Re: [PATCH v8 4/4] USB: pci-quirks: Add Raspberry Pi 4 quirk

From: Rob Herring
Date: Thu May 07 2020 - 17:53:01 EST


On Tue, 5 May 2020 18:13:17 +0200, 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
> VideoCore. Inform VideoCore that VL805 was just reset.
>
> Also, as this creates a dependency between USB_PCI and VideoCore's
> firmware interface, and since USB_PCI can't be set as a module neither
> this can. Reflect that on the firmware interface Kconfg.
>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
> ---
>
> Changes since v5:
> - Fix Kconfig issue with allmodconfig
>
> Changes since v4:
> - Do not split up error message
>
> Changes since v3:
> - Add more complete error message
>
> Changes since v1:
> - Make RASPBERRYPI_FIRMWARE dependent on this quirk to make sure it
> gets compiled when needed.
>
> drivers/firmware/Kconfig | 3 ++-
> drivers/usb/host/pci-quirks.c | 16 ++++++++++++++++
> 2 files changed, 18 insertions(+), 1 deletion(-)
>

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>