usb: typec: tcpm: Add support for Battery Status response message

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Add support for responding to a Get_Battery_Status request with a
Battery_Status message. The port partner shall request the status of a
port's battery by providing an index in the Get_Battery_Status AMS. In
case of failure to identify the battery, the port shall reply with an
appropriate message indicating so.

Support for Battery_Status message is required for sinks that contain
battery as specified in USB PD Rev3.1 v1.8
("Applicability of Data Messages" section).

Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
Reviewed-by: Badhri Jagan Sridharan <badhri@google.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260714-batt-status-v5-2-9de4aa900b69@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Amit Sunil Dhamne 2026-07-14 21:10:53 +00:00 • committed by Greg Kroah-Hartman

parent 3b17c8d8d6

commit 6ffa374938

2 changed files with 163 additions and 4 deletions

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138

drivers/usb/typec/tcpm/tcpm.c

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29

include/linux/usb/pd.h

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