diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/irqchip/exynos-combiner.c | 46 |
1 files changed, 16 insertions, 30 deletions
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c index e8501dbaa0b7..d8683836ee1e 100644 --- a/drivers/irqchip/exynos-combiner.c +++ b/drivers/irqchip/exynos-combiner.c @@ -25,6 +25,8 @@ #define COMBINER_ENABLE_CLEAR 0x4 #define COMBINER_INT_STATUS 0xC +#define IRQ_IN_COMBINER 8 + static DEFINE_SPINLOCK(irq_controller_lock); struct combiner_chip_data { @@ -112,23 +114,9 @@ static struct irq_chip combiner_chip = { #endif }; -static unsigned int max_combiner_nr(void) -{ - if (soc_is_exynos5250()) - return EXYNOS5_MAX_COMBINER_NR; - else if (soc_is_exynos4412()) - return EXYNOS4412_MAX_COMBINER_NR; - else if (soc_is_exynos4212()) - return EXYNOS4212_MAX_COMBINER_NR; - else - return EXYNOS4210_MAX_COMBINER_NR; -} - static void __init combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq) { - if (combiner_nr >= max_combiner_nr()) - BUG(); if (irq_set_handler_data(irq, &combiner_data[combiner_nr]) != 0) BUG(); irq_set_chained_handler(irq, combiner_handle_cascade_irq); @@ -139,7 +127,7 @@ static void __init combiner_init_one(unsigned int combiner_nr, { combiner_data[combiner_nr].base = base; combiner_data[combiner_nr].irq_offset = irq_find_mapping( - combiner_irq_domain, combiner_nr * MAX_IRQ_IN_COMBINER); + combiner_irq_domain, combiner_nr * IRQ_IN_COMBINER); combiner_data[combiner_nr].irq_mask = 0xff << ((combiner_nr % 4) << 3); combiner_data[combiner_nr].parent_irq = irq; @@ -161,7 +149,7 @@ static int combiner_irq_domain_xlate(struct irq_domain *d, if (intsize < 2) return -EINVAL; - *out_hwirq = intspec[0] * MAX_IRQ_IN_COMBINER + intspec[1]; + *out_hwirq = intspec[0] * IRQ_IN_COMBINER + intspec[1]; *out_type = 0; return 0; @@ -209,22 +197,13 @@ static unsigned int exynos4x12_combiner_extra_irq(int group) } void __init combiner_init(void __iomem *combiner_base, - struct device_node *np) + struct device_node *np, + unsigned int max_nr) { int i, irq, irq_base; - unsigned int max_nr, nr_irq; + unsigned int nr_irq; - max_nr = max_combiner_nr(); - - if (np) { - if (of_property_read_u32(np, "samsung,combiner-nr", &max_nr)) { - pr_info("%s: number of combiners not specified, " - "setting default as %d.\n", - __func__, max_nr); - } - } - - nr_irq = max_nr * MAX_IRQ_IN_COMBINER; + nr_irq = max_nr * IRQ_IN_COMBINER; irq_base = irq_alloc_descs(COMBINER_IRQ(0, 0), 1, nr_irq, 0); if (IS_ERR_VALUE(irq_base)) { @@ -258,6 +237,7 @@ static int __init combiner_of_init(struct device_node *np, struct device_node *parent) { void __iomem *combiner_base; + unsigned int max_nr = 20; combiner_base = of_iomap(np, 0); if (!combiner_base) { @@ -265,7 +245,13 @@ static int __init combiner_of_init(struct device_node *np, return -ENXIO; } - combiner_init(combiner_base, np); + if (of_property_read_u32(np, "samsung,combiner-nr", &max_nr)) { + pr_info("%s: number of combiners not specified, " + "setting default as %d.\n", + __func__, max_nr); + } + + combiner_init(combiner_base, np, max_nr); return 0; } |