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pinctrl: ingenic: Implement .get_direction for GPIO chips
This allows to read from debugfs whether the GPIOs requested are set as input or output. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -699,6 +699,21 @@ static inline bool ingenic_get_pin_config(struct ingenic_pinctrl *jzpc,
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return val & BIT(idx);
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}
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static int ingenic_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
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{
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struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
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struct ingenic_pinctrl *jzpc = jzgc->jzpc;
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unsigned int pin = gc->base + offset;
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if (jzpc->version >= ID_JZ4770)
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return ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PAT1);
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if (ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_SELECT))
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return true;
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return !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_DIR);
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}
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static const struct pinctrl_ops ingenic_pctlops = {
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.get_groups_count = pinctrl_generic_get_group_count,
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.get_group_name = pinctrl_generic_get_group_name,
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@ -1003,6 +1018,7 @@ static int __init ingenic_gpio_probe(struct ingenic_pinctrl *jzpc,
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jzgc->gc.get = ingenic_gpio_get;
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jzgc->gc.direction_input = ingenic_gpio_direction_input;
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jzgc->gc.direction_output = ingenic_gpio_direction_output;
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jzgc->gc.get_direction = ingenic_gpio_get_direction;
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if (of_property_read_bool(node, "gpio-ranges")) {
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jzgc->gc.request = gpiochip_generic_request;
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