diff options
Diffstat (limited to 'drivers/gpio/gpio-xgs-iproc.c')
| -rw-r--r-- | drivers/gpio/gpio-xgs-iproc.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/drivers/gpio/gpio-xgs-iproc.c b/drivers/gpio/gpio-xgs-iproc.c index fd88500399c6..2d23b27d55af 100644 --- a/drivers/gpio/gpio-xgs-iproc.c +++ b/drivers/gpio/gpio-xgs-iproc.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/seq_file.h> #include <linux/spinlock.h> #define IPROC_CCA_INT_F_GPIOINT BIT(0) @@ -27,7 +28,6 @@ #define IPROC_GPIO_CCA_INT_EDGE 0x24 struct iproc_gpio_chip { - struct irq_chip irqchip; struct gpio_chip gc; spinlock_t lock; struct device *dev; @@ -69,6 +69,7 @@ static void iproc_gpio_irq_unmask(struct irq_data *d) u32 irq = d->irq; u32 int_mask, irq_type, event_mask; + gpiochip_enable_irq(gc, pin); spin_lock_irqsave(&chip->lock, flags); irq_type = irq_get_trigger_type(irq); event_mask = readl_relaxed(chip->base + IPROC_GPIO_CCA_INT_EVENT_MASK); @@ -110,6 +111,7 @@ static void iproc_gpio_irq_mask(struct irq_data *d) chip->base + IPROC_GPIO_CCA_INT_LEVEL_MASK); } spin_unlock_irqrestore(&chip->lock, flags); + gpiochip_disable_irq(gc, pin); } static int iproc_gpio_irq_set_type(struct irq_data *d, u32 type) @@ -191,6 +193,24 @@ static irqreturn_t iproc_gpio_irq_handler(int irq, void *data) return int_bits ? IRQ_HANDLED : IRQ_NONE; } +static void iproc_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct iproc_gpio_chip *chip = to_iproc_gpio(gc); + + seq_printf(p, dev_name(chip->dev)); +} + +static const struct irq_chip iproc_gpio_irq_chip = { + .irq_ack = iproc_gpio_irq_ack, + .irq_mask = iproc_gpio_irq_mask, + .irq_unmask = iproc_gpio_irq_unmask, + .irq_set_type = iproc_gpio_irq_set_type, + .irq_print_chip = iproc_gpio_irq_print_chip, + .flags = IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS, +}; + static int iproc_gpio_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -230,16 +250,8 @@ static int iproc_gpio_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq > 0) { struct gpio_irq_chip *girq; - struct irq_chip *irqc; u32 val; - irqc = &chip->irqchip; - irqc->name = dev_name(dev); - irqc->irq_ack = iproc_gpio_irq_ack; - irqc->irq_mask = iproc_gpio_irq_mask; - irqc->irq_unmask = iproc_gpio_irq_unmask; - irqc->irq_set_type = iproc_gpio_irq_set_type; - chip->intr = devm_platform_ioremap_resource(pdev, 1); if (IS_ERR(chip->intr)) return PTR_ERR(chip->intr); @@ -261,7 +273,7 @@ static int iproc_gpio_probe(struct platform_device *pdev) } girq = &chip->gc.irq; - girq->chip = irqc; + gpio_irq_chip_set_chip(girq, &iproc_gpio_irq_chip); /* This will let us handle the parent IRQ in the driver */ girq->parent_handler = NULL; girq->num_parents = 0; |