tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
gpio: pl061: implement .get_direction()
Implement this callback so that the driver reports correctly
the direction setting of each line.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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+8
drivers/gpio/gpio-pl061.c
+8
drivers/gpio/gpio-pl061.c
···
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#endif
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};
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static int pl061_get_direction(struct gpio_chip *gc, unsigned offset)
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{
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struct pl061_gpio *chip = gpiochip_get_data(gc);
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return !(readb(chip->base + GPIODIR) & BIT(offset));
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}
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static int pl061_direction_input(struct gpio_chip *gc, unsigned offset)
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{
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struct pl061_gpio *chip = gpiochip_get_data(gc);
···
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chip->gc.free = gpiochip_generic_free;
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}
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chip->gc.get_direction = pl061_get_direction;
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chip->gc.direction_input = pl061_direction_input;
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chip->gc.direction_output = pl061_direction_output;
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chip->gc.get = pl061_get_value;