summaryrefslogtreecommitdiff
path: root/drivers/gpio/gpio-mpc8xxx.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpio/gpio-mpc8xxx.c')
-rw-r--r--drivers/gpio/gpio-mpc8xxx.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index d7d6d72eba33..d1ff879e6ff2 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);