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gpio: tc3589x: Make irqchip immutable

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This turns the Toshiba tc3589x gpio irqchip immutable.

Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Linus Walleij 2022-10-03 09:45:20 +02:00 committed by Bartosz Golaszewski
parent 0ae3109a83
commit 3c92506d86
1 changed files with 6 additions and 2 deletions
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8
drivers/gpio/gpio-tc3589x.c
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@ -230,6 +230,7 @@ static void tc3589x_gpio_irq_mask(struct irq_data *d)
tc3589x_gpio->regs[REG_IE][regoffset] &= ~mask;
tc3589x_gpio->regs[REG_DIRECT][regoffset] |= mask;
gpiochip_disable_irq(gc, offset);
}
static void tc3589x_gpio_irq_unmask(struct irq_data *d)
@ -240,17 +241,20 @@ static void tc3589x_gpio_irq_unmask(struct irq_data *d)
int regoffset = offset / 8;
int mask = BIT(offset % 8);
gpiochip_enable_irq(gc, offset);
tc3589x_gpio->regs[REG_IE][regoffset] |= mask;
tc3589x_gpio->regs[REG_DIRECT][regoffset] &= ~mask;
}
static struct irq_chip tc3589x_gpio_irq_chip = {
static const struct irq_chip tc3589x_gpio_irq_chip = {
.name = "tc3589x-gpio",
.irq_bus_lock = tc3589x_gpio_irq_lock,
.irq_bus_sync_unlock = tc3589x_gpio_irq_sync_unlock,
.irq_mask = tc3589x_gpio_irq_mask,
.irq_unmask = tc3589x_gpio_irq_unmask,
.irq_set_type = tc3589x_gpio_irq_set_type,
.flags = IRQCHIP_IMMUTABLE,
GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static irqreturn_t tc3589x_gpio_irq(int irq, void *dev)
@ -321,7 +325,7 @@ static int tc3589x_gpio_probe(struct platform_device *pdev)
tc3589x_gpio->chip.base = -1;
girq = &tc3589x_gpio->chip.irq;
girq->chip = &tc3589x_gpio_irq_chip;
gpio_irq_chip_set_chip(girq, &tc3589x_gpio_irq_chip);
/* This will let us handle the parent IRQ in the driver */
girq->parent_handler = NULL;
girq->num_parents = 0;