FAILED: patch "[PATCH] usb: typec: tcpm: Skip hard reset when in error recovery" failed to apply to 5.10-stable tree

FAILED: patch "[PATCH] usb: typec: tcpm: Skip hard reset when in error recovery" failed to apply to 5.10-stable tree

[gregkh]

The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x a6fe37f428c19dd164c2111157d4a1029bd853aa
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023113029-uncurled-trout-d1ca@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..

Possible dependencies:

a6fe37f428c1 ("usb: typec: tcpm: Skip hard reset when in error recovery")
0908c5aca31e ("usb: typec: tcpm: AMS and Collision Avoidance")
f321a02caebd ("usb: typec: tcpm: Implement enabling Auto Discharge disconnect support")
a30a00e37ceb ("usb: typec: tcpm: frs sourcing vbus callback")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From a6fe37f428c19dd164c2111157d4a1029bd853aa Mon Sep 17 00:00:00 2001
From: Badhri Jagan Sridharan <badhri@google.com>
Date: Wed, 1 Nov 2023 02:19:09 +0000
Subject: [PATCH] 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>

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 058d5b853b57..b386102f7a3a 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -5391,6 +5391,15 @@ static void _tcpm_pd_hard_reset(struct tcpm_port *port)
 	if (port->bist_request == BDO_MODE_TESTDATA && port->tcpc->set_bist_data)
 		port->tcpc->set_bist_data(port->tcpc, false);
 
+	switch (port->state) {
+	case ERROR_RECOVERY:
+	case PORT_RESET:
+	case PORT_RESET_WAIT_OFF:
+		return;
+	default:
+		break;
+	}
+
 	if (port->ams != NONE_AMS)
 		port->ams = NONE_AMS;
 	if (port->hard_reset_count < PD_N_HARD_RESET_COUNT)