usb: phy: omap: Add omap-control Support for AM437x

This adds omap control module support for USBSS in AM437x SoC.
Update DT binding information to reflect these changes.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c
index 09c5ace1edd8..e7253182e47d 100644
--- a/drivers/usb/phy/phy-omap-control.c
+++ b/drivers/usb/phy/phy-omap-control.c
@@ -84,6 +84,20 @@ void omap_control_usb_phy_power(struct device *dev, int on)
                 else
                         val |= OMAP_CTRL_USB2_PHY_PD;
                 break;
+
+        case OMAP_CTRL_TYPE_AM437USB2:
+                if (on) {
+                        val &= ~(AM437X_CTRL_USB2_PHY_PD |
+                                        AM437X_CTRL_USB2_OTG_PD);
+                        val |= (AM437X_CTRL_USB2_OTGVDET_EN |
+                                        AM437X_CTRL_USB2_OTGSESSEND_EN);
+                } else {
+                        val &= ~(AM437X_CTRL_USB2_OTGVDET_EN |
+                                        AM437X_CTRL_USB2_OTGSESSEND_EN);
+                        val |= (AM437X_CTRL_USB2_PHY_PD |
+                                         AM437X_CTRL_USB2_OTG_PD);
+                }
+                break;
         default:
                 dev_err(dev, "%s: type %d not recognized\n",
                                         __func__, control_usb->type);
@@ -197,6 +211,7 @@ static const enum omap_control_usb_type otghs_data = OMAP_CTRL_TYPE_OTGHS;
 static const enum omap_control_usb_type usb2_data = OMAP_CTRL_TYPE_USB2;
 static const enum omap_control_usb_type pipe3_data = OMAP_CTRL_TYPE_PIPE3;
 static const enum omap_control_usb_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2;
+static const enum omap_control_usb_type am437usb2_data = OMAP_CTRL_TYPE_AM437USB2;
 
 static const struct of_device_id omap_control_usb_id_table[] = {
         {
@@ -215,6 +230,10 @@ static const struct of_device_id omap_control_usb_id_table[] = {
                 .compatible = "ti,control-phy-dra7usb2",
                 .data = &dra7usb2_data,
         },
+        {
+                .compatible = "ti,control-phy-am437usb2",
+                .data = &am437usb2_data,
+        },
         {},
 };
 MODULE_DEVICE_TABLE(of, omap_control_usb_id_table);