diff options
| author | Simon Appleby <Simon.Appleby@pickeringtest.com> | 2016-02-09 09:19:46 +0000 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2016-02-23 08:51:38 +0200 |
| commit | ca1c11894274c1687417945c034d6b8aee49f625 (patch) | |
| tree | 9ad0ec398ec33374d3642b6f9aae3e3312d83c94 /drivers | |
| parent | 7b0a271d5cadf5fbb5a9c7cb868776af2a2c248c (diff) | |
| download | lwn-ca1c11894274c1687417945c034d6b8aee49f625.tar.gz lwn-ca1c11894274c1687417945c034d6b8aee49f625.zip | |
usb: gadget: net2280: fix endpoint max packet for super speed connections
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/udc/net2280.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/net2280.h b/drivers/usb/gadget/udc/net2280.h index 4dff60d34f73..0d32052bf16f 100644 --- a/drivers/usb/gadget/udc/net2280.h +++ b/drivers/usb/gadget/udc/net2280.h @@ -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; |