usb: fotg210-udc: Implement VBUS session

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Implement VBUS session handling for FOTG210. This is
mainly used by the UDC driver which needs to call down to
the FOTG210 core and enable/disable VBUS, as this needs to be
handled outside of the HCD and UDC drivers, by platform
specific glue code.

The Gemini has a special bit in a system register to turn
VBUS on and off so we implement this in the FOTG210 core.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230103-gemini-fotg210-usb-v2-7-100388af9810@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Linus Walleij 2023-01-18 08:09:21 +01:00 • committed by Greg Kroah-Hartman

parent 816f518df2

commit 3e679bde52

3 changed files with 48 additions and 0 deletions

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29

drivers/usb/fotg210/fotg210-core.c

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17

drivers/usb/fotg210/fotg210-udc.c

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2

drivers/usb/fotg210/fotg210.h

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