linux-kernel - [PATCH 0/2] Add support for Type-C mux events without port partners

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Message-Id: <20210205195113.20277-1-rajmohan.mani@intel.com>
Date:   Fri,  5 Feb 2021 11:51:11 -0800
From:   Rajmohan Mani <rajmohan.mani@...el.com>
To:     Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        linux-kernel@...r.kernel.org
Cc:     heikki.krogerus@...ux.intel.com, pmalani@...omium.org,
        Rajmohan Mani <rajmohan.mani@...el.com>
Subject: [PATCH 0/2] Add support for Type-C mux events without port partners

There are cases, where support for Type-C mux events is needed, that
does not have port partners.
Enabling communication to a retimer connected to an USB4 port, when
no devices are attached, is a case that requires support for handling
Type-C mux events without port partners.

The following patches[1] are needed on top of the mainline kernel to be
able to verify these patches.

commit 8553a979fcd0 ("platform/chrome: cros_ec_typec: Send mux
		      configuration acknowledgment to EC")
commit ba8ce515454e ("platform/chrome: cros_ec_typec: Parameterize
		      cros_typec_cmds_supported()")
commit 156309096542 ("platform/chrome: cros_ec_typec: Register plug
		      altmodes")
commit f4edab68e101 ("platform/chrome: cros_ec_typec: Register SOP'
		      cable plug")
commit 599229763911 ("platform/chrome: cros_ec_typec: Set partner
		      num_altmodes")
commit 72d6e32bd85b ("platform/chrome: cros_ec_typec: Store cable plug
		      type")
commit 8b46a212ad11 ("platform/chrome: cros_ec_typec: Register cable")
commit c097f229b71e ("platform/chrome: cros_ec_typec: Rename discovery
		      struct")
commit 8fab2755191f ("platform/chrome: cros_ec_typec: Factor out PD
		      identity parsing")
commit a906f45d1480 ("platform/chrome: cros_ec_typec: Make disc_done
		      flag partner-only")

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/
linux.git/log/?h=cros-ec-typec-for-5.12

Rajmohan Mani (2):
  platform/chrome: cros_ec_typec: Skip port partner check in
    configure_mux()
  platform/chrome: cros_ec_types: Support disconnect events without
    partners

 drivers/platform/chrome/cros_ec_typec.c | 27 ++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

-- 
2.30.0