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61 lines
2.2 KiB
Diff
61 lines
2.2 KiB
Diff
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From b11ce7e48121a02ceedec9f4dfcab4f2bee8f35f Mon Sep 17 00:00:00 2001
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From: Linus Walleij <linus.walleij@linaro.org>
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Date: Thu, 9 Mar 2023 08:45:54 +0100
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Subject: gpio: ath79: Convert to immutable irq_chip
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Convert the driver to immutable irq-chip with a bit of
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intuition.
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Cc: Marc Zyngier <maz@kernel.org>
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Acked-by: Marc Zyngier <maz@kernel.org>
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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---
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drivers/gpio/gpio-ath79.c | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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--- a/drivers/gpio/gpio-ath79.c
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+++ b/drivers/gpio/gpio-ath79.c
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@@ -71,6 +71,7 @@ static void ath79_gpio_irq_unmask(struct
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u32 mask = BIT(irqd_to_hwirq(data));
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unsigned long flags;
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+ gpiochip_enable_irq(&ctrl->gc, irqd_to_hwirq(data));
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raw_spin_lock_irqsave(&ctrl->lock, flags);
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ath79_gpio_update_bits(ctrl, AR71XX_GPIO_REG_INT_MASK, mask, mask);
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raw_spin_unlock_irqrestore(&ctrl->lock, flags);
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@@ -85,6 +86,7 @@ static void ath79_gpio_irq_mask(struct i
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raw_spin_lock_irqsave(&ctrl->lock, flags);
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ath79_gpio_update_bits(ctrl, AR71XX_GPIO_REG_INT_MASK, mask, 0);
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raw_spin_unlock_irqrestore(&ctrl->lock, flags);
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+ gpiochip_disable_irq(&ctrl->gc, irqd_to_hwirq(data));
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}
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static void ath79_gpio_irq_enable(struct irq_data *data)
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@@ -169,13 +171,15 @@ static int ath79_gpio_irq_set_type(struc
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return 0;
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}
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-static struct irq_chip ath79_gpio_irqchip = {
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+static const struct irq_chip ath79_gpio_irqchip = {
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.name = "gpio-ath79",
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.irq_enable = ath79_gpio_irq_enable,
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.irq_disable = ath79_gpio_irq_disable,
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.irq_mask = ath79_gpio_irq_mask,
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.irq_unmask = ath79_gpio_irq_unmask,
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.irq_set_type = ath79_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 void ath79_gpio_irq_handler(struct irq_desc *desc)
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@@ -274,7 +278,7 @@ static int ath79_gpio_probe(struct platf
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/* Optional interrupt setup */
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if (!np || of_property_read_bool(np, "interrupt-controller")) {
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girq = &ctrl->gc.irq;
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- girq->chip = &ath79_gpio_irqchip;
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+ gpio_irq_chip_set_chip(girq, &ath79_gpio_irqchip);
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girq->parent_handler = ath79_gpio_irq_handler;
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girq->num_parents = 1;
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girq->parents = devm_kcalloc(dev, 1, sizeof(*girq->parents),
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