usb: chipidea: usbmisc: evdo can be set e/o reset

evdo bit can be set or reset. We can not trust evdo bit
status after bootloader stage
Signed-off-by: NMichael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: NPeter Chen <peter.chen@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/chipidea/usbmisc_imx.c

@@ -151,14 +151,18 @@ static int usbmisc_imx25_post(struct imx_usbmisc_data *data)
 	if (data->index)
 		return 0;
 
-	if (data->evdo) {
 	spin_lock_irqsave(&usbmisc->lock, flags);
 	reg = usbmisc->base + MX25_USB_PHY_CTRL_OFFSET;
 	val = readl(reg);
-		writel(val | MX25_BM_EXTERNAL_VBUS_DIVIDER, reg);
+
+	if (data->evdo)
+		val |= MX25_BM_EXTERNAL_VBUS_DIVIDER;
+	else
+		val &= ~MX25_BM_EXTERNAL_VBUS_DIVIDER;
+
+	writel(val, reg);
 	spin_unlock_irqrestore(&usbmisc->lock, flags);
 	usleep_range(5000, 10000); /* needed to stabilize voltage */
-	}
 
 	return 0;
 }