Re: [PATCH v7 6/7] PCI: rcar-gen4: Add support for r8a779g0

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Hi,

> If Renesas could bother to spend the effort to be legally allowed to
> include the firmware in linux-firmware, do we want to spend the effort
> to maintain the support for this PCIe controller in mainline?

We (including me) have no indication if Renesas bothered or not. Maybe
they tried but could not convince a third party. I don't know.

> Is there even an example of a device driver that *requires* firmware
> that is not in linux-firmware?

Sure thing!

=== snip here

$ cat Documentation/admin-guide/media/opera-firmware.rst
.. SPDX-License-Identifier: GPL-2.0

Opera firmware
==============

Author: Marco Gittler <g.marco@xxxxxxxxxx>

To extract the firmware for the Opera DVB-S1 USB-Box
you need to copy the files:

2830SCap2.sys
2830SLoad2.sys

from the windriver disk into this directory.

Then run:

.. code-block:: none

	scripts/get_dvb_firmware opera1

and after that you have 2 files:

dvb-usb-opera-01.fw
dvb-usb-opera1-fpga-01.fw

in here.

Copy them into /lib/firmware/ .

After that the driver can load the firmware
(if you have enabled firmware loading
in kernel config and have hotplug running).

=== snap

And this is probably not the only driver where you need to get firmware
out of a Windows driver (media drivers and webcam drivers are good
candidates). And the redistribution of such drivers is likely to be
limited as well.

Happy hacking,

   Wolfram

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