From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartosz Golaszewski Subject: [PATCH v4 0/7] gpio: mockup: improve the user-space testing interface Date: Thu, 14 Feb 2019 14:42:25 +0100 Message-ID: <20190214134232.3821-1-brgl@bgdev.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Linus Walleij , Thomas Gleixner , Marc Zyngier , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski List-Id: linux-gpio@vger.kernel.org From: Bartosz Golaszewski Hi Marc, another try at the irq_sim stuff. This time I added a notifier chain to irq_sim and made gpio-mockup register a notifier block. This way interested users will get notified about a type config change. v1 -> v2: - instead of providing the irq_sim_get_type() helper, move the irq type logic into the simulator and provide a helper that allows users to specify the type of the fired interrupt v2 -> v3: - switch back to having irq_sim_type() and put the line state logic into the GPIO testing module v3- > v4: - drop irq_sim_get_type() and use a notifier chain instead so that any change in type configuration can be pushed out to interested users - change the locking mechanism in gpio-mockup to a spinlock as we can't take a mutex when a hardirq-safe spinlock in irq_desc is being held when the irq_set_type() callback is called - refuse to set any other type than falling or rising edge in irq_set_config Bartosz Golaszewski (7): irq/irq_sim: add a notifier chain gpio: mockup: add locking gpio: mockup: implement get_multiple() gpio: mockup: don't create the debugfs link named after the label gpio: mockup: change the type of 'offset' to unsigned int gpio: mockup: change the signature of unlocked get/set helpers gpio: mockup: rework debugfs interface drivers/gpio/gpio-mockup.c | 215 ++++++++++++++++++++++++++++++++----- include/linux/irq_sim.h | 22 +++- kernel/irq/irq_sim.c | 40 +++++++ 3 files changed, 246 insertions(+), 31 deletions(-) -- 2.20.1