From 2fc6d4be35fb1e262f209758e25bfe2b7a113a7f Mon Sep 17 00:00:00 2001
From: Felipe Balbi <felipe.balbi@linux.intel.com>
Date: Wed, 1 Aug 2018 09:37:34 +0300
Subject: [PATCH] usb: dwc3: gadget: fix ISOC TRB type on unaligned transfers
Git-commit: 2fc6d4be35fb1e262f209758e25bfe2b7a113a7f
Patch-mainline: v4.20-rc4
References: bsc#1051510
When chaining ISOC TRBs together, only the first ISOC TRB should be of
type ISOC_FIRST, all others should be of type ISOC. This patch fixes
that.
Fixes: c6267a51639b ("usb: dwc3: gadget: align transfers to wMaxPacketSize")
Cc: <stable@vger.kernel.org> # v4.11+
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/usb/dwc3/gadget.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 06e22afdf3d1..9faad896b3a1 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1081,7 +1081,7 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep,
/* Now prepare one extra TRB to align transfer size */
trb = &dep->trb_pool[dep->trb_enqueue];
__dwc3_prepare_one_trb(dep, trb, dwc->bounce_addr,
- maxp - rem, false, 0,
+ maxp - rem, false, 1,
req->request.stream_id,
req->request.short_not_ok,
req->request.no_interrupt);
@@ -1125,7 +1125,7 @@ static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep,
/* Now prepare one extra TRB to align transfer size */
trb = &dep->trb_pool[dep->trb_enqueue];
__dwc3_prepare_one_trb(dep, trb, dwc->bounce_addr, maxp - rem,
- false, 0, req->request.stream_id,
+ false, 1, req->request.stream_id,
req->request.short_not_ok,
req->request.no_interrupt);
} else if (req->request.zero && req->request.length &&
@@ -1141,7 +1141,7 @@ static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep,
/* Now prepare one extra TRB to handle ZLP */
trb = &dep->trb_pool[dep->trb_enqueue];
__dwc3_prepare_one_trb(dep, trb, dwc->bounce_addr, 0,
- false, 0, req->request.stream_id,
+ false, 1, req->request.stream_id,
req->request.short_not_ok,
req->request.no_interrupt);
} else {
--
2.19.1