usb: typec: ucsi: Better fix for missing unplug events issue

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The commit 217504a055 ("usb: typec: ucsi: Work around PPM
losing change information") had solved this issue
previously, but in a really complex manner. The core issue
is that on some platforms the EC firmware does not interrupt
the driver on unplug event in some cases, mainly when the
cable is unplugged immediately after the plug-in.

From now on handling that problem by simply re-checking new
connections.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210920142419.54493-8-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Heikki Krogerus 2021-09-20 17:24:19 +03:00 • committed by Greg Kroah-Hartman

parent bd19ac98f7

commit 512df95b94

2 changed files with 45 additions and 147 deletions

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190

drivers/usb/typec/ucsi/ucsi.c

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2

drivers/usb/typec/ucsi/ucsi.h

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