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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-12-09 08:43:50 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-12-09 08:43:50 +0100 |
| commit | 5d8dfaa71d87f742c53309b95cb6a8b274119027 (patch) | |
| tree | 83fa5199868fb98dbe7dcb0791bc462bac77265b /Documentation/driver-api/gpio/driver.rst | |
| parent | Input: ff-core - correct magnitude setting for rumble compatibility (diff) | |
| parent | Linux 5.15 (diff) | |
| download | linux-5d8dfaa71d87f742c53309b95cb6a8b274119027.tar.xz linux-5d8dfaa71d87f742c53309b95cb6a8b274119027.zip | |
Merge tag 'v5.15' into next
Sync up with the mainline to get the latest APIs and DT bindings.
Diffstat (limited to 'Documentation/driver-api/gpio/driver.rst')
| -rw-r--r-- | Documentation/driver-api/gpio/driver.rst | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst index d6b0d779859b..bbc53920d4dd 100644 --- a/Documentation/driver-api/gpio/driver.rst +++ b/Documentation/driver-api/gpio/driver.rst @@ -547,13 +547,10 @@ To use the helpers please keep the following in mind: the irqchip can initialize. E.g. .dev and .can_sleep shall be set up properly. -- Nominally set all handlers to handle_bad_irq() in the setup call and pass - handle_bad_irq() as flow handler parameter in gpiochip_irqchip_add() if it is - expected for GPIO driver that irqchip .set_type() callback will be called - before using/enabling each GPIO IRQ. Then set the handler to - handle_level_irq() and/or handle_edge_irq() in the irqchip .set_type() - callback depending on what your controller supports and what is requested - by the consumer. +- Nominally set gpio_irq_chip.handler to handle_bad_irq. Then, if your irqchip + is cascaded, set the handler to handle_level_irq() and/or handle_edge_irq() + in the irqchip .set_type() callback depending on what your controller + supports and what is requested by the consumer. Locking IRQ usage |