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gpio: menz127: Drop lock field from struct men_z127_gpio
Current code uses a uninitialized spin lock.
bgpio_init() already initialized a spin lock, so let's switch to use
&gc->bgpio_lock instead and remove the lock from struct men_z127_gpio.
Fixes: f436bc2726
"gpio: add driver for MEN 16Z127 GPIO controller"
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
parent
f55532a0c0
commit
fd975a7b18
@ -37,7 +37,6 @@ struct men_z127_gpio {
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void __iomem *reg_base;
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struct mcb_device *mdev;
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struct resource *mem;
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spinlock_t lock;
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};
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static int men_z127_debounce(struct gpio_chip *gc, unsigned gpio,
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@ -69,7 +68,7 @@ static int men_z127_debounce(struct gpio_chip *gc, unsigned gpio,
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debounce /= 50;
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}
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spin_lock(&priv->lock);
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spin_lock(&gc->bgpio_lock);
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db_en = readl(priv->reg_base + MEN_Z127_DBER);
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@ -84,7 +83,7 @@ static int men_z127_debounce(struct gpio_chip *gc, unsigned gpio,
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writel(db_en, priv->reg_base + MEN_Z127_DBER);
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writel(db_cnt, priv->reg_base + GPIO_TO_DBCNT_REG(gpio));
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spin_unlock(&priv->lock);
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spin_unlock(&gc->bgpio_lock);
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return 0;
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}
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@ -97,7 +96,7 @@ static int men_z127_request(struct gpio_chip *gc, unsigned gpio_pin)
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if (gpio_pin >= gc->ngpio)
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return -EINVAL;
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spin_lock(&priv->lock);
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spin_lock(&gc->bgpio_lock);
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od_en = readl(priv->reg_base + MEN_Z127_ODER);
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if (gpiochip_line_is_open_drain(gc, gpio_pin))
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@ -106,7 +105,7 @@ static int men_z127_request(struct gpio_chip *gc, unsigned gpio_pin)
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od_en &= ~BIT(gpio_pin);
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writel(od_en, priv->reg_base + MEN_Z127_ODER);
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spin_unlock(&priv->lock);
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spin_unlock(&gc->bgpio_lock);
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return 0;
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}
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