* [v3,06/15] usb: dwc3: gadget: Check IP revision for GRXTHRCFG
@ 2018-01-18 1:55 Thinh Nguyen
0 siblings, 0 replies; only message in thread
From: Thinh Nguyen @ 2018-01-18 1:55 UTC (permalink / raw)
To: Felipe Balbi, Thinh Nguyen, linux-usb; +Cc: John Youn
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>
---
drivers/usb/dwc3/gadget.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 0bbc21ab6912..24cbd79481e8 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -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);
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2018-01-18 1:55 [v3,06/15] usb: dwc3: gadget: Check IP revision for GRXTHRCFG Thinh Nguyen
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