diff options
| author | Heiko Stuebner <heiko@sntech.de> | 2013-04-04 07:53:52 +0200 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2013-04-04 07:56:22 +0200 |
| commit | f5a25524508e68ac670b28db9112d3962dca4703 (patch) | |
| tree | 6c3e56d0f95e6a5a16d13c7a7adc970484c7bc8c /drivers/irqchip | |
| parent | irqchip: s3c24xx: globally keep track of the created intc instances (diff) | |
| download | linux-f5a25524508e68ac670b28db9112d3962dca4703.tar.xz linux-f5a25524508e68ac670b28db9112d3962dca4703.zip | |
irqchip: s3c24xx: make interrupt handling independent of irq_domain structure
Keep a pointer to the corresponding s3c_irq_data struct as irq_chip_data.
This removes the need to fetch the intc struct from the irq_domains
host_data, thus making it independent of the underlying irq_domain
structure.
Also keep the real register offset of the interrupt in the s3c_irq_data
struct to make it independent of the hwirq structure in the irq_domain
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-s3c24xx.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/irqchip/irq-s3c24xx.c b/drivers/irqchip/irq-s3c24xx.c index 9914abdb8214..02b82db086d8 100644 --- a/drivers/irqchip/irq-s3c24xx.c +++ b/drivers/irqchip/irq-s3c24xx.c @@ -43,6 +43,7 @@ struct s3c_irq_data { unsigned int type; + unsigned long offset; unsigned long parent_irq; /* data gets filled during init */ @@ -79,15 +80,15 @@ static struct s3c_irq_intc *s3c_intc[3]; static void s3c_irq_mask(struct irq_data *data) { - struct s3c_irq_intc *intc = data->domain->host_data; + struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data); + struct s3c_irq_intc *intc = irq_data->intc; struct s3c_irq_intc *parent_intc = intc->parent; - struct s3c_irq_data *irq_data = &intc->irqs[data->hwirq]; struct s3c_irq_data *parent_data; unsigned long mask; unsigned int irqno; mask = __raw_readl(intc->reg_mask); - mask |= (1UL << data->hwirq); + mask |= (1UL << irq_data->offset); __raw_writel(mask, intc->reg_mask); if (parent_intc) { @@ -104,14 +105,14 @@ static void s3c_irq_mask(struct irq_data *data) static void s3c_irq_unmask(struct irq_data *data) { - struct s3c_irq_intc *intc = data->domain->host_data; + struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data); + struct s3c_irq_intc *intc = irq_data->intc; struct s3c_irq_intc *parent_intc = intc->parent; - struct s3c_irq_data *irq_data = &intc->irqs[data->hwirq]; unsigned long mask; unsigned int irqno; mask = __raw_readl(intc->reg_mask); - mask &= ~(1UL << data->hwirq); + mask &= ~(1UL << irq_data->offset); __raw_writel(mask, intc->reg_mask); if (parent_intc) { @@ -123,8 +124,9 @@ static void s3c_irq_unmask(struct irq_data *data) static inline void s3c_irq_ack(struct irq_data *data) { - struct s3c_irq_intc *intc = data->domain->host_data; - unsigned long bitval = 1UL << data->hwirq; + struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data); + struct s3c_irq_intc *intc = irq_data->intc; + unsigned long bitval = 1UL << irq_data->offset; __raw_writel(bitval, intc->reg_pending); if (intc->reg_intpnd) @@ -291,8 +293,7 @@ static struct irq_chip s3c_irq_eint0t4 = { static void s3c_irq_demux(unsigned int irq, struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); - struct s3c_irq_intc *intc = desc->irq_data.domain->host_data; - struct s3c_irq_data *irq_data = &intc->irqs[desc->irq_data.hwirq]; + struct s3c_irq_data *irq_data = irq_desc_get_chip_data(desc); struct s3c_irq_intc *sub_intc = irq_data->sub_intc; unsigned long src; unsigned long msk; @@ -406,6 +407,7 @@ static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq, /* attach controller pointer to irq_data */ irq_data->intc = intc; + irq_data->offset = hw; parent_intc = intc->parent; @@ -444,6 +446,9 @@ static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq, pr_err("irq-s3c24xx: unsupported irqtype %d\n", irq_data->type); return -EINVAL; } + + irq_set_chip_data(virq, irq_data); + set_irq_flags(virq, IRQF_VALID); if (parent_intc && irq_data->type != S3C_IRQTYPE_NONE) { |