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Commit 4b345c9a authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: gadget: set Ignore Sequence Number bit from ConnectDone Event 



Databook says we should set Ignore Sequence Number bit
from ConnectDone Event, so let's do so.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 0d7614f0

drivers/usb/dwc3/gadget.c

+13 −8
Original line number Diff line number Diff line
@@ -431,7 +431,8 @@ static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep) 


static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,

		const struct usb_endpoint_descriptor *desc,

		const struct usb_ss_ep_comp_descriptor *comp_desc)

		const struct usb_ss_ep_comp_descriptor *comp_desc,

		bool ignore)

{

	struct dwc3_gadget_ep_cmd_params params;
@@ -441,6 +442,9 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep, 
		| DWC3_DEPCFG_MAX_PACKET_SIZE(usb_endpoint_maxp(desc))

		| DWC3_DEPCFG_BURST_SIZE(dep->endpoint.maxburst - 1);



	if (ignore)

		params.param0 |= DWC3_DEPCFG_IGN_SEQ_NUM;



	params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN

		| DWC3_DEPCFG_XFER_NOT_READY_EN;
@@ -498,7 +502,8 @@ static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep) 
 */

static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,

		const struct usb_endpoint_descriptor *desc,

		const struct usb_ss_ep_comp_descriptor *comp_desc)

		const struct usb_ss_ep_comp_descriptor *comp_desc,

		bool ignore)

{

	struct dwc3		*dwc = dep->dwc;

	u32			reg;
@@ -510,7 +515,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, 
			return ret;

	}



	ret = dwc3_gadget_set_ep_config(dwc, dep, desc, comp_desc);

	ret = dwc3_gadget_set_ep_config(dwc, dep, desc, comp_desc, ignore);

	if (ret)

		return ret;
@@ -683,7 +688,7 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep, 
	dev_vdbg(dwc->dev, "Enabling %s\n", dep->name);



	spin_lock_irqsave(&dwc->lock, flags);

	ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc);

	ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc, false);

	spin_unlock_irqrestore(&dwc->lock, flags);



	return ret;
@@ -1518,14 +1523,14 @@ static int dwc3_gadget_start(struct usb_gadget *g, 
	dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);



	dep = dwc->eps[0];

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false);

	if (ret) {

		dev_err(dwc->dev, "failed to enable %s\n", dep->name);

		goto err0;

	}



	dep = dwc->eps[1];

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false);

	if (ret) {

		dev_err(dwc->dev, "failed to enable %s\n", dep->name);

		goto err1;
@@ -2141,14 +2146,14 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) 
	}



	dep = dwc->eps[0];

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, true);

	if (ret) {

		dev_err(dwc->dev, "failed to enable %s\n", dep->name);

		return;

	}



	dep = dwc->eps[1];

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);

	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, true);

	if (ret) {

		dev_err(dwc->dev, "failed to enable %s\n", dep->name);

		return;