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pinctrl: ocelot: Make irq_chip immutable

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Since recently, the kernel is nagging about mutable irq_chips:

[    2.593426] gpio gpiochip0: (ocelot-gpio): not an immutable chip, please consider fixing it!

Make it const, flag it as IRQCHIP_IMMUTABLE, add the new helper
functions and call the appropriate gpiolib functions.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220706151553.1580790-2-michael@walle.cc
This commit is contained in:
Michael Walle 2022-07-06 17:15:53 +02:00 committed by Marc Zyngier
parent ef6e5d61eb
commit 51ff93923e
1 changed files with 8 additions and 2 deletions
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10
drivers/pinctrl/pinctrl-ocelot.c
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@ -1761,6 +1761,7 @@ static void ocelot_irq_mask(struct irq_data *data)
regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio),
BIT(gpio % 32), 0);
gpiochip_disable_irq(chip, gpio);
}
static void ocelot_irq_unmask(struct irq_data *data)
@ -1769,6 +1770,7 @@ static void ocelot_irq_unmask(struct irq_data *data)
struct ocelot_pinctrl *info = gpiochip_get_data(chip);
unsigned int gpio = irqd_to_hwirq(data);
gpiochip_enable_irq(chip, gpio);
regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio),
BIT(gpio % 32), BIT(gpio % 32));
}
@ -1790,8 +1792,10 @@ static struct irq_chip ocelot_eoi_irqchip = {
.irq_mask = ocelot_irq_mask,
.irq_eoi = ocelot_irq_ack,
.irq_unmask = ocelot_irq_unmask,
.flags = IRQCHIP_EOI_THREADED | IRQCHIP_EOI_IF_HANDLED,
.flags = IRQCHIP_EOI_THREADED | IRQCHIP_EOI_IF_HANDLED |
IRQCHIP_IMMUTABLE,
.irq_set_type = ocelot_irq_set_type,
GPIOCHIP_IRQ_RESOURCE_HELPERS
};
static struct irq_chip ocelot_irqchip = {
@ -1800,6 +1804,8 @@ static struct irq_chip ocelot_irqchip = {
.irq_ack = ocelot_irq_ack,
.irq_unmask = ocelot_irq_unmask,
.irq_set_type = ocelot_irq_set_type,
.flags = IRQCHIP_IMMUTABLE,
GPIOCHIP_IRQ_RESOURCE_HELPERS
};
static int ocelot_irq_set_type(struct irq_data *data, unsigned int type)
@ -1863,7 +1869,7 @@ static int ocelot_gpiochip_register(struct platform_device *pdev,
irq = platform_get_irq_optional(pdev, 0);
if (irq > 0) {
girq = &gc->irq;
girq->chip = &ocelot_irqchip;
gpio_irq_chip_set_chip(girq, &ocelot_irqchip);
girq->parent_handler = ocelot_irq_handler;
girq->num_parents = 1;
girq->parents = devm_kcalloc(&pdev->dev, 1,