linux-kernel - [PATCH V6 04/10] usb: dwc3: update stream id in depcmd

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Date:   Sat, 13 Oct 2018 18:44:51 +0530
From:   Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Johan Hovold <johan@...nel.org>,
        Jaejoong Kim <climbbb.kim@...il.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Roger Quadros <rogerq@...com>
CC:     <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <v.anuragkumar@...il.com>, Thinh Nguyen <thinhn@...opsys.com>,
        Tejas Joglekar <tejas.joglekar@...opsys.com>,
        Ajay Yugalkishore Pandey <APANDEY@...inx.com>,
        Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
Subject: [PATCH V6 04/10] usb: dwc3: update stream id in depcmd

For stream capable endpoints, stream id related information
needs to be updated into DEPCMD while issuing START TRANSFER.
This patch does the same.

Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
---
 Changes in v6:
	1. Used dep->endpoint.stream_capable instead of dep->stream_capable
	   flag

 Changes in v5:
	1. None

 Changes in v4:
	1. None

 Changes in v3:
	1. None

 Changes in v2:
	1. None
---
 drivers/usb/dwc3/gadget.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index ac752d4..862ec5a 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1225,6 +1225,9 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep)
 		params.param1 = lower_32_bits(req->trb_dma);
 		cmd = DWC3_DEPCMD_STARTTRANSFER;
 
+		if (dep->endpoint.stream_capable)
+			cmd |= DWC3_DEPCMD_PARAM(req->request.stream_id);
+
 		if (usb_endpoint_xfer_isoc(dep->endpoint.desc))
 			cmd |= DWC3_DEPCMD_PARAM(dep->frame_number);
 	} else {
-- 
2.1.1