Generate a Usb() node for USB hub devices.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- common/usb_hub.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+)
diff --git a/common/usb_hub.c b/common/usb_hub.c index 85c0822d8b..ccf9e16023 100644 --- a/common/usb_hub.c +++ b/common/usb_hub.c @@ -24,6 +24,7 @@ #include <common.h> #include <command.h> #include <dm.h> +#include <efi_loader.h> #include <env.h> #include <errno.h> #include <log.h> @@ -939,6 +940,35 @@ static int usb_hub_post_probe(struct udevice *dev) return usb_hub_scan(dev); }
+#if CONFIG_IS_ENABLED(EFI_LOADER) +struct efi_device_path *usb_hub_get_dp_node(struct udevice *dev) +{ + struct efi_device_path_usb *dp; + + dp = efi_alloc(sizeof(struct efi_device_path_usb)); + if (!dp) + return NULL; + + switch (device_get_uclass_id(dev->parent)) { + case UCLASS_USB_HUB: { + struct usb_device *udev = dev_get_parent_priv(dev); + + dp->parent_port_number = udev->portnr; + break; + } + default: + dp->parent_port_number = 0; + } + + dp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; + dp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_USB; + dp->dp.length = sizeof(*dp); + dp->usb_interface = 0; + + return &dp->dp; +} +#endif + static const struct udevice_id usb_hub_ids[] = { { .compatible = "usb-hub" }, { } @@ -960,6 +990,9 @@ UCLASS_DRIVER(usb_hub) = { .per_child_auto = sizeof(struct usb_device), .per_child_plat_auto = sizeof(struct usb_dev_plat), .per_device_auto = sizeof(struct usb_hub_device), +#if CONFIG_IS_ENABLED(EFI_LOADER) + .get_dp_node = usb_hub_get_dp_node, +#endif };
static const struct usb_device_id hub_id_table[] = {