linux-kernel - [PATCH] usb: typec: ucsi: move typec_set_mode(TYPEC_STATE_SAFE) to ucsi_unregister

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Message-Id: <20230626-topic-sm8550-usb-c-audio-fixup-v1-1-bc72fddf3f42@linaro.org>
Date:   Mon, 26 Jun 2023 18:52:00 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH] usb: typec: ucsi: move typec_set_mode(TYPEC_STATE_SAFE) to
 ucsi_unregister_partner()

It's better to set TYPEC_STATE_SAFE mode from ucsi_unregister_partner()
instead of ucsi_partner_change(), ucsi_unregister_partner() is always
when the partner disconnects.

Fixes: 25a2bc21c863 ("usb: typec: ucsi: call typec_set_mode on non-altmode partner change")
Suggested-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 drivers/usb/typec/ucsi/ucsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 9b6d6b14431f..f6901319639d 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -785,6 +785,8 @@ static void ucsi_unregister_partner(struct ucsi_connector *con)
 	if (!con->partner)
 		return;
 
+	typec_set_mode(con->port, TYPEC_STATE_SAFE);
+
 	ucsi_unregister_partner_pdos(con);
 	ucsi_unregister_altmodes(con, UCSI_RECIPIENT_SOP);
 	typec_unregister_partner(con->partner);
@@ -825,8 +827,6 @@ static void ucsi_partner_change(struct ucsi_connector *con)
 					UCSI_CONSTAT_PARTNER_FLAG_USB)
 				typec_set_mode(con->port, TYPEC_STATE_USB);
 		}
-	} else {
-		typec_set_mode(con->port, TYPEC_STATE_SAFE);
 	}
 
 	/* Only notify USB controller if partner supports USB data */

---
base-commit: 60e7c4a25da68cd826719b685babbd23e73b85b0
change-id: 20230626-topic-sm8550-usb-c-audio-fixup-9ee3cac5e00f

Best regards,
-- 
Neil Armstrong <neil.armstrong@...aro.org>