gpio: twl6040: Implement .get_direction()
The gpiolib cannot deduce the fact that every line is output by itself, implement a .get_direction() callback so we can inspect this. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -32,6 +32,12 @@ static int twl6040gpo_get(struct gpio_chip *chip, unsigned offset)
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return !!(ret & BIT(offset));
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}
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static int twl6040gpo_get_direction(struct gpio_chip *chip, unsigned offset)
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{
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/* This means "out" */
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return 0;
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}
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static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned offset,
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int value)
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{
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@ -62,6 +68,7 @@ static struct gpio_chip twl6040gpo_chip = {
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.owner = THIS_MODULE,
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.get = twl6040gpo_get,
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.direction_output = twl6040gpo_direction_out,
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.get_direction = twl6040gpo_get_direction,
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.set = twl6040gpo_set,
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.can_sleep = true,
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};
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