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gpio: wcove: make irq_chip immutable

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Since recently, the kernel is nagging about mutable irq_chips:

   "not an immutable chip, please consider fixing it!"

Drop the unneeded copy, flag it as IRQCHIP_IMMUTABLE, add the new
helper functions and call the appropriate gpiolib functions.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2022-05-12 20:39:21 +03:00
parent 68a12c19e1
commit 41a18c4918
1 changed files with 8 additions and 2 deletions
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10
drivers/gpio/gpio-wcove.c
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@ -299,6 +299,8 @@ static void wcove_irq_unmask(struct irq_data *data)
if (gpio >= WCOVE_GPIO_NUM)
return;
gpiochip_enable_irq(chip, gpio);
wg->set_irq_mask = false;
wg->update |= UPDATE_IRQ_MASK;
}
@ -314,15 +316,19 @@ static void wcove_irq_mask(struct irq_data *data)
wg->set_irq_mask = true;
wg->update |= UPDATE_IRQ_MASK;
gpiochip_disable_irq(chip, gpio);
}
static struct irq_chip wcove_irqchip = {
static const struct irq_chip wcove_irqchip = {
.name = "Whiskey Cove",
.irq_mask = wcove_irq_mask,
.irq_unmask = wcove_irq_unmask,
.irq_set_type = wcove_irq_type,
.irq_bus_lock = wcove_bus_lock,
.irq_bus_sync_unlock = wcove_bus_sync_unlock,
.flags = IRQCHIP_IMMUTABLE,
GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static irqreturn_t wcove_gpio_irq_handler(int irq, void *data)
@ -452,7 +458,7 @@ static int wcove_gpio_probe(struct platform_device *pdev)
}
girq = &wg->chip.irq;
girq->chip = &wcove_irqchip;
gpio_irq_chip_set_chip(girq, &wcove_irqchip);
/* This will let us handle the parent IRQ in the driver */
girq->parent_handler = NULL;
girq->num_parents = 0;