diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2023-04-04 11:43:05 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2023-04-14 11:08:17 +0200 |
| commit | dccdc09199b78cf3e24ec6becb70eb9a3c039d24 (patch) | |
| tree | eb41ad30dd5d8ae406352eb75034cb18c8c06ed9 /drivers/pinctrl | |
| parent | bb7e64e60e462c133a09e5674aa4c11ef888007d (diff) | |
pinctrl: armada-37xx: Convert to immutable irq_chip
Convert the driver to immutable irq-chip with a bit of
intuition.
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230403-immutable-irqchips-v1-3-503788a7f6e6@linaro.org
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c index 261b46841b9f..67c6751a6f06 100644 --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c @@ -23,6 +23,7 @@ #include <linux/platform_device.h> #include <linux/property.h> #include <linux/regmap.h> +#include <linux/seq_file.h> #include <linux/slab.h> #include <linux/string_helpers.h> @@ -101,7 +102,6 @@ struct armada_37xx_pinctrl { const struct armada_37xx_pin_data *data; struct device *dev; struct gpio_chip gpio_chip; - struct irq_chip irq_chip; raw_spinlock_t irq_lock; struct pinctrl_desc pctl; struct pinctrl_dev *pctl_dev; @@ -548,6 +548,7 @@ static void armada_37xx_irq_mask(struct irq_data *d) val = readl(info->base + reg); writel(val & ~d->mask, info->base + reg); raw_spin_unlock_irqrestore(&info->irq_lock, flags); + gpiochip_disable_irq(chip, irqd_to_hwirq(d)); } static void armada_37xx_irq_unmask(struct irq_data *d) @@ -557,6 +558,7 @@ static void armada_37xx_irq_unmask(struct irq_data *d) u32 val, reg = IRQ_EN; unsigned long flags; + gpiochip_enable_irq(chip, irqd_to_hwirq(d)); armada_37xx_irq_update_reg(®, d); raw_spin_lock_irqsave(&info->irq_lock, flags); val = readl(info->base + reg); @@ -729,11 +731,30 @@ static unsigned int armada_37xx_irq_startup(struct irq_data *d) return 0; } +static void armada_37xx_irq_print_chip(struct irq_data *d, struct seq_file *p) +{ + struct gpio_chip *chip = irq_data_get_irq_chip_data(d); + struct armada_37xx_pinctrl *info = gpiochip_get_data(chip); + + seq_printf(p, info->data->name); +} + +static const struct irq_chip armada_37xx_irqchip = { + .irq_ack = armada_37xx_irq_ack, + .irq_mask = armada_37xx_irq_mask, + .irq_unmask = armada_37xx_irq_unmask, + .irq_set_wake = armada_37xx_irq_set_wake, + .irq_set_type = armada_37xx_irq_set_type, + .irq_startup = armada_37xx_irq_startup, + .irq_print_chip = armada_37xx_irq_print_chip, + .flags = IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS, +}; + static int armada_37xx_irqchip_register(struct platform_device *pdev, struct armada_37xx_pinctrl *info) { struct gpio_chip *gc = &info->gpio_chip; - struct irq_chip *irqchip = &info->irq_chip; struct gpio_irq_chip *girq = &gc->irq; struct device_node *np = to_of_node(gc->fwnode); struct device *dev = &pdev->dev; @@ -751,14 +772,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev, if (IS_ERR(info->base)) return PTR_ERR(info->base); - irqchip->irq_ack = armada_37xx_irq_ack; - irqchip->irq_mask = armada_37xx_irq_mask; - irqchip->irq_unmask = armada_37xx_irq_unmask; - irqchip->irq_set_wake = armada_37xx_irq_set_wake; - irqchip->irq_set_type = armada_37xx_irq_set_type; - irqchip->irq_startup = armada_37xx_irq_startup; - irqchip->name = info->data->name; - girq->chip = irqchip; + gpio_irq_chip_set_chip(girq, &armada_37xx_irqchip); girq->parent_handler = armada_37xx_irq_handler; /* * Many interrupts are connected to the parent interrupt |