From: taehyun.cho <taehyun....@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 <lore...@google.com> Acked-by: Felipe Balbi <ba...@kernel.org> Signed-off-by: taehyun.cho <taehyun....@samsung.com> Signed-off-by: Lorenzo Colitti <lore...@google.com> Link: https://lore.kernel.org/r/20210106154625.2801030-1-lore...@google.com Cc: stable <sta...@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gre...@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 @@ -1536,7 +1536,7 @@ 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", @@ -1576,7 +1576,7 @@ 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);
