When connection is established non-ss mode, a maxburst is set to 0.
Therefore, the value of burst size has wrong value. We must use the burst size
only in superspeed mode.
Signed-off-by: Chanho Park <chanho61.park@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/usb/dwc3/gadget.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 58fdfad..6516560 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -438,8 +438,14 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
memset(¶ms, 0x00, sizeof(params));
params.param0 = DWC3_DEPCFG_EP_TYPE(usb_endpoint_type(desc))
- | DWC3_DEPCFG_MAX_PACKET_SIZE(usb_endpoint_maxp(desc))
- | DWC3_DEPCFG_BURST_SIZE(dep->endpoint.maxburst - 1);
+ | DWC3_DEPCFG_MAX_PACKET_SIZE(usb_endpoint_maxp(desc));
+
+ /* Burst size is only needed in SuperSpeed mode */
+ if (dwc->gadget.speed == USB_SPEED_SUPER) {
+ u32 burst = dep->endpoint.maxburst - 1;
+
+ params.param0 |= DWC3_DEPCFG_BURST_SIZE(burst);
+ }
params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN
| DWC3_DEPCFG_XFER_NOT_READY_EN;
--
1.7.9.5
--
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