From: Linus Walleij <linus.walleij@linaro.org>
To: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
"Enrico Weigelt, metux IT consult" <info@metux.net>,
Viresh Kumar <vireshk@kernel.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Bill Mills <bill.mills@linaro.org>,
"Alex Benn?e" <alex.bennee@linaro.org>,
stratos-dev@op-lists.linaro.org,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Stefan Hajnoczi <stefanha@redhat.com>,
"Stefano Garzarella --cc virtualization @ lists .
linux-foundation . org" <sgarzare@redhat.com>,
virtualization@lists.linux-foundation.org,
Alistair Strachan <astrachan@google.com>
Subject: Re: [PATCH V3 1/3] gpio: Add virtio-gpio driver
Date: Fri, 18 Jun 2021 11:13:57 +0200 [thread overview]
Message-ID: <CACRpkda9g5JJyroTWi4C=2+YCABhKTyxvwvo3C4zGa=+xGWWfg@mail.gmail.com> (raw)
In-Reply-To: <8d58da79-8e54-048b-db89-8c1caaa0320f@metux.net>
On Wed, Jun 16, 2021 at 5:52 PM Enrico Weigelt, metux IT consult
<lkml@metux.net> wrote:
> On 16.06.21 05:30, Bjorn Andersson wrote:
>
> > Combined with the virtio-i2c effort this could provide an alternative by
> > simply tunneling the busses and GPIOs into Linux and use standard iio
> > drivers, for cases where this suits your product requirements better.
>
> So, you wanna use virtio as logical interface between the two CPUs ?
> Interesting idea. Usually folks use rpmsg for those things.
rpmsg is using shared memory as transport mechanism and virtio
is providing this. rpmsg is conceptually a child of virtio: when the
subsystem was proposed by TI Arnd noted that virtio has large
similarities in shared memory transport and as the potential reuse
for buffer handling etc was excellent virtio was used as
a base for rpmsg/remoteproc work.
Yours,
Linus Walleij
next prev parent reply other threads:[~2021-06-18 9:14 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 12:09 [PATCH V3 0/3] gpio: Add virtio based driver Viresh Kumar
2021-06-10 12:16 ` [PATCH V3 1/3] gpio: Add virtio-gpio driver Viresh Kumar
2021-06-10 13:22 ` Arnd Bergmann
2021-06-10 16:00 ` Enrico Weigelt, metux IT consult
[not found] ` <01000179f6a7715c-cd106846-7770-4088-bb7c-a696bfcbf83e-000000@email.amazonses.com>
2021-06-10 17:03 ` [Stratos-dev] " Jean-Philippe Brucker
2021-06-10 19:41 ` Arnd Bergmann
2021-06-14 10:21 ` Viresh Kumar
2021-06-14 12:31 ` Arnd Bergmann
2021-06-14 12:49 ` Vincent Guittot
[not found] ` <0100017a0a9264cc-57668c56-fdbf-412a-9f82-9bf95f5c653e-000000@email.amazonses.com>
2021-06-14 12:58 ` [Stratos-dev] " Arnd Bergmann
2021-06-14 13:24 ` Vincent Guittot
2021-06-14 20:54 ` Arnd Bergmann
2021-06-15 7:30 ` Vincent Guittot
2021-06-10 15:54 ` Enrico Weigelt, metux IT consult
2021-06-10 16:57 ` Viresh Kumar
2021-06-10 20:46 ` Linus Walleij
2021-06-11 3:56 ` Viresh Kumar
2021-06-11 7:42 ` Geert Uytterhoeven
2021-06-11 8:01 ` Viresh Kumar
2021-06-11 8:22 ` Geert Uytterhoeven
2021-06-15 11:15 ` Viresh Kumar
2021-06-15 11:37 ` Geert Uytterhoeven
2021-06-15 20:03 ` Linus Walleij
2021-06-16 1:45 ` Viresh Kumar
2021-06-14 8:07 ` Enrico Weigelt, metux IT consult
2021-06-14 8:12 ` Andy Shevchenko
2021-06-14 9:14 ` Viresh Kumar
2021-06-14 9:17 ` Enrico Weigelt, metux IT consult
2021-06-14 9:52 ` Viresh Kumar
2021-06-14 9:12 ` Viresh Kumar
2021-06-14 9:29 ` Enrico Weigelt, metux IT consult
2021-06-14 8:03 ` Enrico Weigelt, metux IT consult
2021-06-14 9:24 ` Viresh Kumar
2021-06-16 3:30 ` Bjorn Andersson
2021-06-16 15:52 ` Enrico Weigelt, metux IT consult
2021-06-18 9:13 ` Linus Walleij [this message]
2021-06-21 17:25 ` Bjorn Andersson
2021-06-10 12:16 ` [PATCH V3 2/3] gpio: virtio: Add IRQ support Viresh Kumar
2021-06-10 21:30 ` Linus Walleij
2021-06-14 7:08 ` Viresh Kumar
2021-06-10 12:16 ` [PATCH V3 3/3] MAINTAINERS: Add entry for Virtio-gpio Viresh Kumar
[not found] ` <01000179f5da7763-2ea817c6-e176-423a-952e-de02443f71e2-000000@email.amazonses.com>
2021-06-10 17:40 ` [PATCH V3 1/3] gpio: Add virtio-gpio driver Jean-Philippe Brucker
2021-06-11 3:39 ` Viresh Kumar
[not found] ` <01000179f9276678-ae2bb25f-4c0c-4176-b906-650c585b9753-000000@email.amazonses.com>
2021-06-11 8:34 ` [Stratos-dev] " Arnd Bergmann
2021-06-14 5:26 ` Viresh Kumar
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