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From: Prashant Malani <pmalani@chromium.org>
To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
	linux-pm@vger.kernel.org, bleung@chromium.org,
	heikki.krogerus@linux.intel.com, badhri@google.com
Cc: Prashant Malani <pmalani@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Sebastian Reichel <sre@kernel.org>
Subject: [RFC PATCH 0/3] Type C partner power supply and PDO support.
Date: Thu,  2 Sep 2021 14:34:56 -0700	[thread overview]
Message-ID: <20210902213500.3795948-1-pmalani@chromium.org> (raw)

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(-)

-- 
2.33.0.153.gba50c8fa24-goog


             reply	other threads:[~2021-09-02 21:35 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-02 21:34 Prashant Malani [this message]
2021-09-02 21:34 ` [RFC PATCH 1/3] usb: pd: Increase max PDO objects to 13 Prashant Malani
2021-09-03  6:47   ` Jack Pham
2021-09-03 18:05     ` Jack Pham
2021-09-07 21:36       ` Prashant Malani
2021-09-07 23:28     ` Benson Leung
2021-09-09 17:37       ` Jack Pham
2021-09-02 21:35 ` [RFC PATCH 2/3] power: supply: Add support for PDOs props Prashant Malani
2021-09-13 13:30   ` Heikki Krogerus
2021-09-13 15:15     ` Adam Thomson
2021-09-13 19:30       ` Benson Leung
2021-09-14 10:28         ` Heikki Krogerus
2021-09-14 10:14       ` Heikki Krogerus
2021-09-16  7:22         ` Benson Leung
2021-09-16 10:23           ` Heikki Krogerus
2021-09-16 14:12             ` Adam Thomson
2021-09-16 16:16               ` Badhri Jagan Sridharan
2021-09-20 13:20                 ` Rajaram R
2021-09-22 10:40                   ` Heikki Krogerus
2021-09-21 10:53               ` Heikki Krogerus
2021-09-24 15:38                 ` Adam Thomson
2021-10-07 22:32                   ` Prashant Malani
2021-10-08 11:09                     ` Heikki Krogerus
2021-10-11 23:05                       ` Prashant Malani
2021-10-12 10:42                       ` Adam Thomson
2021-09-13 17:40     ` Benson Leung
2021-09-14 11:04       ` Heikki Krogerus
2021-09-02 21:35 ` [RFC PATCH 3/3] usb: typec: Add partner power registration call Prashant Malani

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