mirror of https://gitee.com/openkylin/linux.git
d54e9a28ca
The irq/pin mapping is used to lookup the pin to mux to the irq function when the irq is enabled. It is created when gpio_to_irq is called. Creating the mapping during init allows us to map the interrupts directly from the device tree. Originally the IRQ to pin mapping was created when gpio_to_irq was called with a GPIO handle. The mapping in turn is used to mux the pin into EINT mode. If the mapping is created during gpio_to_irq, we can't use the interrupts directly, i.e. through the DT with "interrupts = <&pio A 4>". Instead we'd have to use "gpios = <&pio A B>", then pass the gpio through to gpio_to_irq. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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| Kconfig | ||
| Makefile | ||
| pinctrl-sun4i-a10.c | ||
| pinctrl-sun5i-a10s.c | ||
| pinctrl-sun5i-a13.c | ||
| pinctrl-sun6i-a31-r.c | ||
| pinctrl-sun6i-a31.c | ||
| pinctrl-sun7i-a20.c | ||
| pinctrl-sunxi.c | ||
| pinctrl-sunxi.h | ||