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Code

gpio: mpc8xxx: Use of_mm_gpiochip_remove

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Since d621e8bae5 (Create of_mm_gpiochip_remove), there is a
counterpart for of_mm_gpiochip_add.

This patch implements the remove function of the driver making use of
it.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Ricardo Ribalda Delgado 2015-01-18 12:39:33 +01:00 committed by Linus Walleij
parent 0da094d82c
commit 257e10752c
1 changed files with 23 additions and 5 deletions
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28
drivers/gpio/gpio-mpc8xxx.c
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@ -40,6 +40,7 @@ struct mpc8xxx_gpio_chip {
*/
u32 data;
struct irq_domain *irq;
unsigned int irqn;
const void *of_dev_id_data;
};
@ -350,13 +351,14 @@ static int mpc8xxx_probe(struct platform_device *pdev)
struct of_mm_gpio_chip *mm_gc;
struct gpio_chip *gc;
const struct of_device_id *id;
unsigned hwirq;
int ret;
mpc8xxx_gc = devm_kzalloc(&pdev->dev, sizeof(*mpc8xxx_gc), GFP_KERNEL);
if (!mpc8xxx_gc)
return -ENOMEM;
platform_set_drvdata(pdev, mpc8xxx_gc);
spin_lock_init(&mpc8xxx_gc->lock);
mm_gc = &mpc8xxx_gc->mm_gc;
@ -377,8 +379,8 @@ static int mpc8xxx_probe(struct platform_device *pdev)
if (ret)
return ret;
hwirq = irq_of_parse_and_map(np, 0);
if (hwirq == NO_IRQ)
mpc8xxx_gc->irqn = irq_of_parse_and_map(np, 0);
if (mpc8xxx_gc->irqn == NO_IRQ)
return 0;
mpc8xxx_gc->irq = irq_domain_add_linear(np, MPC8XXX_GPIO_PINS,
@ -394,14 +396,30 @@ static int mpc8xxx_probe(struct platform_device *pdev)
out_be32(mm_gc->regs + GPIO_IER, 0xffffffff);
out_be32(mm_gc->regs + GPIO_IMR, 0);
irq_set_handler_data(hwirq, mpc8xxx_gc);
irq_set_chained_handler(hwirq, mpc8xxx_gpio_irq_cascade);
irq_set_handler_data(mpc8xxx_gc->irqn, mpc8xxx_gc);
irq_set_chained_handler(mpc8xxx_gc->irqn, mpc8xxx_gpio_irq_cascade);
return 0;
}
static int mpc8xxx_remove(struct platform_device *pdev)
{
struct mpc8xxx_gpio_chip *mpc8xxx_gc = platform_get_drvdata(pdev);
if (mpc8xxx_gc->irq) {
irq_set_handler_data(mpc8xxx_gc->irqn, NULL);
irq_set_chained_handler(mpc8xxx_gc->irqn, NULL);
irq_domain_remove(mpc8xxx_gc->irq);
}
of_mm_gpiochip_remove(&mpc8xxx_gc->mm_gc);
return 0;
}
static struct platform_driver mpc8xxx_plat_driver = {
.probe = mpc8xxx_probe,
.remove = mpc8xxx_remove,
.driver = {
.name = "gpio-mpc8xxx",
.of_match_table = mpc8xxx_gpio_ids,