From: wlf <wulf@rock-chips.com>
Date: Thu, 20 Mar 2014 03:09:39 +0000 (+0800)
Subject: USB: clear chhltd int if NYET/NAK/ACK/other in non-error case.
X-Git-Tag: firefly_0821_release~5983
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=18eae387b1379ca43afb8e622ed5e1d247e79eb8;p=firefly-linux-kernel-4.4.55.git

USB: clear chhltd int if NYET/NAK/ACK/other in non-error case.
---

diff --git a/drivers/usb/dwc_otg_310/dwc_otg_hcd_intr.c b/drivers/usb/dwc_otg_310/dwc_otg_hcd_intr.c
index eb2f573e99a9..dfec664b39ce 100755
--- a/drivers/usb/dwc_otg_310/dwc_otg_hcd_intr.c
+++ b/drivers/usb/dwc_otg_310/dwc_otg_hcd_intr.c
@@ -2039,6 +2039,8 @@ static void handle_hc_chhltd_intr_dma(dwc_otg_hcd_t * hcd,
 	} else {
 		DWC_PRINTF("NYET/NAK/ACK/other in non-error case, 0x%08x\n",
 			   hcint.d32);
+		if(!hcint.b.nyet && !hcint.b.nak  && !hcint.b.ack)
+			clear_hc_int(hc_regs,chhltd);
 	}
 }