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dm: usb: Convert uclass to livetree

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Update the usb uclass to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2017-05-18 20:09:38 -06:00
parent 53d788d868
commit d20fd27d8f
1 changed files with 3 additions and 5 deletions
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8
drivers/usb/host/usb-uclass.c
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@ -683,20 +683,18 @@ int usb_detect_change(void)
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(dev) == -1)
if (!dev_of_valid(dev))
return 0;
/* We only support matching a few things */
val = fdtdec_get_int(blob, dev_of_offset(dev), "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(dev), "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;