diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-03-01 17:50:33 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-03-24 09:37:36 +0000 |
| commit | b4ac08492d06e4f2cea24a5b2579b4b0a0f537ce (patch) | |
| tree | ae05498ea8feee6cc3fb1af8b74bbb0ccacbb88c /arch | |
| parent | c402c110721ed53916595473aed1013acde95bab (diff) | |
ARM: riscpc: convert ecard to use irq_alloc_descs()
Use irq_alloc_descs() to allocate IRQs for expansion cards.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-rpc/ecard.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c index ec84cfde4ad7..1a6cfc8ca277 100644 --- a/arch/arm/mach-rpc/ecard.c +++ b/arch/arm/mach-rpc/ecard.c @@ -42,6 +42,7 @@ #include <linux/init.h> #include <linux/mutex.h> #include <linux/kthread.h> +#include <linux/irq.h> #include <linux/io.h> #include <asm/dma.h> @@ -977,8 +978,7 @@ EXPORT_SYMBOL(ecardm_iomap); * If bit 1 of the first byte of the card is set, then the * card does not exist. */ -static int __init -ecard_probe(int slot, card_type_t type) +static int __init ecard_probe(int slot, unsigned irq, card_type_t type) { ecard_t **ecp; ecard_t *ec; @@ -1032,19 +1032,18 @@ ecard_probe(int slot, card_type_t type) break; } + ec->irq = irq; + /* * hook the interrupt handlers */ if (slot < 8) { - ec->irq = 32 + slot; irq_set_chip_and_handler(ec->irq, &ecard_chip, handle_level_irq); irq_set_chip_data(ec->irq, ec); set_irq_flags(ec->irq, IRQF_VALID); } - if (slot == 8) - ec->irq = 11; #ifdef CONFIG_ARCH_RPC /* On RiscPC, only first two slots have DMA capability */ if (slot < 2) @@ -1074,23 +1073,28 @@ ecard_probe(int slot, card_type_t type) static int __init ecard_init(void) { struct task_struct *task; - int slot, irqhw; + int slot, irqhw, irqbase; + + irqbase = irq_alloc_descs(-1, 0, 8, -1); + if (irqbase < 0) + return irqbase; task = kthread_run(ecard_task, NULL, "kecardd"); if (IS_ERR(task)) { printk(KERN_ERR "Ecard: unable to create kernel thread: %ld\n", PTR_ERR(task)); + irq_free_descs(irqbase, 8); return PTR_ERR(task); } printk("Probing expansion cards\n"); for (slot = 0; slot < 8; slot ++) { - if (ecard_probe(slot, ECARD_EASI) == -ENODEV) - ecard_probe(slot, ECARD_IOC); + if (ecard_probe(slot, irqbase + slot, ECARD_EASI) == -ENODEV) + ecard_probe(slot, irqbase + slot, ECARD_IOC); } - ecard_probe(8, ECARD_IOC); + ecard_probe(8, 11, ECARD_IOC); irqhw = ecard_probeirqhw(); |