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

From: Bartosz Golaszewski
Date: Wed Jan 25 2017 - 10:37:34 EST

I would like to create an automated test-suite for libgpiod, but
the gpio-mockup driver is quite limited when it comes to current
user space functionality - I can't test neither line event
notifications nor finding GPIO lines by name.

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.

The first patch contains only minor clean-ups. Patches 2/7-4/7
implement the in-kernel mechanism for injecting events, while patch
5/7 extends the mockup driver to provide a relevant debugfs interface.

Patch 6/7 adds a new module param allowing to request naming of the

The last patch contains some coding style tweaks.

Bartosz Golaszewski (7):
gpiolib: clean up includes
gpiolib: support monitoring mockup devices
gpio: mockup: set the mockup flag in struct gpio_chip
gpiolib: allow injecting line events
gpio: mockup: implement injecting events over debugfs
gpio: mockup: implement naming the GPIO lines
gpio: mockup: readability tweaks

drivers/gpio/gpio-dwapb.c | 1 -
drivers/gpio/gpio-mockup.c | 147 +++++++++++++++++++++++++++++++++++++----
drivers/gpio/gpio-xgene-sb.c | 1 -
drivers/gpio/gpiolib-acpi.c | 2 -
drivers/gpio/gpiolib-devprop.c | 2 -
drivers/gpio/gpiolib-legacy.c | 3 -
drivers/gpio/gpiolib-of.c | 1 -
drivers/gpio/gpiolib-sysfs.c | 2 -
drivers/gpio/gpiolib.c | 44 +++++++++---
drivers/gpio/gpiolib.h | 5 ++
include/linux/gpio/driver.h | 4 ++
11 files changed, 175 insertions(+), 37 deletions(-)