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From: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
To: Andy Shevchenko <andy.shevchenko@gmail.com>,
	Mauri Sandberg <maukka@ext.kapsi.fi>
Cc: Mauri Sandberg <sandberg@mailfence.com>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Linus Walleij <linus.walleij@linaro.org>,
	"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	devicetree <devicetree@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Drew Fustini <drew@beagleboard.org>
Subject: Re: [PATCH v5 2/2] gpio: gpio-cascade: add generic GPIO cascade
Date: Mon, 21 Jun 2021 20:31:44 +0200	[thread overview]
Message-ID: <8d28463e-7a67-229a-6934-e3a59a8ab330@metux.net> (raw)
In-Reply-To: <CAHp75VcjGpveAHNAW7Xf7d_Zf6LGSSyD6+qBiF9xxvb+EKs3tg@mail.gmail.com>

On 21.06.21 19:43, Andy Shevchenko wrote:

> Since in parallel there is a discussion about the virtio-gpio
> interface, how will this work with it?

Haven't really understood what this is actually doing. A multiplexer
where only external line is connected to some actual gpio at a time ?
Or does it merge multiple inputs into one (eg. logical OR) ?

Is that about real hardware mux chips or just a software only ?

What is the actual use case ?

For now, I don't see any relation to virtio-gpio. Correct me if I'm
wrong.


--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287

  reply	other threads:[~2021-06-21 18:32 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210325122832.119147-1-sandberg@mailfence.com>
2021-05-30 16:13 ` [PATCH v4 0/2] gpio: add generic gpio input multiplexer Mauri Sandberg
2021-05-30 16:13   ` [PATCH v4 1/2] dt-bindings: gpio-mux-input: add documentation Mauri Sandberg
2021-06-01 10:10     ` Linus Walleij
2021-06-01 10:44     ` Linus Walleij
2021-06-02  9:31       ` Mauri Sandberg
2021-06-02 10:35         ` Linus Walleij
2021-06-02 11:21           ` Mauri Sandberg
2021-06-04  7:51             ` Linus Walleij
2021-06-01 13:32     ` Rob Herring
2021-06-02 11:36       ` Mauri Sandberg
2021-05-30 16:13   ` [PATCH v4 2/2] gpio: gpio-mux-input: add generic gpio input multiplexer Mauri Sandberg
2021-05-30 18:09     ` Andy Shevchenko
2021-05-30 19:02       ` Mauri Sandberg
2021-05-30 19:38         ` Andy Shevchenko
2021-05-31 10:19           ` Mauri Sandberg
2021-06-01 10:38     ` Linus Walleij
2021-06-21 17:20 ` [PATCH v5 0/2] gpio: add generic gpio cascade Mauri Sandberg
2021-06-21 17:20   ` [PATCH v5 1/2] dt-bindings: gpio-cascade: add documentation Mauri Sandberg
2021-06-24 18:30     ` Rob Herring
2021-06-21 17:20   ` [PATCH v5 2/2] gpio: gpio-cascade: add generic GPIO cascade Mauri Sandberg
2021-06-21 17:43     ` Andy Shevchenko
2021-06-21 18:31       ` Enrico Weigelt, metux IT consult [this message]
2021-10-15 12:56       ` Mauri Sandberg
2021-10-15 17:20         ` Andy Shevchenko
2021-10-19 12:57 ` [PATCH v6 0/2] " Mauri Sandberg
2021-10-19 12:57   ` [PATCH v6 1/2] dt-bindings: gpio-cascade: add documentation Mauri Sandberg
2021-10-19 12:57   ` [PATCH v6 2/2] gpio: gpio-cascade: add generic GPIO cascade Mauri Sandberg
2021-10-19 13:12     ` Andy Shevchenko
2021-10-19 20:08 ` [PATCH v7 0/2] " Mauri Sandberg
2021-10-19 20:08   ` [PATCH v7 1/2] dt-bindings: gpio-cascade: add documentation Mauri Sandberg
2021-10-24 22:18     ` Linus Walleij
2021-10-19 20:08   ` [PATCH v7 2/2] gpio: gpio-cascade: add generic GPIO cascade Mauri Sandberg
2021-10-24 22:17     ` Linus Walleij
2021-10-25  9:29     ` Andy Shevchenko
2021-10-26 19:15 ` [PATCH v8 0/2] " Mauri Sandberg
2021-10-26 19:15   ` [PATCH v8 1/2] dt-bindings: gpio-cascade: add documentation Mauri Sandberg
2021-10-26 19:15   ` [PATCH v8 2/2] gpio: gpio-cascade: add generic GPIO cascade Mauri Sandberg
2022-02-05 21:59 ` [RESEND v8 0/2] " Mauri Sandberg
2022-02-05 21:59   ` [RESEND v8 1/2] dt-bindings: gpio-cascade: add documentation Mauri Sandberg
2022-02-05 21:59   ` [RESEND v8 2/2] gpio: gpio-cascade: add generic GPIO cascade Mauri Sandberg

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