diff options
Diffstat (limited to 'drivers/gpio/gpio-mpc8xxx.c')
| -rw-r--r-- | drivers/gpio/gpio-mpc8xxx.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index d7d6d72eba3..d1ff879e6ff 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -105,6 +105,32 @@ static void mpc8xxx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); } +static void mpc8xxx_gpio_set_multiple(struct gpio_chip *gc, + unsigned long *mask, unsigned long *bits) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + unsigned long flags; + int i; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + for (i = 0; i < gc->ngpio; i++) { + if (*mask == 0) + break; + if (__test_and_clear_bit(i, mask)) { + if (test_bit(i, bits)) + mpc8xxx_gc->data |= mpc8xxx_gpio2mask(i); + else + mpc8xxx_gc->data &= ~mpc8xxx_gpio2mask(i); + } + } + + out_be32(mm->regs + GPIO_DAT, mpc8xxx_gc->data); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); +} + static int mpc8xxx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio) { struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); @@ -344,6 +370,7 @@ static void __init mpc8xxx_add_controller(struct device_node *np) gc->get = of_device_is_compatible(np, "fsl,mpc8572-gpio") ? mpc8572_gpio_get : mpc8xxx_gpio_get; gc->set = mpc8xxx_gpio_set; + gc->set_multiple = mpc8xxx_gpio_set_multiple; gc->to_irq = mpc8xxx_gpio_to_irq; ret = of_mm_gpiochip_add(np, mm_gc); |