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usb: gadget: net2280: fix endpoint max packet for super speed connections

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This patch fixes the register offset used for super-speed connection's
max packet size. Without it using the 338x series of devices in enhanced
mode will only allow full or high speed operation to function correctly.

Signed-off-by: Simon Appleby <simon.appleby@pickeringtest.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Simon Appleby 2016-02-09 09:19:46 +00:00 committed by Felipe Balbi
parent 7b0a271d5c
commit ca1c118942
1 changed files with 13 additions and 2 deletions
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15
drivers/usb/gadget/udc/net2280.h
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@ -369,9 +369,20 @@ static inline void set_max_speed(struct net2280_ep *ep, u32 max)
static const u32 ep_enhanced[9] = { 0x10, 0x60, 0x30, 0x80,
0x50, 0x20, 0x70, 0x40, 0x90 };
if (ep->dev->enhanced_mode)
if (ep->dev->enhanced_mode) {
reg = ep_enhanced[ep->num];
else{
switch (ep->dev->gadget.speed) {
case USB_SPEED_SUPER:
reg += 2;
break;
case USB_SPEED_FULL:
reg += 1;
break;
case USB_SPEED_HIGH:
default:
break;
}
} else {
reg = (ep->num + 1) * 0x10;
if (ep->dev->gadget.speed != USB_SPEED_HIGH)
reg += 1;