     attached, false);

>  		if (ret < 0)

>  			return ret;

>  

> @@ -517,7 +562,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_CHG_DOWNSTREAM:

>  		ret = max77843_muic_set_path(info,

>  					     MAX77843_MUIC_CONTROL1_SW_OPEN,

> -					     attached);

> +					     attached, false);

>  		if (ret < 0)

>  			return ret;

>  

> @@ -527,7 +572,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_CHG_DEDICATED:

>  		ret = max77843_muic_set_path(info,

>  					     MAX77843_MUIC_CONTROL1_SW_OPEN,

> -					     attached);

> +					     attached, false);

>  		if (ret < 0)

>  			return ret;

>  

> @@ -537,7 +582,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_CHG_SPECIAL_500MA:

>  		ret = max77843_muic_set_path(info,

>  					     MAX77843_MUIC_CONTROL1_SW_OPEN,

> -					     attached);

> +					     attached, false);

>  		if (ret < 0)

>  			return ret;

>  

> @@ -547,7 +592,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)

>  	case MAX77843_MUIC_CHG_SPECIAL_1A:

>  		ret = max77843_muic_set_path(info,

>  					     MAX77843_MUIC_CONTROL1_SW_OPEN,

> -					     attached);

> +					     attached, false);

>  		if (ret < 0)

>  			return ret;

>  

> @@ -566,6 +611,9 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)

>  			extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,

>  						false);

>  		break;

> +	case MAX77843_MUIC_CHG_DOCK:

> +		extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, attached);

> +		break;

>  	case MAX77843_MUIC_CHG_NONE:

>  		break;

>  	default:

> @@ -574,7 +622,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)

>  			attached ? "attached" : "detached", chg_type);

>  

>  		max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_OPEN,

> -				       attached);

> +				       attached, false);

>  		return -EINVAL;

>  	}

>  

> @@ -814,7 +862,8 @@ static int max77843_muic_probe(struct platform_device *pdev)

>  	max77843_muic_set_debounce_time(info, MAX77843_DEBOUNCE_TIME_25MS);

>  

>  	/* Set initial path for UART */

> -	max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true);

> +	max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true,

> +			       false);

>  

>  	/* Check revision number of MUIC device */

>  	ret = regmap_read(max77843->regmap_muic, MAX77843_MUIC_REG_ID, &id);

> diff --git a/include/linux/mfd/max77843-private.h b/include/linux/mfd/max77843-private.h

> index 0223cd5941c8..b8908bf8d315 100644

> --- a/include/linux/mfd/max77843-private.h

> +++ b/include/linux/mfd/max77843-private.h

> @@ -350,6 +350,7 @@ enum max77843_irq_muic {

>  /* MAX77843 CONTROL register */

>  #define MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT	0

>  #define MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT	3

> +#define MAX77843_MUIC_CONTROL1_NOBCCOMP_SHIFT	6

>  #define MAX77843_MUIC_CONTROL1_IDBEN_SHIFT	7

>  #define MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT	0

>  #define MAX77843_MUIC_CONTROL2_ADCEN_SHIFT	1

> @@ -366,6 +367,7 @@ enum max77843_irq_muic {

>  #define MAX77843_MUIC_CONTROL1_COMP1SW_MASK	(0x7 << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT)

>  #define MAX77843_MUIC_CONTROL1_COMP2SW_MASK	(0x7 << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)

>  #define MAX77843_MUIC_CONTROL1_IDBEN_MASK	BIT(MAX77843_MUIC_CONTROL1_IDBEN_SHIFT)

> +#define MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK	BIT(MAX77843_MUIC_CONTROL1_NOBCCOMP_SHIFT)

>  #define MAX77843_MUIC_CONTROL2_LOWPWR_MASK	BIT(MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT)

>  #define MAX77843_MUIC_CONTROL2_ADCEN_MASK	BIT(MAX77843_MUIC_CONTROL2_ADCEN_SHIFT)

>  #define MAX77843_MUIC_CONTROL2_CPEN_MASK	BIT(MAX77843_MUIC_CONTROL2_CPEN_SHIFT)

> 



-- 
Best Regards,
Chanwoo Choi
Samsung Electronics
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Patch

diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
index 217c743405f8..cc28d2622ae7 100644
--- a/drivers/extcon/extcon-max77843.c
+++ b/drivers/extcon/extcon-max77843.c
@@ -80,7 +80,7 @@  enum max77843_muic_accessory_type {
 	MAX77843_MUIC_ADC_REMOTE_S12_BUTTON,
 	MAX77843_MUIC_ADC_RESERVED_ACC_1,
 	MAX77843_MUIC_ADC_RESERVED_ACC_2,
-	MAX77843_MUIC_ADC_RESERVED_ACC_3,
+	MAX77843_MUIC_ADC_RESERVED_ACC_3, /* SmartDock */
 	MAX77843_MUIC_ADC_RESERVED_ACC_4,
 	MAX77843_MUIC_ADC_RESERVED_ACC_5,
 	MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2,
@@ -119,6 +119,7 @@  enum max77843_muic_charger_type {
 	MAX77843_MUIC_CHG_SPECIAL_BIAS,
 	MAX77843_MUIC_CHG_RESERVED,
 	MAX77843_MUIC_CHG_GND,
+	MAX77843_MUIC_CHG_DOCK,
 };
 
 static const unsigned int max77843_extcon_cable[] = {
@@ -130,6 +131,7 @@  static const unsigned int max77843_extcon_cable[] = {
 	EXTCON_CHG_USB_FAST,
 	EXTCON_CHG_USB_SLOW,
 	EXTCON_DISP_MHL,
+	EXTCON_DOCK,
 	EXTCON_JIG,
 	EXTCON_NONE,
 };
@@ -200,7 +202,7 @@  static const struct regmap_irq_chip max77843_muic_irq_chip = {
 };
 
 static int max77843_muic_set_path(struct max77843_muic_info *info,
-		u8 val, bool attached)
+		u8 val, bool attached, bool nobccomp)
 {
 	struct max77693_dev *max77843 = info->max77843;
 	int ret = 0;
@@ -210,10 +212,16 @@  static int max77843_muic_set_path(struct max77843_muic_info *info,
 		ctrl1 = val;
 	else
 		ctrl1 = MAX77843_MUIC_CONTROL1_SW_OPEN;
+	if (nobccomp) {
+		/* Disable BC1.2 protocol and force manual switch control */
+		ctrl1 |= MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK;
+	}
 
 	ret = regmap_update_bits(max77843->regmap_muic,
 			MAX77843_MUIC_REG_CONTROL1,
-			MAX77843_MUIC_CONTROL1_COM_SW, ctrl1);
+			MAX77843_MUIC_CONTROL1_COM_SW |
+				MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK,
+			ctrl1);
 	if (ret < 0) {
 		dev_err(info->dev, "Cannot switch MUIC port\n");
 		return ret;
@@ -303,6 +311,19 @@  static int max77843_muic_get_cable_type(struct max77843_muic_info *info,
 			break;
 		}
 
+		if (adc == MAX77843_MUIC_ADC_RESERVED_ACC_3) { /* SmartDock */
+			if (chg_type == MAX77843_MUIC_CHG_NONE) {
+				*attached = false;
+				cable_type = info->prev_chg_type;
+				info->prev_chg_type = MAX77843_MUIC_CHG_NONE;
+			} else {
+				*attached = true;
+				cable_type = MAX77843_MUIC_CHG_DOCK;
+				info->prev_chg_type = MAX77843_MUIC_CHG_DOCK;
+			}
+			break;
+		}
+
 		if (chg_type == MAX77843_MUIC_CHG_NONE) {
 			*attached = false;
 			cable_type = info->prev_chg_type;
@@ -365,7 +386,7 @@  static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_GND_USB_HOST_VB:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_USB,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -376,7 +397,7 @@  static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_GND_MHL:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -412,7 +433,7 @@  static int max77843_muic_jig_handler(struct max77843_muic_info *info,
 		return -EINVAL;
 	}
 
-	ret = max77843_muic_set_path(info, path, attached);
+	ret = max77843_muic_set_path(info, path, attached, false);
 	if (ret < 0)
 		return ret;
 
@@ -421,6 +442,26 @@  static int max77843_muic_jig_handler(struct max77843_muic_info *info,
 	return 0;
 }
 
+static int max77843_muic_dock_handler(struct max77843_muic_info *info,
+		bool attached)
+{
+	int ret;
+
+	dev_dbg(info->dev, "external connector is %s (adc: 0x10)\n",
+			attached ? "attached" : "detached");
+
+	ret = max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_USB,
+				     attached, attached);
+	if (ret < 0)
+		return ret;
+
+	extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached);
+	extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached);
+	extcon_set_state_sync(info->edev, EXTCON_DOCK, attached);
+
+	return 0;
+}
+
 static int max77843_muic_adc_handler(struct max77843_muic_info *info)
 {
 	int ret, cable_type;
@@ -435,6 +476,11 @@  static int max77843_muic_adc_handler(struct max77843_muic_info *info)
 		info->prev_cable_type);
 
 	switch (cable_type) {
+	case MAX77843_MUIC_ADC_RESERVED_ACC_3: /* SmartDock */
+		ret = max77843_muic_dock_handler(info, attached);
+		if (ret < 0)
+			return ret;
+		break;
 	case MAX77843_MUIC_ADC_GROUND:
 		ret = max77843_muic_adc_gnd_handler(info);
 		if (ret < 0)
@@ -462,7 +508,6 @@  static int max77843_muic_adc_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_ADC_REMOTE_S12_BUTTON:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_1:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_2:
-	case MAX77843_MUIC_ADC_RESERVED_ACC_3:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_4:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_5:
 	case MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2:
@@ -506,7 +551,7 @@  static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_USB:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_USB,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -517,7 +562,7 @@  static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_DOWNSTREAM:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -527,7 +572,7 @@  static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_DEDICATED:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -537,7 +582,7 @@  static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_SPECIAL_500MA:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -547,7 +592,7 @@  static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_SPECIAL_1A:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -566,6 +611,9 @@  static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 			extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
 						false);
 		break;
+	case MAX77843_MUIC_CHG_DOCK:
+		extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, attached);
+		break;
 	case MAX77843_MUIC_CHG_NONE:
 		break;
 	default:
@@ -574,7 +622,7 @@  static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 			attached ? "attached" : "detached", chg_type);
 
 		max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_OPEN,
-				       attached);
+				       attached, false);
 		return -EINVAL;
 	}
 
@@ -814,7 +862,8 @@  static int max77843_muic_probe(struct platform_device *pdev)
 	max77843_muic_set_debounce_time(info, MAX77843_DEBOUNCE_TIME_25MS);
 
 	/* Set initial path for UART */
-	max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true);
+	max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true,
+			       false);
 
 	/* Check revision number of MUIC device */
 	ret = regmap_read(max77843->regmap_muic, MAX77843_MUIC_REG_ID, &id);
diff --git a/include/linux/mfd/max77843-private.h b/include/linux/mfd/max77843-private.h
index 0223cd5941c8..b8908bf8d315 100644
--- a/include/linux/mfd/max77843-private.h
+++ b/include/linux/mfd/max77843-private.h
@@ -350,6 +350,7 @@  enum max77843_irq_muic {
 /* MAX77843 CONTROL register */
 #define MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT	0
 #define MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT	3
+#define MAX77843_MUIC_CONTROL1_NOBCCOMP_SHIFT	6
 #define MAX77843_MUIC_CONTROL1_IDBEN_SHIFT	7
 #define MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT	0
 #define MAX77843_MUIC_CONTROL2_ADCEN_SHIFT	1
@@ -366,6 +367,7 @@  enum max77843_irq_muic {
 #define MAX77843_MUIC_CONTROL1_COMP1SW_MASK	(0x7 << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT)
 #define MAX77843_MUIC_CONTROL1_COMP2SW_MASK	(0x7 << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)
 #define MAX77843_MUIC_CONTROL1_IDBEN_MASK	BIT(MAX77843_MUIC_CONTROL1_IDBEN_SHIFT)
+#define MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK	BIT(MAX77843_MUIC_CONTROL1_NOBCCOMP_SHIFT)
 #define MAX77843_MUIC_CONTROL2_LOWPWR_MASK	BIT(MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT)
 #define MAX77843_MUIC_CONTROL2_ADCEN_MASK	BIT(MAX77843_MUIC_CONTROL2_ADCEN_SHIFT)
 #define MAX77843_MUIC_CONTROL2_CPEN_MASK	BIT(MAX77843_MUIC_CONTROL2_CPEN_SHIFT)