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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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/usb/chipidea/ci.h
View File

@ -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)

10
drivers/usb/chipidea/udc.c
View File

@ -1718,6 +1718,13 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
ret = ci->platdata->notify_event(ci,
CI_HDRC_CONTROLLER_VBUS_EVENT);
if (ci->usb_phy) {
if (is_active)
usb_phy_set_event(ci->usb_phy, USB_EVENT_VBUS);
else
usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
}
if (ci->driver)
ci_hdrc_gadget_connect(_gadget, is_active);
@ -2034,6 +2041,9 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci)
if (USBi_PCI & intr) {
ci->gadget.speed = hw_port_is_high_speed(ci) ?
USB_SPEED_HIGH : USB_SPEED_FULL;
if (ci->usb_phy)
usb_phy_set_event(ci->usb_phy,
USB_EVENT_ENUMERATED);
if (ci->suspended) {
if (ci->driver->resume) {
spin_unlock(&ci->lock);