[PATCH 46/51] phy-sun4i-usb: Warn when external vbus is detected

Kishon Vijay Abraham I
2016-09-14T07:45:59Z

From: Hans de Goede <hdegoede@redhat.com>

Warn when external vbus is detected when we're trying to enable our
own vbus.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/phy/phy-sun4i-usb.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index af42f8d..03f030b 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -390,8 +390,10 @@ static int sun4i_usb_phy_power_on(struct phy *_phy)

/* For phy0 only turn on Vbus if we don't have an ext. Vbus */
if (phy->index == 0 && sun4i_usb_phy0_have_vbus_det(data) &&
- data->vbus_det)
+ data->vbus_det) {
+ dev_warn(&_phy->dev, "External vbus detected, not enabling our own vbus\n");
return 0;
+ }

ret = regulator_enable(phy->vbus);
if (ret)
--
1.7.9.5