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b07ddcdcb2
busses like i2c, spi and so on can parse the virq of their subnode automatically by irq_of_parse_and_map(). for example, i2c will do that in of_i2c_register_devices(). people can put hwirq number attached to a gpio controller in dts, and drivers can directly request the parsed virq. for example, for an i2c client as below, tangoc-ts@5c{ compatible = "pixcir,tangoc-ts"; interrupt-parent = <&gpio>; interrupts = <3 0>; reg = <0x5c>; }; in i2c client probe(), it will request_irq(client->irq, ...) without calling gpio_direction_input(). so here when we set irq type, we also put the pin to input direction. Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Makefile | ||
pinctrl-atlas6.c | ||
pinctrl-prima2.c | ||
pinctrl-sirf.c | ||
pinctrl-sirf.h |