usb: host: Add support for usb core indexing
Unique usb core id is used to differentiate between
different usb controllers.
Change-Id: Ibd886f704e7ecedfbf035b8e5adea2852ddf25bf
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 6cb5ab3..89de903 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -316,6 +316,9 @@
if (device_property_read_u32(sysdev, "snps,xhci-imod-value", &imod))
imod = 0;
+ if (device_property_read_u32(sysdev, "usb-core-id", &xhci->core_id))
+ xhci->core_id = -EINVAL;
+
hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
if (IS_ERR(hcd->usb_phy)) {
ret = PTR_ERR(hcd->usb_phy);