linux/drivers/extcon/Kconfig
Sergei Shtylyov 08a0a4f987 extcon: add Maxim MAX3355 driver
Maxim Integrated MAX3355E 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. In addition to sensing/controlling
Vbus, the chip also passes thru the ID signal from the USB OTG connector.
On some Renesas boards, this signal is just fed into the SoC thru a GPIO
pin -- there's no real OTG controller, only host and gadget USB controllers
sharing the same USB bus; however, we'd like to allow host or gadget
drivers to be loaded depending on the cable type, hence the need for the
MAX3355 extcon driver. The Vbus status signals are also wired to GPIOs
(however, we aren't currently interested in them), the OFFVBUS# signal is
controlled by the host controllers, there's also the SHDN# signal wired to
a GPIO, it should be driven high for the normal operation.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
[cw00.choi: Add the GPIOLIB dependency]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-12-21 11:44:00 +09:00

130 lines
4.0 KiB
Plaintext

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_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_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