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![Ulf Magnusson](/assets/img/avatar_default.png)
'default' on a choice refers to the symbol selected by default, not to the choice mode, so 'default n' is meaningless. No functional changes. Optional choices implicitly default to n mode (and there is no way to make them default to another mode). Discovered in Kconfiglib (https://github.com/ulfalizer/Kconfiglib), which prints the following warning: warning: the default selection n (undefined) of <choice> (defined at drivers/usb/ulpi/Kconfig:3) is not contained in the choice I've added a corresponding warning to the C tools too, which is currently in linux-next: https://patchwork.kernel.org/patch/9983667/ Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
33 lines
871 B
Plaintext
33 lines
871 B
Plaintext
comment "ULPI drivers"
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choice
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prompt "ULPI Viewport type"
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optional
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help
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Select ULPI viewport (SoC-side interface to ULPI) implementation
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appropriate for the device if you want to communicate with
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UTMI (USB PHY) via ULPI interface.
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config USB_ULPI_VIEWPORT
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bool "Generic ULPI Viewport"
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help
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Support generic ULPI Viewport implementation that is used on
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some Tegra and Snapdragon devices.
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config USB_ULPI_VIEWPORT_OMAP
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bool "OMAP ULPI Viewport"
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help
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Support ULPI Viewport implementation that is used on OMAP devices.
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endchoice
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config USB_ULPI
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bool "ULPI support"
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depends on (USB_ULPI_VIEWPORT || USB_ULPI_VIEWPORT_OMAP)
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help
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Select to commnicate with USB PHY via ULPI interface.
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ULPI is wrapper on UTMI+ core that is used as
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PHY Transreceiver for USB controllers.
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This driver uses ULPI viewports that are specific for each SoC.
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