From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752911AbdGSMZY (ORCPT ); Wed, 19 Jul 2017 08:25:24 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:44754 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751233AbdGSMZW (ORCPT ); Wed, 19 Jul 2017 08:25:22 -0400 Date: Wed, 19 Jul 2017 14:25:15 +0200 (CEST) From: Thomas Gleixner To: Bartosz Golaszewski cc: Linus Walleij , Marc Zyngier , Jonathan Corbet , Bamvor Jian Zhang , Jonathan Cameron , Lars-Peter Clausen , linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH 0/3] simulated interrupts In-Reply-To: <1500466814-32679-1-git-send-email-brgl@bgdev.pl> Message-ID: References: <1500466814-32679-1-git-send-email-brgl@bgdev.pl> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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