usb: typec: Add support for retimers
authorPrashant Malani <pmalani@chromium.org>
Mon, 11 Jul 2022 07:22:55 +0000 (07:22 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 14 Jul 2022 14:24:05 +0000 (16:24 +0200)
commitddaf8d96f93bccb3f2b1f4f156c098b272440004
tree2d637fe3a47b7bf6b8d8d8a960539b89c205d513
parent69bb3520db7cecbccc9e497fc568fa5465c9d43f
usb: typec: Add support for retimers

Introduce a retimer device class and associated functions that register
and use retimer "switch" devices. These operate in a manner similar to
the "mode-switch" and help configure retimers that exist between the
Type-C connector and host controller(s).

Type C ports can be linked to retimers using firmware node device
references (again, in a manner similar to "mode-switch").

There are no new sysfs files being created; there is the new retimer
class directory, but there are no class-specific files being created
there.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20220711072333.2064341-2-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/typec/Makefile
drivers/usb/typec/class.c
drivers/usb/typec/class.h
drivers/usb/typec/retimer.c [new file with mode: 0644]
drivers/usb/typec/retimer.h [new file with mode: 0644]
include/linux/usb/typec_retimer.h [new file with mode: 0644]