diff options
Diffstat (limited to 'drivers/gpio/gpio-rcar.c')
| -rw-r--r-- | drivers/gpio/gpio-rcar.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index 4d9a315cf..681c93fb9 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -284,6 +284,25 @@ static void gpio_rcar_set(struct gpio_chip *chip, unsigned offset, int value) spin_unlock_irqrestore(&p->lock, flags); } +static void gpio_rcar_set_multiple(struct gpio_chip *chip, unsigned long *mask, + unsigned long *bits) +{ + struct gpio_rcar_priv *p = gpiochip_get_data(chip); + unsigned long flags; + u32 val, bankmask; + + bankmask = mask[0] & GENMASK(chip->ngpio - 1, 0); + if (!bankmask) + return; + + spin_lock_irqsave(&p->lock, flags); + val = gpio_rcar_read(p, OUTDT); + val &= ~bankmask; + val |= (bankmask & bits[0]); + gpio_rcar_write(p, OUTDT, val); + spin_unlock_irqrestore(&p->lock, flags); +} + static int gpio_rcar_direction_output(struct gpio_chip *chip, unsigned offset, int value) { @@ -425,6 +444,7 @@ static int gpio_rcar_probe(struct platform_device *pdev) gpio_chip->get = gpio_rcar_get; gpio_chip->direction_output = gpio_rcar_direction_output; gpio_chip->set = gpio_rcar_set; + gpio_chip->set_multiple = gpio_rcar_set_multiple; gpio_chip->label = name; gpio_chip->parent = dev; gpio_chip->owner = THIS_MODULE; |