linux_kernel/drivers/extcon/Kconfig

menuconfig EXTCON
	tristate "External Connector Class (extcon) support"
	help
	  Say Y here to enable external connector class (extcon) support.
	  This allows monitoring external connectors by userspace
	  via sysfs and uevent and supports external connectors with
	  multiple states; i.e., an extcon that may have multiple
	  cables attached. For example, an external connector of a device
	  may be used to connect an HDMI cable and a AC adaptor, and to
	  host USB ports. Many of 30-pin connectors including PDMI are
	  also good examples.

if EXTCON

comment "Extcon Device Drivers"

config EXTCON_ADC_JACK
	tristate "ADC Jack extcon support"
	depends on IIO
	help
	  Say Y here to enable extcon device driver based on ADC values.

config EXTCON_ARIZONA
	tristate "Wolfson Arizona EXTCON support"
	depends on MFD_ARIZONA && INPUT && SND_SOC
	help
	  Say Y here to enable support for external accessory detection
	  with Wolfson Arizona devices. These are audio CODECs with
	  advanced audio accessory detection support.

config EXTCON_AXP288
	tristate "X-Power AXP288 EXTCON support"
	depends on MFD_AXP20X && USB_PHY
	help
	  Say Y here to enable support for USB peripheral detection
	  and USB MUX switching by X-Power AXP288 PMIC.

config EXTCON_GPIO
	tristate "GPIO extcon support"
	depends on GPIOLIB || COMPILE_TEST
	help
	  Say Y here to enable GPIO based extcon support. Note that GPIO
	  extcon supports single state per extcon instance.

config EXTCON_INTEL_INT3496
	tristate "Intel INT3496 ACPI device extcon driver"
	depends on GPIOLIB && ACPI && (X86 || COMPILE_TEST)
	help
	  Say Y here to enable extcon support for USB OTG ports controlled by
	  an Intel INT3496 ACPI device.

	  This ACPI device is typically found on Intel Baytrail or Cherrytrail
	  based tablets, or other Baytrail / Cherrytrail devices.

config EXTCON_MAX14577
	tristate "Maxim MAX14577/77836 EXTCON Support"
	depends on MFD_MAX14577
	select IRQ_DOMAIN
	select REGMAP_I2C
	help
	  If you say yes here you get support for the MUIC device of
	  Maxim MAX14577/77836. The MAX14577/77836 MUIC is a USB port accessory
	  detector and switch.

config EXTCON_MAX3355
	tristate "Maxim MAX3355 USB OTG EXTCON Support"
	depends on GPIOLIB || COMPILE_TEST
	help
	  If you say yes here you get support for the USB OTG role detection by
	  MAX3355. The MAX3355 chip integrates a charge pump and comparators to
	  enable a system with an integrated USB OTG dual-role transceiver to
	  function as an USB OTG dual-role device.

config EXTCON_MAX77693
	tristate "Maxim MAX77693 EXTCON Support"
	depends on MFD_MAX77693 && INPUT
	select IRQ_DOMAIN
	select REGMAP_I2C
	help
	  If you say yes here you get support for the MUIC device of
	  Maxim MAX77693 PMIC. The MAX77693 MUIC is a USB port accessory
	  detector and switch.

config EXTCON_MAX77843
	tristate "Maxim MAX77843 EXTCON Support"
	depends on MFD_MAX77843
	select IRQ_DOMAIN
	select REGMAP_I2C
	help
	  If you say yes here you get support for the MUIC device of
	  Maxim MAX77843. The MAX77843 MUIC is a USB port accessory
	  detector add switch.

config EXTCON_MAX8997
	tristate "Maxim MAX8997 EXTCON Support"
	depends on MFD_MAX8997 && IRQ_DOMAIN
	help
	  If you say yes here you get support for the MUIC device of
	  Maxim MAX8997 PMIC. The MAX8997 MUIC is a USB port accessory
	  detector and switch.

config EXTCON_PALMAS
	tristate "Palmas USB EXTCON support"
	depends on MFD_PALMAS
	help
	  Say Y here to enable support for USB peripheral and USB host
	  detection by palmas usb.

config EXTCON_QCOM_SPMI_MISC
	tristate "Qualcomm USB extcon support"
	help
	  Say Y here to enable SPMI PMIC based USB cable detection
	  support on Qualcomm PMICs such as PM8941.

config EXTCON_RT8973A
	tristate "Richtek RT8973A EXTCON support"
	depends on I2C
	select IRQ_DOMAIN
	select REGMAP_I2C
	select REGMAP_IRQ
	help
	  If you say yes here you get support for the MUIC device of
	  Richtek RT8973A. The RT8973A is a USB port accessory detector
	  and switch that is optimized to protect low voltage system
	  from abnormal high input voltage (up to 28V).

config EXTCON_SM5502
	tristate "Silicon Mitus SM5502 EXTCON support"
	depends on I2C
	select IRQ_DOMAIN
	select REGMAP_I2C
	select REGMAP_IRQ
	help
	  If you say yes here you get support for the MUIC device of
	  Silicon Mitus SM5502. The SM5502 is a USB port accessory
	  detector and switch.

config EXTCON_USB_GPIO
	tristate "USB GPIO extcon support"
	depends on GPIOLIB || COMPILE_TEST
	help
	  Say Y here to enable GPIO based USB cable detection extcon support.
	  Used typically if GPIO is used for USB ID pin detection.

endif