Linux GPIO subsystem development
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From: Thomas Gleixner <tglx@linutronix.de>
To: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>,
	Jonathan Cameron <jic23@kernel.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
	linux-doc@vger.kernel.org
Subject: Re: [PATCH 0/3] simulated interrupts
Date: Wed, 19 Jul 2017 14:25:15 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.20.1707191424190.2286@nanos> (raw)
In-Reply-To: <1500466814-32679-1-git-send-email-brgl@bgdev.pl>

On Wed, 19 Jul 2017, Bartosz Golaszewski wrote:

> Some frameworks (e.g. iio, gpiolib) use irq_work to implement simulated
> interrupts that can be 'fired' from process context when needed and
> requested just like normal interrupts. This is useful for testing and
> development purposes.
> 
> Currently this code is reimplemented by every user. This series
> proposes to add a new set of functions that can be used by drivers
> that want to simulate interrupts without having to duplicate any
> boilerplate code.
> 
> The first patch adds a simple irq simulator framework. The second
> extends it with resource management. The third uses the new
> functionality in the gpio-mockup testing driver.
> 
> NOTE: The next candidate for using this API would be iio-dummy-evgen.

I like the general idea - have not looked at the code yet. Just a quick
question: How many copies/variants of this scheme do we have in tree?

Thanks,

	tglx

  parent reply	other threads:[~2017-07-19 12:25 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-19 12:20 [PATCH 0/3] simulated interrupts Bartosz Golaszewski
2017-07-19 12:20 ` [PATCH 1/3] irq/irq_sim: add a simple interrupt simulator framework Bartosz Golaszewski
2017-07-22 20:59   ` Jonathan Cameron
2017-07-24  6:54     ` Bartosz Golaszewski
2017-07-24  7:31   ` Lars-Peter Clausen
2017-07-19 12:20 ` [PATCH 2/3] irq/irq_sim: add a devres variant of irq_sim_init() Bartosz Golaszewski
2017-07-19 12:20 ` [PATCH 3/3] gpio: mockup: use irq_sim Bartosz Golaszewski
2017-08-02 11:34   ` Linus Walleij
2017-07-19 12:25 ` Thomas Gleixner [this message]
2017-07-19 12:44   ` [PATCH 0/3] simulated interrupts Bartosz Golaszewski
2017-07-19 13:58     ` Thomas Gleixner
2017-07-19 14:19       ` Marc Zyngier
2017-07-19 14:43         ` Andy Shevchenko
2017-07-19 14:53           ` Thomas Gleixner
2017-07-19 15:28             ` Andy Shevchenko
2017-08-02 11:32         ` Linus Walleij

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