[PATCH v3] USB: mxs-phy: add basic otg support

[Richard Zhao]

Signed-off-by: Richard Zhao <richard.zhao at freescale.com>
Acked-by: Felipe Balbi <balbi at ti.com>
---
Changes from v2:
 - assign host/gadget in mxs_phy_set_host/mxs_phy_set_peripheral

 drivers/usb/otg/mxs-phy.c |   25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/otg/mxs-phy.c
index 88db976..3255112 100644
--- a/drivers/usb/otg/mxs-phy.c
+++ b/drivers/usb/otg/mxs-phy.c
@@ -129,12 +129,28 @@ static int mxs_phy_on_disconnect(struct usb_phy *phy, int port)
 	return 0;
 }
 
+static int mxs_phy_set_host(struct usb_otg *otg, struct usb_bus *host)
+{
+	otg->host = host;
+
+	return 0;
+}
+
+static int mxs_phy_set_peripheral(struct usb_otg *otg,
+					struct usb_gadget *gadget)
+{
+	otg->gadget = gadget;
+
+	return 0;
+}
+
 static int mxs_phy_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	void __iomem *base;
 	struct clk *clk;
 	struct mxs_phy *mxs_phy;
+	struct usb_otg *otg;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -171,6 +187,15 @@ static int mxs_phy_probe(struct platform_device *pdev)
 
 	mxs_phy->clk = clk;
 
+	otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg), GFP_KERNEL);
+	if (!otg)
+		return -ENOMEM;
+	otg->phy = &mxs_phy->phy;
+	otg->set_host = mxs_phy_set_host;
+	otg->set_peripheral = mxs_phy_set_peripheral;
+
+	mxs_phy->phy.otg = otg;
+
 	platform_set_drvdata(pdev, &mxs_phy->phy);
 
 	return 0;
-- 
1.7.9.5