From mboxrd@z Thu Jan 1 00:00:00 1970 From: hdegoede@redhat.com (Hans de Goede) Date: Sun, 21 Aug 2016 14:16:37 +0200 Subject: [PATCH v3 5/7] phy-sun4i-usb: Warn when external vbus is detected In-Reply-To: <1471781799-10457-1-git-send-email-hdegoede@redhat.com> References: <1471781799-10457-1-git-send-email-hdegoede@redhat.com> Message-ID: <1471781799-10457-5-git-send-email-hdegoede@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Warn when external vbus is detected when we're trying to enable our own vbus. Signed-off-by: Hans de Goede --- Changes in v2: -No changes Changes in v3: -No changes --- 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) -- 2.7.4