usb: typec: ucsi: Support for DisplayPort alt mode

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This makes it possible to bind a driver to a DisplayPort
alt mode adapter devices.

The driver attempts to cope with the limitations of UCSI by
"emulating" behaviour and attempting to guess things when
ever possible in order to satisfy the requirements the
standard DisplayPort alt mode driver has.

Tested-by: Ajay Gupta <ajayg@nvidia.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Heikki Krogerus 2019-04-23 17:21:49 +03:00 • committed by Greg Kroah-Hartman

parent ad74b8649b

commit af8622f6a5

4 changed files with 364 additions and 8 deletions

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15

drivers/usb/typec/ucsi/Makefile

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315

drivers/usb/typec/ucsi/displayport.c

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21

drivers/usb/typec/ucsi/ucsi.c

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21

drivers/usb/typec/ucsi/ucsi.h

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