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authorLinus Walleij <linus.walleij@linaro.org>2023-03-09 08:45:58 +0100
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-03-10 16:17:30 +0100
commit9cd9e23ae3ac8a3fc1e9707da192afdb26388e82 (patch)
tree3ef842f54e69aebbc424093840df045aacfcff43 /drivers/gpio/gpio-idt3243x.c
parentgpio: hlwd: Convert to immutable irq_chip (diff)
downloadlinux-9cd9e23ae3ac8a3fc1e9707da192afdb26388e82.tar.xz
linux-9cd9e23ae3ac8a3fc1e9707da192afdb26388e82.zip
gpio: idt3243x: Convert to immutable irq_chip
Convert the driver to immutable irq-chip with a bit of intuition. Cc: Marc Zyngier <maz@kernel.org> Tested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> 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>
Diffstat (limited to 'drivers/gpio/gpio-idt3243x.c')
-rw-r--r--drivers/gpio/gpio-idt3243x.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-idt3243x.c b/drivers/gpio/gpio-idt3243x.c
index 1cafdf46f875..00f547d26254 100644
--- a/drivers/gpio/gpio-idt3243x.c
+++ b/drivers/gpio/gpio-idt3243x.c
@@ -92,6 +92,8 @@ static void idt_gpio_mask(struct irq_data *d)
writel(ctrl->mask_cache, ctrl->pic + IDT_PIC_IRQ_MASK);
raw_spin_unlock_irqrestore(&gc->bgpio_lock, flags);
+
+ gpiochip_disable_irq(gc, irqd_to_hwirq(d));
}
static void idt_gpio_unmask(struct irq_data *d)
@@ -100,6 +102,7 @@ static void idt_gpio_unmask(struct irq_data *d)
struct idt_gpio_ctrl *ctrl = gpiochip_get_data(gc);
unsigned long flags;
+ gpiochip_enable_irq(gc, irqd_to_hwirq(d));
raw_spin_lock_irqsave(&gc->bgpio_lock, flags);
ctrl->mask_cache &= ~BIT(d->hwirq);
@@ -119,12 +122,14 @@ static int idt_gpio_irq_init_hw(struct gpio_chip *gc)
return 0;
}
-static struct irq_chip idt_gpio_irqchip = {
+static const struct irq_chip idt_gpio_irqchip = {
.name = "IDTGPIO",
.irq_mask = idt_gpio_mask,
.irq_ack = idt_gpio_ack,
.irq_unmask = idt_gpio_unmask,
- .irq_set_type = idt_gpio_irq_set_type
+ .irq_set_type = idt_gpio_irq_set_type,
+ .flags = IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static int idt_gpio_probe(struct platform_device *pdev)
@@ -168,7 +173,7 @@ static int idt_gpio_probe(struct platform_device *pdev)
return parent_irq;
girq = &ctrl->gc.irq;
- girq->chip = &idt_gpio_irqchip;
+ gpio_irq_chip_set_chip(girq, &idt_gpio_irqchip);
girq->init_hw = idt_gpio_irq_init_hw;
girq->parent_handler = idt_gpio_dispatch;
girq->num_parents = 1;