mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
4602f3bff2
Due to the requirement of usb-connector.txt binding, the old way using extcon to support USB Dual-Role switch is now deprecated when use Type-B connector. This patch introduces a USB GPIO based connection detection driver, used to support Type-B connector which typically uses an input GPIO to detect USB ID pin, and try to replace the function provided by the extcon-usb-gpio driver Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Tested-by: Nagarjuna Kristam <nkristam@nvidia.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/1567070558-29417-11-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
config USB_COMMON
|
|
tristate
|
|
|
|
|
|
config USB_LED_TRIG
|
|
bool "USB LED Triggers"
|
|
depends on LEDS_CLASS && LEDS_TRIGGERS
|
|
select USB_COMMON
|
|
help
|
|
This option adds LED triggers for USB host and/or gadget activity.
|
|
|
|
Say Y here if you are working on a system with led-class supported
|
|
LEDs and you want to use them as activity indicators for USB host or
|
|
gadget.
|
|
|
|
config USB_ULPI_BUS
|
|
tristate "USB ULPI PHY interface support"
|
|
select USB_COMMON
|
|
help
|
|
UTMI+ Low Pin Interface (ULPI) is specification for a commonly used
|
|
USB 2.0 PHY interface. The ULPI specification defines a standard set
|
|
of registers that can be used to detect the vendor and product which
|
|
allows ULPI to be handled as a bus. This module is the driver for that
|
|
bus.
|
|
|
|
The ULPI interfaces (the buses) are registered by the drivers for USB
|
|
controllers which support ULPI register access and have ULPI PHY
|
|
attached to them. The ULPI PHY drivers themselves are normal PHY
|
|
drivers.
|
|
|
|
ULPI PHYs provide often functions such as ADP sensing/probing (OTG
|
|
protocol) and USB charger detection.
|
|
|
|
To compile this driver as a module, choose M here: the module will
|
|
be called ulpi.
|
|
|
|
config USB_CONN_GPIO
|
|
tristate "USB GPIO Based Connection Detection Driver"
|
|
depends on GPIOLIB
|
|
select USB_ROLE_SWITCH
|
|
help
|
|
The driver supports USB role switch between host and device via GPIO
|
|
based USB cable detection, used typically if an input GPIO is used
|
|
to detect USB ID pin, and another input GPIO may be also used to detect
|
|
Vbus pin at the same time, it also can be used to enable/disable
|
|
device if an input GPIO is only used to detect Vbus pin.
|
|
|
|
To compile the driver as a module, choose M here: the module will
|
|
be called usb-conn-gpio.ko
|