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If EHCI probes first with VBUS already on, a SuperSpeed device falls back to high-speed and stays there. Defer the NS USB2 core until the USB3 core has probed, and enable VBUS only after that host init (of_platform_populate binds xHCI when xhci-plat is already registered). USB2-only chips have no NS USB3 core and are unchanged. Remove the TODO since checks are being added. Assisted-by: LLM Signed-off-by: Rosen Penev --- drivers/usb/host/bcma-hcd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c index 519386255886..9a5704358996 100644 --- a/drivers/usb/host/bcma-hcd.c +++ b/drivers/usb/host/bcma-hcd.c @@ -396,8 +396,13 @@ static int bcma_hcd_probe(struct bcma_device *core) { int err; struct bcma_hcd_device *usb_dev; + struct bcma_device *usb3; - /* TODO: Probably need checks here; is the core connected? */ + if (core->id.id == BCMA_CORE_NS_USB20) { + usb3 = bcma_find_core(core->bus, BCMA_CORE_NS_USB30); + if (usb3 && !bcma_get_drvdata(usb3)) + return -EPROBE_DEFER; + } usb_dev = devm_kzalloc(&core->dev, sizeof(struct bcma_hcd_device), GFP_KERNEL); -- 2.55.0