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From: Andrei Kuchynski <akuchynski@chromium.org>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Abhishek Pandit-Subedi <abhishekpandit@chromium.org>,
	Benson Leung <bleung@chromium.org>,
	Jameson Thies <jthies@google.com>,
	Tzung-Bi Shih <tzungbi@kernel.org>,
	linux-usb@vger.kernel.org, chrome-platform@lists.linux.dev
Cc: Guenter Roeck <groeck@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
	"Christian A. Ehrhardt" <lk@c--e.de>,
	Venkat Jayaraman <venkat.jayaraman@intel.com>,
	linux-kernel@vger.kernel.org,
	Andrei Kuchynski <akuchynski@chromium.org>
Subject: [PATCH v1 0/5] USB Type-C alternate mode priorities
Date: Thu, 14 Aug 2025 18:44:50 +0000	[thread overview]
Message-ID: <20250814184455.723170-1-akuchynski@chromium.org> (raw)

This patch series introduces a mechanism for setting USB Type-C alternate
mode priorities. It allows the user to specify their preferred order for
mode selection, such as USB4, Thunderbolt, or DisplayPort.

A new sysfs attribute named 'priority' is exposed to provide user-space
control over the mode selection process.

This series was tested on a Android OS device running kernel 6.16.

Andrei Kuchynski (5):
  usb: typec: Add alt_mode_override field to port property
  platform/chrome: cros_ec_typec: Set alt_mode_override flag
  usb: typec: ucsi: Set alt_mode_override flag
  usb: typec: Implement alternate mode priority handling
  usb: typec: Expose alternate mode priority via sysfs

 Documentation/ABI/testing/sysfs-class-typec |  12 ++
 drivers/platform/chrome/cros_ec_typec.c     |   1 +
 drivers/usb/typec/Makefile                  |   2 +-
 drivers/usb/typec/class.c                   |  61 +++++++++-
 drivers/usb/typec/class.h                   |   3 +
 drivers/usb/typec/mode_selection.c          | 127 ++++++++++++++++++++
 drivers/usb/typec/mode_selection.h          |   8 ++
 drivers/usb/typec/ucsi/ucsi.c               |   2 +
 include/linux/usb/typec.h                   |   1 +
 include/linux/usb/typec_altmode.h           |   9 ++
 10 files changed, 221 insertions(+), 5 deletions(-)
 create mode 100644 drivers/usb/typec/mode_selection.c
 create mode 100644 drivers/usb/typec/mode_selection.h

-- 
2.51.0.rc0.215.g125493bb4a-goog


             reply	other threads:[~2025-08-14 18:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-14 18:44 Andrei Kuchynski [this message]
2025-08-14 18:44 ` [PATCH v1 1/5] usb: typec: Add alt_mode_override field to port property Andrei Kuchynski
2025-08-20 10:53   ` Heikki Krogerus
2025-08-21 14:19     ` Andrei Kuchynski
2025-08-14 18:44 ` [PATCH v1 2/5] platform/chrome: cros_ec_typec: Set alt_mode_override flag Andrei Kuchynski
2025-08-14 18:44 ` [PATCH v1 3/5] usb: typec: ucsi: " Andrei Kuchynski
2025-08-20 10:53   ` Heikki Krogerus
2025-08-14 18:44 ` [PATCH v1 4/5] usb: typec: Implement alternate mode priority handling Andrei Kuchynski
2025-08-21 10:09   ` Heikki Krogerus
2025-08-21 11:14     ` Heikki Krogerus
2025-08-22 12:52       ` Andrei Kuchynski
2025-08-14 18:44 ` [PATCH v1 5/5] usb: typec: Expose alternate mode priority via sysfs Andrei Kuchynski
2025-08-21  7:36   ` Heikki Krogerus
2025-08-21 14:44     ` Andrei Kuchynski

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