[RFC,0/3] Type C partner power supply and PDO support.

Message

Prashant Malani Sept. 2, 2021, 9:34 p.m. UTC

Hi,

We'd like to expose the USB PD Power Source/Sink capabilities provided
by a partner (SOP) to userspace. Towards that end,
here is a short series which adds the capabilities to the power supply
class. We also add a function to the Type C connector class
to register a power supply device for a connected partner.

I'm sending this out as an RFC to get some initial feedback from the
relevant groups. Once we can settle on an approach, I can resend the
series with a sample implementation in the Chrome OS Type C port driver
(cros-ec-typec).

Thanks!

Prashant Malani (3):
  usb: pd: Increase max PDO objects to 13
  power: supply: Add support for PDOs props
  usb: typec: Add partner power registration call

 Documentation/ABI/testing/sysfs-class-power | 30 +++++++++++++++++++++
 drivers/power/supply/power_supply_sysfs.c   | 18 ++++++++++++-
 drivers/usb/typec/class.c                   | 18 ++++++++++++-
 drivers/usb/typec/class.h                   |  2 ++
 include/linux/power_supply.h                |  5 ++++
 include/linux/usb/pd.h                      |  8 +++++-
 include/linux/usb/typec.h                   |  5 ++++
 7 files changed, 83 insertions(+), 3 deletions(-)