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Message-ID: <CACRpkdYvhM53GVLpDp6mHmy+U0kTz2t-yDz5afeXeWTgp=bsXw@mail.gmail.com> Date: Mon, 25 Oct 2021 00:17:44 +0200 From: Linus Walleij <linus.walleij@...aro.org> To: Mauri Sandberg <maukka@....kapsi.fi> Cc: Mauri Sandberg <sandberg@...lfence.com>, Andy Shevchenko <andy.shevchenko@...il.com>, Bartosz Golaszewski <bgolaszewski@...libre.com>, Geert Uytterhoeven <geert+renesas@...der.be>, "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, linux-kernel <linux-kernel@...r.kernel.org>, Drew Fustini <drew@...gleboard.org> Subject: Re: [PATCH v7 2/2] gpio: gpio-cascade: add generic GPIO cascade On Tue, Oct 19, 2021 at 10:10 PM Mauri Sandberg <maukka@....kapsi.fi> wrote: > Adds support for building cascades of GPIO lines. That is, it allows > setups when there is one upstream line and multiple cascaded lines, out > of which one can be chosen at a time. The status of the upstream line > can be conveyed to the selected cascaded line or, vice versa, the status > of the cascaded line can be conveyed to the upstream line. > > A multiplexer is being used to select, which cascaded GPIO line is being > used at any given time. > > At the moment only input direction is supported. In future it should be > possible to add support for output direction, too. > > Signed-off-by: Mauri Sandberg <maukka@....kapsi.fi> > --- > v6 -> v7: This v7 looks like clean and nice merge material to me, Reviewed-by: Linus Walleij <linus.walleij@...aro.org> Yours, Linus Walleij
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