diff options
| -rw-r--r-- | arch/arm/common/sa1111.c | 79 |
1 files changed, 51 insertions, 28 deletions
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 36c2162c95af..d6a0ce7b51cf 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -108,6 +108,7 @@ struct sa1111 { spinlock_t lock; void __iomem *base; struct sa1111_platform_data *pdata; + struct irq_domain *irqdomain; struct gpio_chip gc; #ifdef CONFIG_PM void *saved_state; @@ -193,6 +194,14 @@ static struct sa1111_dev_info sa1111_devices[] = { }, }; +static void sa1111_handle_irqdomain(struct irq_domain *irqdomain, int irq) +{ + struct irq_desc *d = irq_to_desc(irq_linear_revmap(irqdomain, irq)); + + if (d) + generic_handle_irq_desc(d); +} + /* * SA1111 interrupt support. Since clearing an IRQ while there are * active IRQs causes the interrupt output to pulse, the upper levels @@ -202,6 +211,7 @@ static void sa1111_irq_handler(struct irq_desc *desc) { unsigned int stat0, stat1, i; struct sa1111 *sachip = irq_desc_get_handler_data(desc); + struct irq_domain *irqdomain; void __iomem *mapbase = sachip->base + SA1111_INTC; stat0 = readl_relaxed(mapbase + SA1111_INTSTATCLR0); @@ -218,33 +228,28 @@ static void sa1111_irq_handler(struct irq_desc *desc) return; } + irqdomain = sachip->irqdomain; + for (i = 0; stat0; i++, stat0 >>= 1) if (stat0 & 1) - generic_handle_irq(i + sachip->irq_base); + sa1111_handle_irqdomain(irqdomain, i); for (i = 32; stat1; i++, stat1 >>= 1) if (stat1 & 1) - generic_handle_irq(i + sachip->irq_base); + sa1111_handle_irqdomain(irqdomain, i); /* For level-based interrupts */ desc->irq_data.chip->irq_unmask(&desc->irq_data); } -#define SA1111_IRQMASK_LO(x) (1 << (x - sachip->irq_base)) -#define SA1111_IRQMASK_HI(x) (1 << (x - sachip->irq_base - 32)) - static u32 sa1111_irqmask(struct irq_data *d) { - struct sa1111 *sachip = irq_data_get_irq_chip_data(d); - - return BIT((d->irq - sachip->irq_base) & 31); + return BIT(irqd_to_hwirq(d) & 31); } static int sa1111_irqbank(struct irq_data *d) { - struct sa1111 *sachip = irq_data_get_irq_chip_data(d); - - return ((d->irq - sachip->irq_base) / 32) * 4; + return (irqd_to_hwirq(d) / 32) * 4; } static void sa1111_ack_irq(struct irq_data *d) @@ -350,10 +355,26 @@ static struct irq_chip sa1111_irq_chip = { .irq_set_wake = sa1111_wake_irq, }; +static int sa1111_irqdomain_map(struct irq_domain *d, unsigned int irq, + irq_hw_number_t hwirq) +{ + struct sa1111 *sachip = d->host_data; + + irq_set_chip_data(irq, sachip); + irq_set_chip_and_handler(irq, &sa1111_irq_chip, handle_edge_irq); + irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); + + return 0; +} + +static const struct irq_domain_ops sa1111_irqdomain_ops = { + .map = sa1111_irqdomain_map, + .xlate = irq_domain_xlate_twocell, +}; + static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base) { void __iomem *irqbase = sachip->base + SA1111_INTC; - unsigned i, irq; int ret; /* @@ -391,19 +412,21 @@ static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base) writel_relaxed(~0, irqbase + SA1111_INTSTATCLR0); writel_relaxed(~0, irqbase + SA1111_INTSTATCLR1); - for (i = IRQ_GPAIN0; i <= SSPROR; i++) { - irq = sachip->irq_base + i; - irq_set_chip_and_handler(irq, &sa1111_irq_chip, handle_edge_irq); - irq_set_chip_data(irq, sachip); - irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); + sachip->irqdomain = irq_domain_add_linear(NULL, SA1111_IRQ_NR, + &sa1111_irqdomain_ops, + sachip); + if (!sachip->irqdomain) { + irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); + return -ENOMEM; } - for (i = AUDXMTDMADONEA; i <= IRQ_S1_BVD1_STSCHG; i++) { - irq = sachip->irq_base + i; - irq_set_chip_and_handler(irq, &sa1111_irq_chip, handle_edge_irq); - irq_set_chip_data(irq, sachip); - irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); - } + irq_domain_associate_many(sachip->irqdomain, + sachip->irq_base + IRQ_GPAIN0, + IRQ_GPAIN0, SSPROR + 1 - IRQ_GPAIN0); + irq_domain_associate_many(sachip->irqdomain, + sachip->irq_base + AUDXMTDMADONEA, + AUDXMTDMADONEA, + IRQ_S1_BVD1_STSCHG + 1 - AUDXMTDMADONEA); /* * Register SA1111 interrupt @@ -428,12 +451,12 @@ static void sa1111_remove_irq(struct sa1111 *sachip) writel_relaxed(0, irqbase + SA1111_WAKEEN0); writel_relaxed(0, irqbase + SA1111_WAKEEN1); - if (sachip->irq != NO_IRQ) { - irq_set_chained_handler_and_data(sachip->irq, NULL, NULL); - irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); + irq_domain_remove(sachip->irqdomain); - release_mem_region(sachip->phys + SA1111_INTC, 512); - } + irq_set_chained_handler_and_data(sachip->irq, NULL, NULL); + irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); + + release_mem_region(sachip->phys + SA1111_INTC, 512); } enum { |