linux-kernel - Re: [PATCH v2 6/6] ARM: tegra_defconfig: Enable options useful for Nexus 7 and Acer A500

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Date:   Tue, 7 Apr 2020 20:37:34 -0400
From:   Peter Geis <pgwipeout@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        David Heidelberg <david@...t.cz>,
        Stephen Warren <swarren@...dotorg.org>,
        Nicolas Chauvet <kwizart@...il.com>,
        Pedro Ângelo <pangelo@...d.io>,
        Matt Merhar <mattmerhar@...tonmail.com>,
        linux-tegra@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/6] ARM: tegra_defconfig: Enable options useful for
 Nexus 7 and Acer A500

On Tue, Apr 7, 2020 at 12:38 PM Dmitry Osipenko <digetx@...il.com> wrote:
>
> 07.04.2020 13:08, Thierry Reding пишет:
> > On Mon, Apr 06, 2020 at 10:41:10PM +0300, Dmitry Osipenko wrote:
> >> Enable several drivers for hardware that is found on Nexus 7 and Acer A500
> >> tablet devices. Please note that some drivers may require firmware files
> >> extracted from original Android image.
> >>
> >> Link: https://github.com/digetx/linux-firmware
> >
> > What's the license for these files?
>
> It's either GPL (like touchscreen config) or something else
> redistributeable.
>
> > Can they be made available through the official linux-firmware repository?
>
> Yes, but I don't know yet for sure whether it's really needed for all
> firmware files.
>
> For example, the T30 Broadcom WiFi doesn't work using stock
> linux-firmware, it's on my to-do list to try to figure out why.

I've encountered the same issue on the Ouya, only the original
firmware that came with it will work with the chip. (AW-NH660)
I wonder if it's an azurewave quirk.

I've also noticed the Ouya specific configuration txt file seems a lot
more involved than the standard brcm configs.

>
> While Bluetooth FW seems to be reusable be many different devices,
> although (AFAIK) nobody cared to upstream it to the linux-firmware.