gpio: pcf857x: Switch to use gpiolib irqchip helpers

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Switch the PCF857x GPIO driver to use the gpiolib irqchip helpers.
This driver uses a nested threaded interrupt, hence handle_nested_irq()
and gpiochip_set_chained_irqchip() must be used.

Note that this removes the checks added in commit 21fd3cd187
("gpio: pcf857x: call the gpio user handler iff gpio_to_irq is done"),
as the interrupt mappings are no longer created on-demand by the driver,
but by gpiochip_irqchip_add() during initialization.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Geert Uytterhoeven 2015-02-05 16:49:08 +01:00 • committed by Linus Walleij

parent 6b516a1093

commit a39294bdf4

2 changed files with 28 additions and 94 deletions

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1

drivers/gpio/Kconfig

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121

drivers/gpio/gpio-pcf857x.c

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