]> git.dujemihanovic.xyz Git - linux.git/commit
usb: typec: tcpm: Skip hard reset when in error recovery
authorBadhri Jagan Sridharan <badhri@google.com>
Wed, 1 Nov 2023 02:19:09 +0000 (02:19 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 21 Nov 2023 14:26:05 +0000 (15:26 +0100)
commita6fe37f428c19dd164c2111157d4a1029bd853aa
treeebe8f5abdf24c5719e5840af75e997b81b51ec50
parent41058707bea93b979c4854bdb857e46f2b85df92
usb: typec: tcpm: Skip hard reset when in error recovery

Hard reset queued prior to error recovery (or) received during
error recovery will make TCPM to prematurely exit error recovery
sequence. Ignore hard resets received during error recovery (or)
port reset sequence.

```
[46505.459688] state change SNK_READY -> ERROR_RECOVERY [rev3 NONE_AMS]
[46505.459706] state change ERROR_RECOVERY -> PORT_RESET [rev3 NONE_AMS]
[46505.460433] disable vbus discharge ret:0
[46505.461226] Setting usb_comm capable false
[46505.467244] Setting voltage/current limit 0 mV 0 mA
[46505.467262] polarity 0
[46505.470695] Requesting mux state 0, usb-role 0, orientation 0
[46505.475621] cc:=0
[46505.476012] pending state change PORT_RESET -> PORT_RESET_WAIT_OFF @ 100 ms [rev3 NONE_AMS]
[46505.476020] Received hard reset
[46505.476024] state change PORT_RESET -> HARD_RESET_START [rev3 HARD_RESET]
```

Cc: stable@vger.kernel.org
Fixes: f0690a25a140 ("staging: typec: USB Type-C Port Manager (tcpm)")
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Acked-by: Heikki Krogeus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20231101021909.2962679-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/typec/tcpm/tcpm.c