Thread (2 messages) flat view 2 messages, 2 authors, 2021-01-07
STALE2040d LANDED: 1 (0M)

1 review trailer; landed in mainline as e2459108b5a0 on 2021-01-07.

[PATCH] usb: gadget: enable super speed plus

From: Lorenzo Colitti <hidden>
Date: 2021-01-06 15:47:15
Subsystem: the rest, usb subsystem · Maintainers: Linus Torvalds, Greg Kroah-Hartman

From: "taehyun.cho" <redacted>

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

Signed-off-by: taehyun.cho <redacted>
Tested-by: Lorenzo Colitti <redacted>
Signed-off-by: Lorenzo Colitti <redacted>
---
 drivers/usb/gadget/configfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 56051bb97349..976d3e6c3554 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1536,7 +1536,7 @@ 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",
@@ -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);
-- 
2.29.2.729.g45daf8777d-goog
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