mvebu: usb: xhci: Add VBUS regulator supply to the host driver

[u-boot] / drivers / usb / host / ehci-mx6.c

diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index 18b7fc3c9520bb662667eef6e35e495327b179cd..55ac162a3c04c09dbf15a6e54770af459d5b1921 100644 (file)
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -17,6 +17,7 @@
 #include <asm/imx-common/iomux-v3.h>
 #include <asm/imx-common/sys_proto.h>
 #include <dm.h>
+#include <power/regulator.h>
 
 #include "ehci.h"
 
@@ -388,6 +389,7 @@ int ehci_hcd_stop(int index)
 struct ehci_mx6_priv_data {
        struct ehci_ctrl ctrl;
        struct usb_ehci *ehci;
+       struct udevice *vbus_supply;
        enum usb_init_type init_type;
        int portnr;
 };
@@ -403,7 +405,15 @@ static int mx6_init_after_reset(struct ehci_ctrl *dev)
        if (ret)
                return ret;
 
-       board_ehci_power(priv->portnr, (type == USB_INIT_DEVICE) ? 0 : 1);
+       if (priv->vbus_supply) {
+               ret = regulator_set_enable(priv->vbus_supply,
+                                          (type == USB_INIT_DEVICE) ?
+                                          false : true);
+               if (ret) {
+                       puts("Error enabling VBUS supply\n");
+                       return ret;
+               }
+       }
 
        if (type == USB_INIT_DEVICE)
                return 0;
@@ -427,7 +437,7 @@ static int ehci_usb_phy_mode(struct udevice *dev)
        void *__iomem addr = (void *__iomem)dev_get_addr(dev);
        void *__iomem phy_ctrl, *__iomem phy_status;
        const void *blob = gd->fdt_blob;
-       int offset = dev->of_offset, phy_off;
+       int offset = dev_of_offset(dev), phy_off;
        u32 val;
 
        /*
@@ -474,7 +484,7 @@ static int ehci_usb_ofdata_to_platdata(struct udevice *dev)
        struct usb_platdata *plat = dev_get_platdata(dev);
        const char *mode;
 
-       mode = fdt_getprop(gd->fdt_blob, dev->of_offset, "dr_mode", NULL);
+       mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "dr_mode", NULL);
        if (mode) {
                if (strcmp(mode, "peripheral") == 0)
                        plat->init_type = USB_INIT_DEVICE;
@@ -496,19 +506,33 @@ static int ehci_usb_probe(struct udevice *dev)
        struct usb_platdata *plat = dev_get_platdata(dev);
        struct usb_ehci *ehci = (struct usb_ehci *)dev_get_addr(dev);
        struct ehci_mx6_priv_data *priv = dev_get_priv(dev);
+       enum usb_init_type type = plat->init_type;
        struct ehci_hccr *hccr;
        struct ehci_hcor *hcor;
        int ret;
 
        priv->ehci = ehci;
        priv->portnr = dev->seq;
-       priv->init_type = plat->init_type;
+       priv->init_type = type;
+
+       ret = device_get_supply_regulator(dev, "vbus-supply",
+                                         &priv->vbus_supply);
+       if (ret)
+               debug("%s: No vbus supply\n", dev->name);
 
        ret = ehci_mx6_common_init(ehci, priv->portnr);
        if (ret)
                return ret;
 
-       board_ehci_power(priv->portnr, (priv->init_type == USB_INIT_DEVICE) ? 0 : 1);
+       if (priv->vbus_supply) {
+               ret = regulator_set_enable(priv->vbus_supply,
+                                          (type == USB_INIT_DEVICE) ?
+                                          false : true);
+               if (ret) {
+                       puts("Error enabling VBUS supply\n");
+                       return ret;
+               }
+       }
 
        if (priv->init_type == USB_INIT_HOST) {
                setbits_le32(&ehci->usbmode, CM_HOST);