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usb: dwc3: gadget: Check IP revision for GRXTHRCFG 

DWC_usb31 controller has a different UsbRxPktCnt bit fields from
GRXTHRCFG register. Check for DWC_usb31 IP revision to read the
appropriate value.

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Thinh Nguyen 2018-03-16 15:34:13 -07:00 committed by Felipe Balbi
parent 2fbc5bdc8f
commit 01b0e2cc7d
1 changed files with 5 additions and 1 deletions
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6
drivers/usb/dwc3/gadget.c
View File

@ -1858,7 +1858,11 @@ static int __dwc3_gadget_start(struct dwc3 *dwc)
* bursts of data without going through any sort of endpoint throttling.
*/
reg = dwc3_readl(dwc->regs, DWC3_GRXTHRCFG);
reg &= ~DWC3_GRXTHRCFG_PKTCNTSEL;
if (dwc3_is_usb31(dwc))
reg &= ~DWC31_GRXTHRCFG_PKTCNTSEL;
else
reg &= ~DWC3_GRXTHRCFG_PKTCNTSEL;
dwc3_writel(dwc->regs, DWC3_GRXTHRCFG, reg);
dwc3_gadget_setup_nump(dwc);