Merge git://git.denx.de/u-boot-socfpga

[platform/kernel/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 838d05a..0b8a501 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;
@@ -140,6 +139,17 @@ int usb_reset_root_port(struct usb_device *udev)
        return ops->reset_root_port(bus, udev);
 }
 
+int usb_update_hub_device(struct usb_device *udev)
+{
+       struct udevice *bus = udev->controller_dev;
+       struct dm_usb_ops *ops = usb_get_ops(bus);
+
+       if (!ops->update_hub_device)
+               return -ENOSYS;
+
+       return ops->update_hub_device(bus, udev);
+}
+
 int usb_stop(void)
 {
        struct udevice *bus;
@@ -155,14 +165,15 @@ int usb_stop(void)
        uc_priv = uc->priv;
 
        uclass_foreach_dev(bus, uc) {
-               ret = device_remove(bus);
-               if (ret && !err)
-                       err = ret;
-               ret = device_unbind_children(bus);
+               ret = device_remove(bus, DM_REMOVE_NORMAL);
                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;
 
@@ -177,7 +188,6 @@ int usb_stop(void)
 #ifdef CONFIG_USB_STORAGE
        usb_stor_reset();
 #endif
-       usb_hub_reset();
        uc_priv->companion_device_count = 0;
        usb_started = 0;
 
@@ -205,6 +215,20 @@ 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;
@@ -216,7 +240,6 @@ int usb_init(void)
        int ret;
 
        asynch_allowed = 1;
-       usb_hub_reset();
 
        ret = uclass_get(UCLASS_USB, &uc);
        if (ret)
@@ -273,6 +296,15 @@ 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 +314,14 @@ 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 +355,7 @@ 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)
 {
@@ -332,7 +367,7 @@ int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp)
        ret = uclass_find_device_by_seq(UCLASS_USB, 0, true, &dev);
        if (ret)
                return ret;
-       ret = device_remove(dev);
+       ret = device_remove(dev, DM_REMOVE_NORMAL);
        if (ret)
                return ret;
 
@@ -347,8 +382,8 @@ int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp)
 }
 
 /* returns 0 if no match, 1 if match */
-int usb_match_device(const struct usb_device_descriptor *desc,
-                    const struct usb_device_id *id)
+static int usb_match_device(const struct usb_device_descriptor *desc,
+                           const struct usb_device_id *id)
 {
        if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
            id->idVendor != le16_to_cpu(desc->idVendor))
@@ -384,9 +419,9 @@ int usb_match_device(const struct usb_device_descriptor *desc,
 }
 
 /* returns 0 if no match, 1 if match */
-int usb_match_one_id_intf(const struct usb_device_descriptor *desc,
-                         const struct usb_interface_descriptor *int_desc,
-                         const struct usb_device_id *id)
+static int usb_match_one_id_intf(const struct usb_device_descriptor *desc,
+                       const struct usb_interface_descriptor *int_desc,
+                       const struct usb_device_id *id)
 {
        /* The interface class, subclass, protocol and number should never be
         * checked for a match if the device class is Vendor Specific,
@@ -419,9 +454,9 @@ int usb_match_one_id_intf(const struct usb_device_descriptor *desc,
 }
 
 /* returns 0 if no match, 1 if match */
-int usb_match_one_id(struct usb_device_descriptor *desc,
-                    struct usb_interface_descriptor *int_desc,
-                    const struct usb_device_id *id)
+static int usb_match_one_id(struct usb_device_descriptor *desc,
+                           struct usb_interface_descriptor *int_desc,
+                           const struct usb_device_id *id)
 {
        if (!usb_match_device(desc, id))
                return 0;
@@ -654,22 +689,21 @@ int usb_detect_change(void)
        return change;
 }
 
-int usb_child_post_bind(struct udevice *dev)
+static int usb_child_post_bind(struct udevice *dev)
 {
        struct usb_dev_platdata *plat = dev_get_parent_platdata(dev);
-       const void *blob = gd->fdt_blob;
        int val;
 
-       if (dev->of_offset == -1)
+       if (!dev_of_valid(dev))
                return 0;
 
        /* We only support matching a few things */
-       val = fdtdec_get_int(blob, dev->of_offset, "usb,device-class", -1);
+       val = dev_read_u32_default(dev, "usb,device-class", -1);
        if (val != -1) {
                plat->id.match_flags |= USB_DEVICE_ID_MATCH_DEV_CLASS;
                plat->id.bDeviceClass = val;
        }
-       val = fdtdec_get_int(blob, dev->of_offset, "usb,interface-class", -1);
+       val = dev_read_u32_default(dev, "usb,interface-class", -1);
        if (val != -1) {
                plat->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS;
                plat->id.bInterfaceClass = val;
@@ -735,7 +769,7 @@ 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),