phy: omap-usb2: Adapt phy-omap-usb2 for AM437x

Adapt phy-omap-usb2 driver for AM437x.
	- Add new comaptible "ti,am437x-usb2" for AM437x
	- Pass proper data to differentiate AM437x and others.
	- AM437x doesnot support  set_vbus and start_srp.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

1 files changed, 37 insertions, 12 deletions

diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 9c3f056b3ddf..0c78f54d0650 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -122,6 +122,31 @@ static struct phy_ops ops = {
         .owner          = THIS_MODULE,
 };
 
+#ifdef CONFIG_OF
+static const struct usb_phy_data omap_usb2_data = {
+        .label = "omap_usb2",
+        .flags = OMAP_USB2_HAS_START_SRP | OMAP_USB2_HAS_SET_VBUS,
+};
+
+static const struct usb_phy_data am437x_usb2_data = {
+        .label = "am437x_usb2",
+        .flags =  0,
+};
+
+static const struct of_device_id omap_usb2_id_table[] = {
+        {
+                .compatible = "ti,omap-usb2",
+                .data = &omap_usb2_data,
+        },
+        {
+                .compatible = "ti,am437x-usb2",
+                .data = &am437x_usb2_data,
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
+#endif
+
 static int omap_usb2_probe(struct platform_device *pdev)
 {
         struct omap_usb *phy;
@@ -131,10 +156,16 @@ static int omap_usb2_probe(struct platform_device *pdev)
         struct device_node *node = pdev->dev.of_node;
         struct device_node *control_node;
         struct platform_device *control_pdev;
+        const struct of_device_id *of_id;
+        struct usb_phy_data *phy_data;
+
+        of_id = of_match_device(of_match_ptr(omap_usb2_id_table), &pdev->dev);
 
-        if (!node)
+        if (!of_id)
                 return -EINVAL;
 
+        phy_data = (struct usb_phy_data *)of_id->data;
+
         phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
         if (!phy) {
                 dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n");
@@ -150,7 +181,7 @@ static int omap_usb2_probe(struct platform_device *pdev)
         phy->dev                = &pdev->dev;
 
         phy->phy.dev            = phy->dev;
-        phy->phy.label          = "omap-usb2";
+        phy->phy.label          = phy_data->label;
         phy->phy.otg            = otg;
         phy->phy.type           = USB_PHY_TYPE_USB2;
 
@@ -171,8 +202,10 @@ static int omap_usb2_probe(struct platform_device *pdev)
 
         otg->set_host           = omap_usb_set_host;
         otg->set_peripheral     = omap_usb_set_peripheral;
-        otg->set_vbus           = omap_usb_set_vbus;
-        otg->start_srp          = omap_usb_start_srp;
+        if (phy_data->flags & OMAP_USB2_HAS_SET_VBUS)
+                otg->set_vbus           = omap_usb_set_vbus;
+        if (phy_data->flags & OMAP_USB2_HAS_START_SRP)
+                otg->start_srp          = omap_usb_start_srp;
         otg->phy                = &phy->phy;
 
         platform_set_drvdata(pdev, phy);
@@ -272,14 +305,6 @@ static const struct dev_pm_ops omap_usb2_pm_ops = {
 #define DEV_PM_OPS     NULL
 #endif
 
-#ifdef CONFIG_OF
-static const struct of_device_id omap_usb2_id_table[] = {
-        { .compatible = "ti,omap-usb2" },
-        {}
-};
-MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
-#endif
-
 static struct platform_driver omap_usb2_driver = {
         .probe          = omap_usb2_probe,
         .remove         = omap_usb2_remove,