[PATCH 11/17] gpio: msc313: Convert to immutable irq_chip
From: Linus Walleij <hidden>
Date: 2023-02-16 09:37:56
Also in:
linux-aspeed, linux-gpio, linux-omap, lkml
Subsystem:
arm/mstar/sigmastar armv7 soc support, gpio subsystem, the rest · Maintainers:
Daniel Palmer, Romain Perier, Linus Walleij, Bartosz Golaszewski, Linus Torvalds
Convert the driver to immutable irq-chip with a bit of intuition. This conversion follows the pattern of the gpio-ixp4xx hierarchical GPIO interrupt driver. Cc: Marc Zyngier <maz@kernel.org> Signed-off-by: Linus Walleij <redacted> --- drivers/gpio/gpio-msc313.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-)
diff --git a/drivers/gpio/gpio-msc313.c b/drivers/gpio/gpio-msc313.c
index 52d7b8d99170..57a6c43167f7 100644
--- a/drivers/gpio/gpio-msc313.c
+++ b/drivers/gpio/gpio-msc313.c@@ -532,17 +532,35 @@ static int msc313_gpio_direction_output(struct gpio_chip *chip, unsigned int off return 0; } +static void msc313_gpio_irq_mask(struct irq_data *d) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + + irq_chip_mask_parent(d); + gpiochip_disable_irq(gc, d->hwirq); +} + +static void msc313_gpio_irq_unmask(struct irq_data *d) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + + gpiochip_enable_irq(gc, d->hwirq); + irq_chip_unmask_parent(d); +} + /* * The interrupt handling happens in the parent interrupt controller, * we don't do anything here. */ -static struct irq_chip msc313_gpio_irqchip = { +static const struct irq_chip msc313_gpio_irqchip = { .name = "GPIO", .irq_eoi = irq_chip_eoi_parent, - .irq_mask = irq_chip_mask_parent, - .irq_unmask = irq_chip_unmask_parent, + .irq_mask = msc313_gpio_irq_mask, + .irq_unmask = msc313_gpio_irq_unmask, .irq_set_type = irq_chip_set_type_parent, .irq_set_affinity = irq_chip_set_affinity_parent, + .flags = IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS, }; /*
@@ -644,7 +662,7 @@ static int msc313_gpio_probe(struct platform_device *pdev) gpiochip->names = gpio->gpio_data->names; gpioirqchip = &gpiochip->irq; - gpioirqchip->chip = &msc313_gpio_irqchip; + gpio_irq_chip_set_chip(gpioirqchip, &msc313_gpio_irqchip); gpioirqchip->fwnode = of_node_to_fwnode(dev->of_node); gpioirqchip->parent_domain = parent_domain; gpioirqchip->child_to_parent_hwirq = msc313e_gpio_child_to_parent_hwirq;
--
2.34.1
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