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gpio_vbus provides simple GPIO VBUS sensing for peripheral controllers with an internal transceiver. Optionally, a second GPIO can be used to control D+ pullup. It also interfaces with the regulator framework to limit charging currents when powered via USB. gpio_vbus requests the regulator supplying "vbus_draw" and can enable/disable it or limit its current depending on USB state. [dbrownell@users.sourceforge.net: use drivers/otg, cleanups ] Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
#
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# USB OTG infrastructure may be needed for peripheral-only, host-only,
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# or OTG-capable configurations when OTG transceivers or controllers
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# are used.
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#
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comment "OTG and related infrastructure"
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if USB || USB_GADGET
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config USB_OTG_UTILS
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bool
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help
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Select this to make sure the build includes objects from
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the OTG infrastructure directory.
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#
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# USB Transceiver Drivers
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#
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config USB_GPIO_VBUS
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tristate "GPIO based peripheral-only VBUS sensing 'transceiver'"
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depends on GENERIC_GPIO
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select USB_OTG_UTILS
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help
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Provides simple GPIO VBUS sensing for controllers with an
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internal transceiver via the otg_transceiver interface, and
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optionally control of a D+ pullup GPIO as well as a VBUS
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current limit regulator.
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config ISP1301_OMAP
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tristate "Philips ISP1301 with OMAP OTG"
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depends on I2C && ARCH_OMAP_OTG
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select USB_OTG_UTILS
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help
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If you say yes here you get support for the Philips ISP1301
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USB-On-The-Go transceiver working with the OMAP OTG controller.
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The ISP1301 is a full speed USB transceiver which is used in
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products including H2, H3, and H4 development boards for Texas
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Instruments OMAP processors.
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This driver can also be built as a module. If so, the module
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will be called isp1301_omap.
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endif # USB || OTG
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