| Message ID | 20170120185057.16206-5-stephen.boyd@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Support qcom's HSIC USB and rewrite USB2 HS support | expand |
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c index 10236fe71522..6ea702beed48 100644 --- a/drivers/usb/chipidea/otg.c +++ b/drivers/usb/chipidea/otg.c @@ -134,10 +134,13 @@ void ci_handle_vbus_change(struct ci_hdrc *ci) if (!ci->is_otg) return; - if (hw_read_otgsc(ci, OTGSC_BSV) && !ci->vbus_active) + if (hw_read_otgsc(ci, OTGSC_BSV) && !ci->vbus_active) { usb_gadget_vbus_connect(&ci->gadget); - else if (!hw_read_otgsc(ci, OTGSC_BSV) && ci->vbus_active) + phy_set_vbus(ci->phy, 1); + } else if (!hw_read_otgsc(ci, OTGSC_BSV) && ci->vbus_active) { + phy_set_vbus(ci->phy, 0); usb_gadget_vbus_disconnect(&ci->gadget); + } } /**
Some USB PHYs need to be told about vbus changing state explicitly. For example the qcom USB HS PHY needs to toggle a bit when vbus goes from low to high (VBUSVLDEXT) to cause the "session valid" signal to toggle. This signal will pull up D+ when the phy starts running. Add the appropriate phy_set_vbus() call here to signal vbus state changes to the phy. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> --- New patch drivers/usb/chipidea/otg.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) -- 2.10.0.297.gf6727b0