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Subject[PATCH v6 0/7] gpio: mockup: improve the user-space testing interface
From: Bartosz Golaszewski <>


as discussed. This is hopefully the last version. The irq_set_type()
callback now only accepts edge triggers.

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

v4 -> v5:
- drop the notifier, use irqd_set_trigger_type() instead

v5 -> v6:
- same as v5, but we're now validating the trigger type and only allow
edge triggers

Bartosz Golaszewski (7):
irq/irq_sim: add irq_set_type() callback
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 | 189 +++++++++++++++++++++++++++++++------
kernel/irq/irq_sim.c | 12 +++
2 files changed, 174 insertions(+), 27 deletions(-)


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