diff options
Diffstat (limited to 'drivers/irqchip/irq-mvebu-pic.c')
| -rw-r--r-- | drivers/irqchip/irq-mvebu-pic.c | 58 |
1 files changed, 29 insertions, 29 deletions
diff --git a/drivers/irqchip/irq-mvebu-pic.c b/drivers/irqchip/irq-mvebu-pic.c index eec63951129a..10b85128183a 100644 --- a/drivers/irqchip/irq-mvebu-pic.c +++ b/drivers/irqchip/irq-mvebu-pic.c @@ -18,6 +18,7 @@ #include <linux/module.h> #include <linux/of_irq.h> #include <linux/platform_device.h> +#include <linux/seq_file.h> #define PIC_CAUSE 0x0 #define PIC_MASK 0x4 @@ -29,7 +30,7 @@ struct mvebu_pic { void __iomem *base; u32 parent_irq; struct irq_domain *domain; - struct irq_chip irq_chip; + struct platform_device *pdev; }; static void mvebu_pic_reset(struct mvebu_pic *pic) @@ -66,6 +67,20 @@ static void mvebu_pic_unmask_irq(struct irq_data *d) writel(reg, pic->base + PIC_MASK); } +static void mvebu_pic_print_chip(struct irq_data *d, struct seq_file *p) +{ + struct mvebu_pic *pic = irq_data_get_irq_chip_data(d); + + seq_puts(p, dev_name(&pic->pdev->dev)); +} + +static const struct irq_chip mvebu_pic_chip = { + .irq_mask = mvebu_pic_mask_irq, + .irq_unmask = mvebu_pic_unmask_irq, + .irq_eoi = mvebu_pic_eoi_irq, + .irq_print_chip = mvebu_pic_print_chip, +}; + static int mvebu_pic_irq_map(struct irq_domain *domain, unsigned int virq, irq_hw_number_t hwirq) { @@ -73,8 +88,7 @@ static int mvebu_pic_irq_map(struct irq_domain *domain, unsigned int virq, irq_set_percpu_devid(virq); irq_set_chip_data(virq, pic); - irq_set_chip_and_handler(virq, &pic->irq_chip, - handle_percpu_devid_irq); + irq_set_chip_and_handler(virq, &mvebu_pic_chip, handle_percpu_devid_irq); irq_set_status_flags(virq, IRQ_LEVEL); irq_set_probe(virq); @@ -91,15 +105,12 @@ static void mvebu_pic_handle_cascade_irq(struct irq_desc *desc) struct mvebu_pic *pic = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); unsigned long irqmap, irqn; - unsigned int cascade_irq; irqmap = readl_relaxed(pic->base + PIC_CAUSE); chained_irq_enter(chip, desc); - for_each_set_bit(irqn, &irqmap, BITS_PER_LONG) { - cascade_irq = irq_find_mapping(pic->domain, irqn); - generic_handle_irq(cascade_irq); - } + for_each_set_bit(irqn, &irqmap, BITS_PER_LONG) + generic_handle_domain_irq(pic->domain, irqn); chained_irq_exit(chip, desc); } @@ -123,32 +134,24 @@ static int mvebu_pic_probe(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; struct mvebu_pic *pic; - struct irq_chip *irq_chip; - struct resource *res; pic = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_pic), GFP_KERNEL); if (!pic) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pic->base = devm_ioremap_resource(&pdev->dev, res); + pic->pdev = pdev; + pic->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pic->base)) return PTR_ERR(pic->base); - irq_chip = &pic->irq_chip; - irq_chip->name = dev_name(&pdev->dev); - irq_chip->irq_mask = mvebu_pic_mask_irq; - irq_chip->irq_unmask = mvebu_pic_unmask_irq; - irq_chip->irq_eoi = mvebu_pic_eoi_irq; - pic->parent_irq = irq_of_parse_and_map(node, 0); if (pic->parent_irq <= 0) { dev_err(&pdev->dev, "Failed to parse parent interrupt\n"); return -EINVAL; } - pic->domain = irq_domain_add_linear(node, PIC_MAX_IRQS, - &mvebu_pic_domain_ops, pic); + pic->domain = irq_domain_create_linear(dev_fwnode(&pdev->dev), PIC_MAX_IRQS, + &mvebu_pic_domain_ops, pic); if (!pic->domain) { dev_err(&pdev->dev, "Failed to allocate irq domain\n"); return -ENOMEM; @@ -164,14 +167,12 @@ static int mvebu_pic_probe(struct platform_device *pdev) return 0; } -static int mvebu_pic_remove(struct platform_device *pdev) +static void mvebu_pic_remove(struct platform_device *pdev) { struct mvebu_pic *pic = platform_get_drvdata(pdev); on_each_cpu(mvebu_pic_disable_percpu_irq, pic, 1); irq_domain_remove(pic->domain); - - return 0; } static const struct of_device_id mvebu_pic_of_match[] = { @@ -181,17 +182,16 @@ static const struct of_device_id mvebu_pic_of_match[] = { MODULE_DEVICE_TABLE(of, mvebu_pic_of_match); static struct platform_driver mvebu_pic_driver = { - .probe = mvebu_pic_probe, - .remove = mvebu_pic_remove, + .probe = mvebu_pic_probe, + .remove = mvebu_pic_remove, .driver = { - .name = "mvebu-pic", - .of_match_table = mvebu_pic_of_match, + .name = "mvebu-pic", + .of_match_table = mvebu_pic_of_match, }, }; module_platform_driver(mvebu_pic_driver); MODULE_AUTHOR("Yehuda Yitschak <yehuday@marvell.com>"); MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); +MODULE_DESCRIPTION("Marvell Armada 7K/8K PIC driver"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:mvebu_pic"); - |