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sh: hd6446x: Convert to sparseirq.

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Follows the se7724 change and converts the hd64461 IRQ handling to
sparseirq.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2010-02-02 17:48:17 +09:00
parent c7a967273a
commit 6eb6f98396
2 changed files with 20 additions and 3 deletions
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2
arch/sh/Kconfig
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@ -731,7 +731,7 @@ config GUSA_RB
config SPARSE_IRQ config SPARSE_IRQ
def_bool y def_bool y
depends on SUPERH32 && !SH_DREAMCAST && !SH_HIGHLANDER && \ depends on SUPERH32 && !SH_DREAMCAST && !SH_HIGHLANDER && \
!SH_RTS7751R2D && !HD64461 !SH_RTS7751R2D
help help
This enables support for sparse irqs. This is useful in general This enables support for sparse irqs. This is useful in general
as most CPUs have a fairly sparse array of IRQ vectors, which as most CPUs have a fairly sparse array of IRQ vectors, which

21
arch/sh/cchips/hd6446x/hd64461.c
View file

@ -73,7 +73,7 @@ static void hd64461_irq_demux(unsigned int irq, struct irq_desc *desc)
int __init setup_hd64461(void) int __init setup_hd64461(void)
{ {
int i; int i, nid = cpu_to_node(boot_cpu_data);
if (!MACH_HD64461) if (!MACH_HD64461)
return 0; return 0;
@ -90,9 +90,26 @@ int __init setup_hd64461(void)
__raw_writew(0xffff, HD64461_NIMR); __raw_writew(0xffff, HD64461_NIMR);
/* IRQ 80 -> 95 belongs to HD64461 */ /* IRQ 80 -> 95 belongs to HD64461 */
for (i = HD64461_IRQBASE; i < HD64461_IRQBASE + 16; i++) for (i = HD64461_IRQBASE; i < HD64461_IRQBASE + 16; i++) {
unsigned int irq;
irq = create_irq_nr(i, nid);
if (unlikely(irq == 0)) {
pr_err("%s: failed hooking irq %d for HD64461\n",
__func__, i);
return -EBUSY;
}
if (unlikely(irq != i)) {
pr_err("%s: got irq %d but wanted %d, bailing.\n",
__func__, irq, i);
destroy_irq(irq);
return -EINVAL;
}
set_irq_chip_and_handler(i, &hd64461_irq_chip, set_irq_chip_and_handler(i, &hd64461_irq_chip,
handle_level_irq); handle_level_irq);
}
set_irq_chained_handler(CONFIG_HD64461_IRQ, hd64461_irq_demux); set_irq_chained_handler(CONFIG_HD64461_IRQ, hd64461_irq_demux);
set_irq_type(CONFIG_HD64461_IRQ, IRQ_TYPE_LEVEL_LOW); set_irq_type(CONFIG_HD64461_IRQ, IRQ_TYPE_LEVEL_LOW);