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authorGuan-Yu Lin <guanyulin@google.com>2023-11-16 11:32:16 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-11-23 15:32:43 +0300
commite0cc05d52ad310cced029449bcda0f9fc847097c (patch)
treed470ed7d4d6f4dbf07073cad493aed6d2ea0de9e /Documentation/devicetree/bindings/usb
parent9768af12edb3b23cfa1f7c05e019115b73f9490c (diff)
downloadlinux-e0cc05d52ad310cced029449bcda0f9fc847097c.tar.xz
usb: typec: tcpm: skip checking port->send_discover in PD3.0
The original Collison Avoidance mechanism, port->send_discover, avoids the conflict when port partners start AMS almost the same time. However, this mechanism is replaced by SINK_TX_OK and SINK_TX_NG. Skip the check in PD3.0 to avoid the deadlock when source is requesting DR_SWAP where sink is requesting DISCOVER_IDENTITY. Signed-off-by: Guan-Yu Lin <guanyulin@google.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20231116083221.1201892-1-guanyulin@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/usb')
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