From: taehyun.cho taehyun.cho@samsung.com
commit e2459108b5a0604c4b472cae2b3cb8d3444c77fb upstream.
Enable Super speed plus in configfs to support USB3.1 Gen2. This ensures that when a USB gadget is plugged in, it is enumerated as Gen 2 and connected at 10 Gbps if the host and cable are capable of it.
Many in-tree gadget functions (fs, midi, acm, ncm, mass_storage, etc.) already have SuperSpeed Plus support.
Tested: plugged gadget into Linux host and saw: [284907.385986] usb 8-2: new SuperSpeedPlus Gen 2 USB device number 3 using xhci_hcd
Tested-by: Lorenzo Colitti lorenzo@google.com Acked-by: Felipe Balbi balbi@kernel.org Signed-off-by: taehyun.cho taehyun.cho@samsung.com Signed-off-by: Lorenzo Colitti lorenzo@google.com Link: https://lore.kernel.org/r/20210106154625.2801030-1-lorenzo@google.com Cc: stable stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/gadget/configfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1502,7 +1502,7 @@ static const struct usb_gadget_driver co .suspend = configfs_composite_suspend, .resume = configfs_composite_resume,
- .max_speed = USB_SPEED_SUPER, + .max_speed = USB_SPEED_SUPER_PLUS, .driver = { .owner = THIS_MODULE, .name = "configfs-gadget", @@ -1542,7 +1542,7 @@ static struct config_group *gadgets_make gi->composite.unbind = configfs_do_nothing; gi->composite.suspend = NULL; gi->composite.resume = NULL; - gi->composite.max_speed = USB_SPEED_SUPER; + gi->composite.max_speed = USB_SPEED_SUPER_PLUS;
spin_lock_init(&gi->spinlock); mutex_init(&gi->lock);