diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/socrates_fpga_pic.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/socrates_fpga_pic.c | 43 |
1 files changed, 15 insertions, 28 deletions
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c index db864623b4a..55a9682b952 100644 --- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c +++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c @@ -9,6 +9,8 @@ */ #include <linux/irq.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/io.h> @@ -48,12 +50,10 @@ static struct socrates_fpga_irq_info fpga_irqs[SOCRATES_FPGA_NUM_IRQS] = { [8] = {0, IRQ_TYPE_LEVEL_HIGH}, }; -#define socrates_fpga_irq_to_hw(virq) ((unsigned int)irq_map[virq].hwirq) - static DEFINE_RAW_SPINLOCK(socrates_fpga_pic_lock); static void __iomem *socrates_fpga_pic_iobase; -static struct irq_host *socrates_fpga_pic_irq_host; +static struct irq_domain *socrates_fpga_pic_irq_host; static unsigned int socrates_fpga_irqs[3]; static inline uint32_t socrates_fpga_pic_read(int reg) @@ -110,11 +110,9 @@ void socrates_fpga_pic_cascade(unsigned int irq, struct irq_desc *desc) static void socrates_fpga_pic_ack(struct irq_data *d) { unsigned long flags; - unsigned int hwirq, irq_line; + unsigned int irq_line, hwirq = irqd_to_hwirq(d); uint32_t mask; - hwirq = socrates_fpga_irq_to_hw(d->irq); - irq_line = fpga_irqs[hwirq].irq_line; raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags); mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line)) @@ -127,12 +125,10 @@ static void socrates_fpga_pic_ack(struct irq_data *d) static void socrates_fpga_pic_mask(struct irq_data *d) { unsigned long flags; - unsigned int hwirq; + unsigned int hwirq = irqd_to_hwirq(d); int irq_line; u32 mask; - hwirq = socrates_fpga_irq_to_hw(d->irq); - irq_line = fpga_irqs[hwirq].irq_line; raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags); mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line)) @@ -145,12 +141,10 @@ static void socrates_fpga_pic_mask(struct irq_data *d) static void socrates_fpga_pic_mask_ack(struct irq_data *d) { unsigned long flags; - unsigned int hwirq; + unsigned int hwirq = irqd_to_hwirq(d); int irq_line; u32 mask; - hwirq = socrates_fpga_irq_to_hw(d->irq); - irq_line = fpga_irqs[hwirq].irq_line; raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags); mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line)) @@ -164,12 +158,10 @@ static void socrates_fpga_pic_mask_ack(struct irq_data *d) static void socrates_fpga_pic_unmask(struct irq_data *d) { unsigned long flags; - unsigned int hwirq; + unsigned int hwirq = irqd_to_hwirq(d); int irq_line; u32 mask; - hwirq = socrates_fpga_irq_to_hw(d->irq); - irq_line = fpga_irqs[hwirq].irq_line; raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags); mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line)) @@ -182,12 +174,10 @@ static void socrates_fpga_pic_unmask(struct irq_data *d) static void socrates_fpga_pic_eoi(struct irq_data *d) { unsigned long flags; - unsigned int hwirq; + unsigned int hwirq = irqd_to_hwirq(d); int irq_line; u32 mask; - hwirq = socrates_fpga_irq_to_hw(d->irq); - irq_line = fpga_irqs[hwirq].irq_line; raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags); mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line)) @@ -201,12 +191,10 @@ static int socrates_fpga_pic_set_type(struct irq_data *d, unsigned int flow_type) { unsigned long flags; - unsigned int hwirq; + unsigned int hwirq = irqd_to_hwirq(d); int polarity; u32 mask; - hwirq = socrates_fpga_irq_to_hw(d->irq); - if (fpga_irqs[hwirq].type != IRQ_TYPE_NONE) return -EINVAL; @@ -241,7 +229,7 @@ static struct irq_chip socrates_fpga_pic_chip = { .irq_set_type = socrates_fpga_pic_set_type, }; -static int socrates_fpga_pic_host_map(struct irq_host *h, unsigned int virq, +static int socrates_fpga_pic_host_map(struct irq_domain *h, unsigned int virq, irq_hw_number_t hwirq) { /* All interrupts are LEVEL sensitive */ @@ -252,7 +240,7 @@ static int socrates_fpga_pic_host_map(struct irq_host *h, unsigned int virq, return 0; } -static int socrates_fpga_pic_host_xlate(struct irq_host *h, +static int socrates_fpga_pic_host_xlate(struct irq_domain *h, struct device_node *ct, const u32 *intspec, unsigned int intsize, irq_hw_number_t *out_hwirq, unsigned int *out_flags) { @@ -283,7 +271,7 @@ static int socrates_fpga_pic_host_xlate(struct irq_host *h, return 0; } -static struct irq_host_ops socrates_fpga_pic_host_ops = { +static const struct irq_domain_ops socrates_fpga_pic_host_ops = { .map = socrates_fpga_pic_host_map, .xlate = socrates_fpga_pic_host_xlate, }; @@ -293,10 +281,9 @@ void socrates_fpga_pic_init(struct device_node *pic) unsigned long flags; int i; - /* Setup an irq_host structure */ - socrates_fpga_pic_irq_host = irq_alloc_host(pic, IRQ_HOST_MAP_LINEAR, - SOCRATES_FPGA_NUM_IRQS, &socrates_fpga_pic_host_ops, - SOCRATES_FPGA_NUM_IRQS); + /* Setup an irq_domain structure */ + socrates_fpga_pic_irq_host = irq_domain_add_linear(pic, + SOCRATES_FPGA_NUM_IRQS, &socrates_fpga_pic_host_ops, NULL); if (socrates_fpga_pic_irq_host == NULL) { pr_err("FPGA PIC: Unable to allocate host\n"); return; |