From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Date: Fri, 16 Mar 2018 22:34:00 +0000 (-0700)
Subject: usb: dwc3: Check IP revision for GTXFIFOSIZ
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d548a61767fad7a0e6d89b118daeed2f5b8a8c2f;p=openwrt%2Fstaging%2Fblogic.git

usb: dwc3: Check IP revision for GTXFIFOSIZ

DWC_usb31 controller has different GTXFIFOSIZE bit field for TXFDEF.
Check for DWC_usb31 IP revision to read the appropriate bit fields.

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
---

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 7c3a6e4ea2a6..1431a88437af 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2118,7 +2118,10 @@ static int dwc3_gadget_init_endpoints(struct dwc3 *dwc, u8 total)
 			mdwidth /= 8;
 
 			size = dwc3_readl(dwc->regs, DWC3_GTXFIFOSIZ(num));
-			size = DWC3_GTXFIFOSIZ_TXFDEF(size);
+			if (dwc3_is_usb31(dwc))
+				size = DWC31_GTXFIFOSIZ_TXFDEF(size);
+			else
+				size = DWC3_GTXFIFOSIZ_TXFDEF(size);
 
 			/* FIFO Depth is in MDWDITH bytes. Multiply */
 			size *= mdwidth;