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| author | Xu Yang <xu.yang_2@nxp.com> | 2021-09-28 19:16:39 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-05 13:47:00 +0200 |
| commit | 6d91017a295e9790eec02c4e43f020cdb55f5d98 (patch) | |
| tree | 5f733617c5da2599b001123eb0b333fa683be83b /drivers | |
| parent | 05300871c0e21c288bd5c30ac6f9b1da6ddeed22 (diff) | |
| download | linux-stable-6d91017a295e9790eec02c4e43f020cdb55f5d98.tar.gz linux-stable-6d91017a295e9790eec02c4e43f020cdb55f5d98.tar.bz2 linux-stable-6d91017a295e9790eec02c4e43f020cdb55f5d98.zip | |
usb: typec: tcpm: handle SRC_STARTUP state if cc changes
TCPM for DRP should do the same action as SRC_ATTACHED when cc changes in
SRC_STARTUP state. Otherwise, TCPM will transition to SRC_UNATTACHED state
which is not satisfied with the Type-C spec.
Per Type-C spec:
DRP port should move to Unattached.SNK instead of Unattached.SRC if sink
removed.
Fixes: 4b4e02c83167 ("typec: tcpm: Move out of staging")
cc: <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20210928111639.3854174-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index a4d37205df54..7f2f3ff1b391 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -4876,6 +4876,7 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1, tcpm_set_state(port, SRC_ATTACH_WAIT, 0); break; case SRC_ATTACHED: + case SRC_STARTUP: case SRC_SEND_CAPABILITIES: case SRC_READY: if (tcpm_port_is_disconnected(port) || |