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Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller

From Andreas Werner <andy@wernerandy.de>
Newsgroups linux.kernel
Subject Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller
Date 2015-10-08 21:50 +0200
Message-ID <qhpmq-4KO-7@gated-at.bofh.it> (permalink)
References <qgimZ-6vn-3@gated-at.bofh.it> <qgv0T-7Vp-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Yet another thing.

if i will implement the open drain support, does it really makes sense to go with the
generic gpio lib?

I need to replace the direction_input and direction_outpu functions
because if the userland set an open drain pin to input i need to
set the pin to High-Z (driver "1") instead of setting the input bit
in the direction register.

So at the end there are just the "set" and "dat"
functions used to drive an output and to get an input state.
Alle other functions needs to be implemented in the driver.

Regards
Andy
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Thread

Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller Linus Walleij <linus.walleij@linaro.org> - 2015-10-06 09:40 +0200
  Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller Andreas Werner <andy@wernerandy.de> - 2015-10-06 20:00 +0200
  Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller Andreas Werner <andy@wernerandy.de> - 2015-10-08 19:00 +0200
    Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller Linus Walleij <linus.walleij@linaro.org> - 2015-10-16 22:00 +0200
  Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller Andreas Werner <andy@wernerandy.de> - 2015-10-08 21:50 +0200
    Re: [PATCH] gpio: Add driver for MEN 16Z127 GPIO controller Linus Walleij <linus.walleij@linaro.org> - 2015-10-16 22:00 +0200

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