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usb: chipidea: otg: handling vbus disconnect event occurred during system suspend

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During system suspend, the role switch may occur, eg, from gadget->host.
In this case, the vbus disconnect event is lost, we add this handling
in role switch routine in this commit.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
This commit is contained in:
Peter Chen 2020-02-19 17:25:48 +08:00
parent 7fd87c956c
commit 3ac82cf3f8
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1 changed files with 7 additions and 0 deletions
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7
drivers/usb/chipidea/otg.c
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@ -170,6 +170,13 @@ static void ci_handle_id_switch(struct ci_hdrc *ci)
dev_dbg(ci->dev, "switching from %s to %s\n",
ci_role(ci)->name, ci->roles[role]->name);
if (ci->vbus_active && ci->role == CI_ROLE_GADGET)
/*
* vbus disconnect event is lost due to role
* switch occurs during system suspend.
*/
usb_gadget_vbus_disconnect(&ci->gadget);
ci_role_stop(ci);
if (role == CI_ROLE_GADGET &&