The current code only returns -ENOTSUPP for OTG host, but in fact,
embedded host also needs to returns -ENOTSUPP if the peripheral
is not at TPL.
Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
---
Hi Greg,
If the time is ok, it is for 3.18-rc1, otherwise, it is a bugfix
for 3.18, thanks.
drivers/usb/core/hub.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 374b3f9..1d21b2c 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2319,11 +2319,12 @@ static int usb_enumerate_device(struct usb_device *udev)
return err;
if (IS_ENABLED(CONFIG_USB_OTG_WHITELIST) && hcd->tpl_support &&
- !is_targeted(udev) && IS_ENABLED(CONFIG_USB_OTG)) {
+ !is_targeted(udev)) {
/* Maybe it can talk to us, though we can't talk to it.
* (Includes HNP test device.)
*/
- if (udev->bus->b_hnp_enable || udev->bus->is_b_host) {
+ if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable
+ || udev->bus->is_b_host)) {
err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND);
if (err < 0)
dev_dbg(&udev->dev, "HNP fail, %d\n", err);
--
1.7.9.5
--
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