diff options
| author | Hemant Kumar <hemantk@codeaurora.org> | 2017-08-18 16:40:58 -0700 |
|---|---|---|
| committer | Ajay Agarwal <ajaya@codeaurora.org> | 2017-11-24 14:50:11 +0530 |
| commit | 03a86f5cb1adaa2e30a70eefd7bc1ab9509eea46 (patch) | |
| tree | db60032fbe17831a7d5b4734ebcef7846f9a4542 /drivers/usb | |
| parent | d33ed6b2cc80c5bbe156a1c3efb101f564a4e6ef (diff) | |
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>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 4 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index c6998f086e12..be72953f9737 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -233,6 +233,10 @@ static int xhci_plat_probe(struct platform_device *pdev) hcd_to_bus(xhci->shared_hcd)->skip_resume = true; + if (device_property_read_u32(pdev->dev.parent, "usb-core-id", + &xhci->core_id)) + xhci->core_id = -EINVAL; + hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0); if (IS_ERR(hcd->usb_phy)) { ret = PTR_ERR(hcd->usb_phy); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index c665806983be..f583cefecee0 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1519,6 +1519,8 @@ struct xhci_hcd { /* secondary interrupter */ struct xhci_intr_reg __iomem **sec_ir_set; + int core_id; + /* Cached register copies of read-only HC data */ __u32 hcs_params1; __u32 hcs_params2; |