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usb: chipidea: add USB PHY event

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Add USB PHY event for below situation:
- usb role changed
- vbus connect
- vbus disconnect
- gadget driver is enumerated

USB PHY driver can get the last event after above situation occurs
and deal with different situations.

Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20230627110353.1879477-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xu Yang
2023-06-27 19:03:51 +08:00
committed by Greg Kroah-Hartman
parent 7713aaf464
commit b7a62611fa
2 changed files with 26 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/usb/chipidea/ci.h
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@@ -281,8 +281,19 @@ static inline int ci_role_start(struct ci_hdrc *ci, enum ci_role role)
return -ENXIO;
ret = ci->roles[role]->start(ci);
if (!ret)
ci->role = role;
if (ret)
return ret;
ci->role = role;
if (ci->usb_phy) {
if (role == CI_ROLE_HOST)
usb_phy_set_event(ci->usb_phy, USB_EVENT_ID);
else
/* in device mode but vbus is invalid*/
usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
}
return ret;
}
@@ -296,6 +307,9 @@ static inline void ci_role_stop(struct ci_hdrc *ci)
ci->role = CI_ROLE_END;
ci->roles[role]->stop(ci);
if (ci->usb_phy)
usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
}
static inline enum usb_role ci_role_to_usb_role(struct ci_hdrc *ci)