Merge branch 'master' of git://git.denx.de/u-boot-usb

[oweals/u-boot.git] / drivers / usb / host / usb-uclass.c

diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index 838d05af755b4fcc8868839eeb83cc753ac537e9..be114fc07715b3a900551cc1a55ba2da5198ecdb 100644 (file)
--- a/drivers/usb/host/usb-uclass.c
+++ b/drivers/usb/host/usb-uclass.c
@@ -14,7 +14,6 @@
 #include <usb.h>
 #include <dm/device-internal.h>
 #include <dm/lists.h>
-#include <dm/root.h>
 #include <dm/uclass-internal.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -158,11 +157,12 @@ int usb_stop(void)
                ret = device_remove(bus);
                if (ret && !err)
                        err = ret;
-               ret = device_unbind_children(bus);
-               if (ret && !err)
-                       err = ret;
        }
-
+#ifdef CONFIG_BLK
+       ret = blk_unbind_all(IF_TYPE_USB);
+       if (ret && !err)
+               err = ret;
+#endif
 #ifdef CONFIG_SANDBOX
        struct udevice *dev;
 
@@ -205,6 +205,20 @@ static void usb_scan_bus(struct udevice *bus, bool recurse)
                printf("%d USB Device(s) found\n", priv->next_addr);
 }
 
+static void remove_inactive_children(struct uclass *uc, struct udevice *bus)
+{
+       uclass_foreach_dev(bus, uc) {
+               struct udevice *dev, *next;
+
+               if (!device_active(bus))
+                       continue;
+               device_foreach_child_safe(dev, next, bus) {
+                       if (!device_active(dev))
+                               device_unbind(dev);
+               }
+       }
+}
+
 int usb_init(void)
 {
        int controllers_initialized = 0;
@@ -273,6 +287,15 @@ int usb_init(void)
        }
 
        debug("scan end\n");
+
+       /* Remove any devices that were not found on this scan */
+       remove_inactive_children(uc, bus);
+
+       ret = uclass_get(UCLASS_USB_HUB, &uc);
+       if (ret)
+               return ret;
+       remove_inactive_children(uc, bus);
+
        /* if we were not able to find at least one working bus, bail out */
        if (!count)
                printf("No controllers found\n");
@@ -282,6 +305,14 @@ int usb_init(void)
        return usb_started ? 0 : -1;
 }
 
+/*
+ * TODO(sjg@chromium.org): Remove this legacy function. At present it is needed
+ * to support boards which use driver model for USB but not Ethernet, and want
+ * to use USB Ethernet.
+ *
+ * The #if clause is here to ensure that remains the only case.
+ */
+#if !defined(CONFIG_DM_ETH) && defined(CONFIG_USB_HOST_ETHER)
 static struct usb_device *find_child_devnum(struct udevice *parent, int devnum)
 {
        struct usb_device *udev;
@@ -315,12 +346,7 @@ struct usb_device *usb_get_dev_index(struct udevice *bus, int index)
 
        return find_child_devnum(dev, devnum);
 }
-
-int usb_post_bind(struct udevice *dev)
-{
-       /* Scan the bus for devices */
-       return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false);
-}
+#endif
 
 int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp)
 {
@@ -735,7 +761,7 @@ UCLASS_DRIVER(usb) = {
        .id             = UCLASS_USB,
        .name           = "usb",
        .flags          = DM_UC_FLAG_SEQ_ALIAS,
-       .post_bind      = usb_post_bind,
+       .post_bind      = dm_scan_fdt_dev,
        .priv_auto_alloc_size = sizeof(struct usb_uclass_priv),
        .per_child_auto_alloc_size = sizeof(struct usb_device),
        .per_device_auto_alloc_size = sizeof(struct usb_bus_priv),