From: Li Jun <b47624@xxxxxxxxxxxxx>
In otg fsm mode, vbus_active will be updated by otg fsm, this is to fix
the system hang issue if load gadget driver with vbus turned on, because
when binding gadget driver, if vbus_active is set, udc core will pull up
DP by enable R/S bit but controller is already runtime suspended.
Signed-off-by: Li Jun <jun.li@xxxxxxxxxxxxx>
---
drivers/usb/chipidea/core.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 5a186e3..74fea4f 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -798,11 +798,11 @@ static int ci_hdrc_probe(struct platform_device *pdev)
: CI_ROLE_GADGET;
}
- /* only update vbus status for peripheral */
- if (ci->role == CI_ROLE_GADGET)
- ci_handle_vbus_change(ci);
-
if (!ci_otg_is_fsm_mode(ci)) {
+ /* only update vbus status for peripheral */
+ if (ci->role == CI_ROLE_GADGET)
+ ci_handle_vbus_change(ci);
+
ret = ci_role_start(ci, ci->role);
if (ret) {
dev_err(dev, "can't start %s role\n",
--
1.7.9.5
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