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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 <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Christian Ruppert
2013-10-15 15:37:54 +02:00
committed by Linus Walleij
parent c8ce878206
commit 586a87e6ed
7 changed files with 176 additions and 9 deletions
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10
include/linux/gpio.h
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@@ -80,6 +80,7 @@ static inline int irq_to_gpio(unsigned int irq)
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/bug.h>
#include <linux/pinctrl/pinctrl.h>
struct device;
struct gpio_chip;
@@ -220,6 +221,15 @@ gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
return -EINVAL;
}
static inline int
gpiochip_add_pingroup_range(struct gpio_chip *chip,
struct pinctrl_dev *pctldev,
unsigned int gpio_offset, const char *pin_group)
{
WARN_ON(1);
return -EINVAL;
}
static inline void
gpiochip_remove_pin_ranges(struct gpio_chip *chip)
{