gpio: vr41xx: Delete vr41xx_gpio_pullupdown() callback
This API is not used anywhere in the kernel and has remained unused for years after being introduced. Over time, we have developed a subsystem to deal with pin control and this now managed pull up/down. Delete the old and unused API. If this platform needs it, we should implement a proper pin controller for it instead. Cc: Yoichi Yuasa <yuasa@linux-mips.org> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
parent
2abfb31410
commit
2ab4a93980
|
@ -51,12 +51,4 @@ typedef enum {
|
|||
|
||||
extern void vr41xx_set_irq_level(unsigned int pin, irq_level_t level);
|
||||
|
||||
typedef enum {
|
||||
GPIO_PULL_DOWN,
|
||||
GPIO_PULL_UP,
|
||||
GPIO_PULL_DISABLE,
|
||||
} gpio_pull_t;
|
||||
|
||||
extern int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull);
|
||||
|
||||
#endif /* __NEC_VR41XX_GIU_H */
|
||||
|
|
|
@ -371,44 +371,6 @@ static int giu_set_direction(struct gpio_chip *chip, unsigned pin, int dir)
|
|||
return 0;
|
||||
}
|
||||
|
||||
int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull)
|
||||
{
|
||||
u16 reg, mask;
|
||||
unsigned long flags;
|
||||
|
||||
if ((giu_flags & GPIO_HAS_PULLUPDOWN_IO) != GPIO_HAS_PULLUPDOWN_IO)
|
||||
return -EPERM;
|
||||
|
||||
if (pin >= 15)
|
||||
return -EINVAL;
|
||||
|
||||
mask = 1 << pin;
|
||||
|
||||
spin_lock_irqsave(&giu_lock, flags);
|
||||
|
||||
if (pull == GPIO_PULL_UP || pull == GPIO_PULL_DOWN) {
|
||||
reg = giu_read(GIUTERMUPDN);
|
||||
if (pull == GPIO_PULL_UP)
|
||||
reg |= mask;
|
||||
else
|
||||
reg &= ~mask;
|
||||
giu_write(GIUTERMUPDN, reg);
|
||||
|
||||
reg = giu_read(GIUUSEUPDN);
|
||||
reg |= mask;
|
||||
giu_write(GIUUSEUPDN, reg);
|
||||
} else {
|
||||
reg = giu_read(GIUUSEUPDN);
|
||||
reg &= ~mask;
|
||||
giu_write(GIUUSEUPDN, reg);
|
||||
}
|
||||
|
||||
spin_unlock_irqrestore(&giu_lock, flags);
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(vr41xx_gpio_pullupdown);
|
||||
|
||||
static int vr41xx_gpio_get(struct gpio_chip *chip, unsigned pin)
|
||||
{
|
||||
u16 reg, mask;
|
||||
|
|
Loading…
Reference in a new issue