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pinctrl/gpio: non-linear GPIO ranges accesible from gpiolib

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This patch adds the infrastructure required to register non-linear gpio
ranges through gpiolib and the standard GPIO device tree bindings.

Signed-off-by: Christian Ruppert <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Christian Ruppert 2013-10-15 15:37:54 +02:00 • committed by Linus Walleij
commit 586a87e6ed
7 changed files with 177 additions and 10 deletions
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14
drivers/pinctrl/core.c
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@ -462,6 +462,20 @@ struct pinctrl_dev *pinctrl_find_and_add_gpio_range(const char *devname,
}
EXPORT_SYMBOL_GPL(pinctrl_find_and_add_gpio_range);
int pinctrl_get_group_pins(struct pinctrl_dev *pctldev, const char *pin_group,
const unsigned **pins, unsigned *num_pins)
{
const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
int gs;
gs = pinctrl_get_group_selector(pctldev, pin_group);
if (gs < 0)
return gs;
return pctlops->get_group_pins(pctldev, gs, pins, num_pins);
}
EXPORT_SYMBOL_GPL(pinctrl_get_group_pins);
/**
* pinctrl_find_gpio_range_from_pin() - locate the GPIO range for a pin
* @pctldev: the pin controller device to look in