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-rw-r--r--drivers/usb/gadget/composite.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 1063c57..2a309e6 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -532,6 +532,19 @@ int usb_add_config(struct usb_composite_dev *cdev,
}
}
+ /*
+ * If one function of config is not super speed capable,
+ * force the gadget to be high speed so controller driver
+ * can init HW to be USB 2.0
+ */
+ if (gadget_is_superspeed(cdev->gadget)) {
+ list_for_each_entry(f, &config->functions, list) {
+ if (!f->ss_descriptors)
+ cdev->gadget->max_speed =
+ USB_SPEED_HIGH;
+ }
+ }
+
usb_ep_autoconfig_reset(cdev->gadget);
os_desc_config = config;