diff options
| author | Roger Quadros <rogerq@ti.com> | 2017-01-03 14:32:09 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 11:39:18 +0100 |
| commit | 5e3c2920e9f2f21d132df92318c5df2751da0b1f (patch) | |
| tree | c20ab43d4a821407cbd23596ab5b6ce52e2f95e8 /drivers/usb/dwc3/gadget.c | |
| parent | 81f1f24d1873f56c6810fcc1ca5d2ae965c01dfc (diff) | |
usb: dwc3: gadget: Fix full speed mode
commit 9418ee15f718939aa7e650fd586d73765eb21f20 upstream.
DCFG.DEVSPD == 0x3 is not valid and we need to set
DCFG.DEVSPD to 0x1 for full speed mode. Same goes for
DSTS.CONNECTSPD.
Old databooks had 0x3 for full speed in 48MHz mode for
USB1.1 transceivers which was never supported. Newer databooks
don't mention 0x3 at all.
Cc: John Youn <John.Youn@synopsys.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index b3687e223e00..7eff0412e3bb 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1606,7 +1606,7 @@ static int __dwc3_gadget_start(struct dwc3 *dwc) reg |= DWC3_DCFG_LOWSPEED; break; case USB_SPEED_FULL: - reg |= DWC3_DCFG_FULLSPEED1; + reg |= DWC3_DCFG_FULLSPEED; break; case USB_SPEED_HIGH: reg |= DWC3_DCFG_HIGHSPEED; @@ -2465,8 +2465,7 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) dwc->gadget.ep0->maxpacket = 64; dwc->gadget.speed = USB_SPEED_HIGH; break; - case DWC3_DSTS_FULLSPEED2: - case DWC3_DSTS_FULLSPEED1: + case DWC3_DSTS_FULLSPEED: dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(64); dwc->gadget.ep0->maxpacket = 64; dwc->gadget.speed = USB_SPEED_FULL; |