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Commit a3aeeddf authored by taehyun.cho's avatar taehyun.cho Committed by Greg Kroah-Hartman
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usb: gadget: enable super speed plus 



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: default avatarLorenzo Colitti <lorenzo@google.com>
Acked-by: default avatarFelipe Balbi <balbi@kernel.org>
Signed-off-by: default avatartaehyun.cho <taehyun.cho@samsung.com>
Signed-off-by: default avatarLorenzo 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: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4fac8ce9

drivers/usb/gadget/configfs.c

+2 −2
Original line number Diff line number Diff line
@@ -1502,7 +1502,7 @@ static const struct usb_gadget_driver configfs_driver_template = { 
	.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);