diff options
Diffstat (limited to 'drivers/parisc/gsc.c')
| -rw-r--r-- | drivers/parisc/gsc.c | 83 |
1 files changed, 39 insertions, 44 deletions
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c index 1b3e3fd12d9..1bab5a2cd35 100644 --- a/drivers/parisc/gsc.c +++ b/drivers/parisc/gsc.c @@ -19,7 +19,6 @@ #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/module.h> -#include <linux/slab.h> #include <linux/types.h> #include <asm/hardware.h> @@ -87,7 +86,7 @@ irqreturn_t gsc_asic_intr(int gsc_asic_irq, void *dev) do { int local_irq = __ffs(irr); unsigned int irq = gsc_asic->global_irq[local_irq]; - __do_IRQ(irq); + generic_handle_irq(irq); irr &= ~(1 << local_irq); } while (irr); @@ -106,13 +105,13 @@ int gsc_find_local_irq(unsigned int irq, int *global_irqs, int limit) return NO_IRQ; } -static void gsc_asic_disable_irq(unsigned int irq) +static void gsc_asic_mask_irq(struct irq_data *d) { - struct gsc_asic *irq_dev = irq_desc[irq].chip_data; - int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32); + struct gsc_asic *irq_dev = irq_data_get_irq_chip_data(d); + int local_irq = gsc_find_local_irq(d->irq, irq_dev->global_irq, 32); u32 imr; - DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq, + DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, d->irq, irq_dev->name, imr); /* Disable the IRQ line by clearing the bit in the IMR */ @@ -121,13 +120,13 @@ static void gsc_asic_disable_irq(unsigned int irq) gsc_writel(imr, irq_dev->hpa + OFFSET_IMR); } -static void gsc_asic_enable_irq(unsigned int irq) +static void gsc_asic_unmask_irq(struct irq_data *d) { - struct gsc_asic *irq_dev = irq_desc[irq].chip_data; - int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32); + struct gsc_asic *irq_dev = irq_data_get_irq_chip_data(d); + int local_irq = gsc_find_local_irq(d->irq, irq_dev->global_irq, 32); u32 imr; - DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq, + DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, d->irq, irq_dev->name, imr); /* Enable the IRQ line by setting the bit in the IMR */ @@ -140,31 +139,22 @@ static void gsc_asic_enable_irq(unsigned int irq) */ } -static unsigned int gsc_asic_startup_irq(unsigned int irq) -{ - gsc_asic_enable_irq(irq); - return 0; -} - -static struct hw_interrupt_type gsc_asic_interrupt_type = { - .typename = "GSC-ASIC", - .startup = gsc_asic_startup_irq, - .shutdown = gsc_asic_disable_irq, - .enable = gsc_asic_enable_irq, - .disable = gsc_asic_disable_irq, - .ack = no_ack_irq, - .end = no_end_irq, +static struct irq_chip gsc_asic_interrupt_type = { + .name = "GSC-ASIC", + .irq_unmask = gsc_asic_unmask_irq, + .irq_mask = gsc_asic_mask_irq, }; -int gsc_assign_irq(struct hw_interrupt_type *type, void *data) +int gsc_assign_irq(struct irq_chip *type, void *data) { static int irq = GSC_IRQ_BASE; if (irq > GSC_IRQ_MAX) return NO_IRQ; - irq_desc[irq].chip = type; - irq_desc[irq].chip_data = data; + irq_set_chip_and_handler(irq, type, handle_simple_irq); + irq_set_chip_data(irq, data); + return irq++; } @@ -182,29 +172,34 @@ void gsc_asic_assign_irq(struct gsc_asic *asic, int local_irq, int *irqp) *irqp = irq; } -static struct device *next_device(struct klist_iter *i) +struct gsc_fixup_struct { + void (*choose_irq)(struct parisc_device *, void *); + void *ctrl; +}; + +static int gsc_fixup_irqs_callback(struct device *dev, void *data) { - struct klist_node * n = klist_next(i); - return n ? container_of(n, struct device, knode_parent) : NULL; + struct parisc_device *padev = to_parisc_device(dev); + struct gsc_fixup_struct *gf = data; + + /* work-around for 715/64 and others which have parent + at path [5] and children at path [5/0/x] */ + if (padev->id.hw_type == HPHW_FAULTY) + gsc_fixup_irqs(padev, gf->ctrl, gf->choose_irq); + gf->choose_irq(padev, gf->ctrl); + + return 0; } void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl, void (*choose_irq)(struct parisc_device *, void *)) { - struct device *dev; - struct klist_iter i; - - klist_iter_init(&parent->dev.klist_children, &i); - while ((dev = next_device(&i))) { - struct parisc_device *padev = to_parisc_device(dev); - - /* work-around for 715/64 and others which have parent - at path [5] and children at path [5/0/x] */ - if (padev->id.hw_type == HPHW_FAULTY) - return gsc_fixup_irqs(padev, ctrl, choose_irq); - choose_irq(padev, ctrl); - } - klist_iter_exit(&i); + struct gsc_fixup_struct data = { + .choose_irq = choose_irq, + .ctrl = ctrl, + }; + + device_for_each_child(&parent->dev, &data, gsc_fixup_irqs_callback); } int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic) |