diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2018-09-12 14:22:15 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-09-17 20:55:24 +0300 |
| commit | 2ab4a93980e4831ec901d040f792f72f84205c16 (patch) | |
| tree | 47e84017016d73d80bf1c4d0b38d6742eb7f282b /drivers/gpio/gpio-vr41xx.c | |
| parent | 2abfb31410fa9e742b333b907a1ed86c4aa1ff63 (diff) | |
| download | linux-2ab4a93980e4831ec901d040f792f72f84205c16.tar.xz | |
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>
Diffstat (limited to 'drivers/gpio/gpio-vr41xx.c')
| -rw-r--r-- | drivers/gpio/gpio-vr41xx.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c index 7d40104b8586..b13a49c89cc1 100644 --- a/drivers/gpio/gpio-vr41xx.c +++ b/drivers/gpio/gpio-vr41xx.c @@ -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; |