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gpio: tc3589x: Make irqchip immutable
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>
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@ -230,6 +230,7 @@ static void tc3589x_gpio_irq_mask(struct irq_data *d)
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tc3589x_gpio->regs[REG_IE][regoffset] &= ~mask;
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tc3589x_gpio->regs[REG_DIRECT][regoffset] |= mask;
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gpiochip_disable_irq(gc, offset);
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}
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static void tc3589x_gpio_irq_unmask(struct irq_data *d)
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@ -240,17 +241,20 @@ static void tc3589x_gpio_irq_unmask(struct irq_data *d)
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int regoffset = offset / 8;
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int mask = BIT(offset % 8);
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gpiochip_enable_irq(gc, offset);
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tc3589x_gpio->regs[REG_IE][regoffset] |= mask;
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tc3589x_gpio->regs[REG_DIRECT][regoffset] &= ~mask;
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}
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static struct irq_chip tc3589x_gpio_irq_chip = {
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static const struct irq_chip tc3589x_gpio_irq_chip = {
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.name = "tc3589x-gpio",
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.irq_bus_lock = tc3589x_gpio_irq_lock,
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.irq_bus_sync_unlock = tc3589x_gpio_irq_sync_unlock,
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.irq_mask = tc3589x_gpio_irq_mask,
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.irq_unmask = tc3589x_gpio_irq_unmask,
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.irq_set_type = tc3589x_gpio_irq_set_type,
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.flags = IRQCHIP_IMMUTABLE,
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GPIOCHIP_IRQ_RESOURCE_HELPERS,
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};
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static irqreturn_t tc3589x_gpio_irq(int irq, void *dev)
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@ -321,7 +325,7 @@ static int tc3589x_gpio_probe(struct platform_device *pdev)
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tc3589x_gpio->chip.base = -1;
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girq = &tc3589x_gpio->chip.irq;
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girq->chip = &tc3589x_gpio_irq_chip;
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gpio_irq_chip_set_chip(girq, &tc3589x_gpio_irq_chip);
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/* This will let us handle the parent IRQ in the driver */
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girq->parent_handler = NULL;
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girq->num_parents = 0;
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