Re: [PATCH] usb: xhci-pci: Raspberry Pi FW loader for VIA VL805

From: Florian Fainelli
Date: Mon Feb 17 2020 - 15:52:48 EST

On 2/17/2020 2:07 AM, Nicolas Saenz Julienne wrote:
> On the Raspberry Pi 4, after a PCI reset, VL805's firmware may either be
> loaded directly from an EEPROM or, if not present, by the SoC's
> VideCore. Inform VideCore that VL805 was just reset, or defer xhci's
> probe if not yet joinable trough the mailbox interface.
> Based on Tim Gover's downstream implementation.
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>

Would it work if you registered the firmware loading as pci fixup such
that you would not even have to mangle xhci-pci.c at all and all the
logic could be contained within drivers/firmware/raspberrypi.c?