usb: typec: tcpm: add state machine support for SRC_VDM_IDENTITY_REQUEST

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Add SRC_VDM_IDENTITY_REQUEST state which first enters after SRC_STARTUP.
The state sends Discover Identity on SOP' and transitions to
SRC_SEND_CAPABILITIES. SRC_SEND_CAPABILITIES will transition back into
SRC_VDM_IDENTITY_REQUEST instead of retrying immediately.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-23-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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RD Babiera 2024-01-08 19:16:22 +00:00 • committed by Greg Kroah-Hartman

parent fb7ff25ae4

commit af8b627046

1 changed files with 43 additions and 6 deletions

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drivers/usb/typec/tcpm/tcpm.c

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