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| author |   Paul Zimmerman <Paul.Zimmerman@synopsys.com> | 2011-09-30 10:58:42 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-04 10:25:52 -0700 |
| commit | b23c843992b659d537514e6493d673284f5d6724 (patch) | |
| tree | d5bec8c89888dd1d4b6ea58ec39211d92a1528e3 /drivers/usb/dwc3/gadget.c | |
| parent | usb: dwc: remove "All rights reserved" statement. (diff) | |
| download | linux-dev-b23c843992b659d537514e6493d673284f5d6724.tar.xz linux-dev-b23c843992b659d537514e6493d673284f5d6724.zip | |
usb: dwc3: gadget: fix DEPSTARTCFG for non-EP0 EPs
DEPSTARTCFG for non-EP0 EPs must only be sent once per config
[ balbi@ti.com : changed config_start to start_config_issued ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index b2820aa9fa46..9c0174a8f46c 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -237,8 +237,12 @@ static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep) if (dep->number != 1) { cmd = DWC3_DEPCMD_DEPSTARTCFG; /* XferRscIdx == 0 for ep0 and 2 for the remaining */ - if (dep->number > 1) + if (dep->number > 1) { + if (dwc->start_config_issued) + return 0; + dwc->start_config_issued = true; cmd |= DWC3_DEPCMD_PARAM(2); + } return dwc3_send_gadget_ep_cmd(dwc, 0, cmd, ¶ms); } @@ -1161,6 +1165,8 @@ static int dwc3_gadget_start(struct usb_gadget *g, reg |= DWC3_DCFG_SUPERSPEED; dwc3_writel(dwc->regs, DWC3_DCFG, reg); + dwc->start_config_issued = false; + /* Start with SuperSpeed Default */ dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); @@ -1592,6 +1598,7 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc) dwc3_stop_active_transfers(dwc); dwc3_disconnect_gadget(dwc); + dwc->start_config_issued = false; dwc->gadget.speed = USB_SPEED_UNKNOWN; } @@ -1643,6 +1650,7 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) dwc3_stop_active_transfers(dwc); dwc3_clear_stall_all_ep(dwc); + dwc->start_config_issued = false; /* Reset device address to zero */ reg = dwc3_readl(dwc->regs, DWC3_DCFG); |