Re: [PATCH v4 1/3] usb: core: hcd: Add support for deferring roothub registration

[Alan Stern]

On Thu, Sep 09, 2021 at 12:11:58PM +0530, Kishon Vijay Abraham I wrote:
> It has been observed with certain PCIe USB cards (like Inateck connected
> to AM64 EVM or J7200 EVM) that as soon as the primary roothub is
> registered, port status change is handled even before xHC is running
> leading to cold plug USB devices not detected. For such cases, registering
> both the root hubs along with the second HCD is required. Add support for
> deferring roothub registration in usb_add_hcd(), so that both primary and
> secondary roothubs are registered along with the second HCD.
> 
> CC: stable@xxxxxxxxxxxxxxx # 5.4+
> Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> Suggested-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
> Tested-by: Chris Chiu <chris.chiu@xxxxxxxxxxxxx>
> ---

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>