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| author | Chen-Yu Tsai <wens@csie.org> | 2019-03-22 16:51:08 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-26 16:48:55 +0900 |
| commit | e671765e521c571afec3157a7e17502d54f6a43e (patch) | |
| tree | b1753d9c85874ff4d2f287e2ff42310bed590cd2 /drivers/usb/core | |
| parent | 1396929e8a903db80425343cacca766a18ad6409 (diff) | |
| download | linux-e671765e521c571afec3157a7e17502d54f6a43e.tar.gz linux-e671765e521c571afec3157a7e17502d54f6a43e.tar.bz2 linux-e671765e521c571afec3157a7e17502d54f6a43e.zip | |
usb: core: Try generic PHY_MODE_USB_HOST if usb_phy_roothub_set_mode fails
Some PHYs do not support PHY_MODE_USB_HOST_SS, i.e. USB 3.0 or higher.
Fall back and try the more generic PHY_MODE_USB_HOST if it fails.
Fixes: b97a31348379 ("usb: core: comply to PHY framework")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/hcd.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 3189181bb628..975d7c1288e3 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2742,6 +2742,9 @@ int usb_add_hcd(struct usb_hcd *hcd, retval = usb_phy_roothub_set_mode(hcd->phy_roothub, PHY_MODE_USB_HOST_SS); if (retval) + retval = usb_phy_roothub_set_mode(hcd->phy_roothub, + PHY_MODE_USB_HOST); + if (retval) goto err_usb_phy_roothub_power_on; retval = usb_phy_roothub_power_on(hcd->phy_roothub); |