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path: root/drivers/gpio/gpio-menz127.c
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Diffstat (limited to 'drivers/gpio/gpio-menz127.c')
-rw-r--r--drivers/gpio/gpio-menz127.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/gpio/gpio-menz127.c b/drivers/gpio/gpio-menz127.c
index c5c9599a3..cc103aff4 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) {