Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1570752

Re: [PATCH 0/7] gpio: mockup: extensions for testing purposes

From Linus Walleij <linus.walleij@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH 0/7] gpio: mockup: extensions for testing purposes
Date 2017-01-31 14:40 +0100
Message-ID <t5GP8-1fU-23@gated-at.bofh.it> (permalink)
References <t3xPX-3w9-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Wed, Jan 25, 2017 at 4:34 PM, Bartosz Golaszewski
<bgolaszewski@baylibre.com> wrote:

> This series proposes to extend the gpio framework by allowing to
> inject line events from the kernel code and by providing a debugfs
> interface for that to the gpio-mockup driver. We also allow the
> user to request that the mockup driver name the lines.

I sympathize fully with the goal and intentions of the series, I
agree: this is awesome to have for testing and validation of
GPIO.

I'm reluctant about the changes to gpiolib and want to make that
code as optional as possible, definately #ifdef if nothing else
works. Otherwise the memory footprint people will get me for this,
haha. ;)

The absolutely best would be if the driver could inject "real"
irqs and also exercise the gpiolib irqchip helpers. I have been
vaguely thinking that sofware interrupts should be able to do this
but I'm not very versed in that kind of stuff.

The changes to gpio-mockup.c are entirely uncontroversial, it
is for testing so I'm willing to accept almost anything if it looks
maintainable and helps in testing.

Yours,
Linus Walleij

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

Re: [PATCH 0/7] gpio: mockup: extensions for testing purposes Linus Walleij <linus.walleij@linaro.org> - 2017-01-31 14:40 +0100
  Re: [PATCH 0/7] gpio: mockup: extensions for testing purposes Bartosz Golaszewski <bgolaszewski@baylibre.com> - 2017-01-31 15:10 +0100
    Re: [PATCH 0/7] gpio: mockup: extensions for testing purposes Lars-Peter Clausen <lars@metafoo.de> - 2017-01-31 15:20 +0100
      Re: [PATCH 0/7] gpio: mockup: extensions for testing purposes Bartosz Golaszewski <bgolaszewski@baylibre.com> - 2017-01-31 15:30 +0100

csiph-web