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| author | Kyle Tso <kyletso@google.com> | 2020-12-10 17:05:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-11 10:51:38 +0100 |
| commit | fe79d5de77204dd946cfad76a9bec23354b1a500 (patch) | |
| tree | f8b0c9b6fbcc23fbac8dfd4a95d2721342b22b5e /drivers/usb | |
| parent | 301a633c1b5b2caa4c4b97a83270d4a1d60c53bf (diff) | |
| download | linux-fe79d5de77204dd946cfad76a9bec23354b1a500.tar.gz linux-fe79d5de77204dd946cfad76a9bec23354b1a500.tar.bz2 linux-fe79d5de77204dd946cfad76a9bec23354b1a500.zip | |
USB: typec: tcpm: Add a 30ms room for tPSSourceOn in PR_SWAP
TCPM state machine needs 20-25ms to enter the ErrorRecovery state after
tPSSourceOn timer timeouts. Change the timer from max 480ms to 450ms to
ensure that the timer complies with the Spec. In order to keep the
flexibility for other usecases using tPSSourceOn, add another timer only
for PR_SWAP.
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kyle Tso <kyletso@google.com>
Signed-off-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20201210160521.3417426-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 3f9edc8a9a57..36b6ce85093f 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -3738,7 +3738,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_state(port, ERROR_RECOVERY, 0); break; } - tcpm_set_state(port, ERROR_RECOVERY, PD_T_PS_SOURCE_ON); + tcpm_set_state(port, ERROR_RECOVERY, PD_T_PS_SOURCE_ON_PRS); break; case PR_SWAP_SRC_SNK_SINK_ON: /* Set the vbus disconnect threshold for implicit contract */ |