From: Felipe Balbi <balbi@xxxxxxxxxx>
Now that we have a broken pe quirk flag, dwc3
can tell XHCI core about it.
Signed-off-by: Felipe Balbi <balbi@xxxxxxxxxx>
Signed-off-by: Sekhar Nori <nsekhar@xxxxxx>
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
drivers/usb/dwc3/host.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index c679f63..db9347b 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -51,6 +51,18 @@ int dwc3_host_init(struct dwc3 *dwc)
pdata.usb3_lpm_capable = dwc->usb3_lpm_capable;
+ /**
+ * WORKAROUND: dwc3 revisions <=3.00a have a limitation
+ * where Port Disable command doesn't work.
+ *
+ * The suggested workaround is that we avoid Port Disable
+ * completely.
+ *
+ * This following flag tells XHCI to do just that.
+ */
+ if (dwc->revision <= DWC3_REVISION_300A)
+ pdata.quirk_port_broken_pe = true;
+
ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
if (ret) {
dev_err(dwc->dev, "couldn't add platform data to xHCI device\n");
--
2.5.0
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