USB: fix occasional ULPI timeouts with ehci-mxc

On various mxc boards, the intial ULPI reads resulted in a timeout
which prevented the transceiver to be identified and thus the ehci
device to be probed.

Initializing the hardware lines connected to the transceiver (through
pdata->init call) before actually enabling clocks and configuring
registers in the devices fixes this problem.
Signed-off-by: NValentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/ehci-mxc.c

@@ -162,6 +162,17 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 		goto err_ioremap;
 	}
 
+	/* call platform specific init function */
+	if (pdata->init) {
+		ret = pdata->init(pdev);
+		if (ret) {
+			dev_err(dev, "platform init failed\n");
+			goto err_init;
+		}
+		/* platforms need some time to settle changed IO settings */
+		mdelay(10);
+	}
+
 	/* enable clocks */
 	priv->usbclk = clk_get(dev, "usb");
 	if (IS_ERR(priv->usbclk)) {
@@ -192,18 +203,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto err_init;
 
-	/* call platform specific init function */
-	if (pdata->init) {
-		ret = pdata->init(pdev);
-		if (ret) {
-			dev_err(dev, "platform init failed\n");
-			goto err_init;
-		}
-	}
-
-	/* most platforms need some time to settle changed IO settings */
-	mdelay(10);
-
 	/* Initialize the transceiver */
 	if (pdata->otg) {
 		pdata->otg->io_priv = hcd->regs + ULPI_VIEWPORT_OFFSET;