diff options
Diffstat (limited to 'drivers/gpio/gpio-menz127.c')
| -rw-r--r-- | drivers/gpio/gpio-menz127.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/gpio/gpio-menz127.c b/drivers/gpio/gpio-menz127.c index c5c9599a3a71..cc103aff45e4 100644 --- a/drivers/gpio/gpio-menz127.c +++ b/drivers/gpio/gpio-menz127.c @@ -35,7 +35,6 @@ struct men_z127_gpio { struct gpio_chip gc; void __iomem *reg_base; - struct mcb_device *mdev; struct resource *mem; }; @@ -43,7 +42,7 @@ static int men_z127_debounce(struct gpio_chip *gc, unsigned gpio, unsigned debounce) { struct men_z127_gpio *priv = gpiochip_get_data(gc); - struct device *dev = &priv->mdev->dev; + struct device *dev = gc->parent; unsigned int rnd; u32 db_en, db_cnt; @@ -88,21 +87,25 @@ static int men_z127_debounce(struct gpio_chip *gc, unsigned gpio, return 0; } -static int men_z127_request(struct gpio_chip *gc, unsigned gpio_pin) +static int men_z127_set_single_ended(struct gpio_chip *gc, + unsigned offset, + enum single_ended_mode mode) { struct men_z127_gpio *priv = gpiochip_get_data(gc); u32 od_en; - if (gpio_pin >= gc->ngpio) - return -EINVAL; + if (mode != LINE_MODE_OPEN_DRAIN && + mode != LINE_MODE_PUSH_PULL) + return -ENOTSUPP; spin_lock(&gc->bgpio_lock); od_en = readl(priv->reg_base + MEN_Z127_ODER); - if (gpiochip_line_is_open_drain(gc, gpio_pin)) - od_en |= BIT(gpio_pin); + if (mode == LINE_MODE_OPEN_DRAIN) + od_en |= BIT(offset); else - od_en &= ~BIT(gpio_pin); + /* Implicitly LINE_MODE_PUSH_PULL */ + od_en &= ~BIT(offset); writel(od_en, priv->reg_base + MEN_Z127_ODER); spin_unlock(&gc->bgpio_lock); @@ -135,7 +138,6 @@ static int men_z127_probe(struct mcb_device *mdev, goto err_release; } - men_z127_gpio->mdev = mdev; mcb_set_drvdata(mdev, men_z127_gpio); ret = bgpio_init(&men_z127_gpio->gc, &mdev->dev, 4, @@ -148,7 +150,7 @@ static int men_z127_probe(struct mcb_device *mdev, goto err_unmap; men_z127_gpio->gc.set_debounce = men_z127_debounce; - men_z127_gpio->gc.request = men_z127_request; + men_z127_gpio->gc.set_single_ended = men_z127_set_single_ended; ret = gpiochip_add_data(&men_z127_gpio->gc, men_z127_gpio); if (ret) { |