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