diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2010-02-02 17:48:17 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-02-02 17:48:17 +0900 |
| commit | 6eb6f98396f7bd653d8fb15b06364c8c7d70e22c (patch) | |
| tree | 51155eac621a7cee65d6b3b17fe78d167d3e3945 | |
| parent | c7a967273a539a9a38413753c58125e777e2d30d (diff) | |
sh: hd6446x: Convert to sparseirq.
Follows the se7724 change and converts the hd64461 IRQ handling to
sparseirq.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/sh/Kconfig | 2 | ||||
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64461.c | 21 |
2 files changed, 20 insertions, 3 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 0f023bb62f9..9e565d962dc 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -731,7 +731,7 @@ config GUSA_RB config SPARSE_IRQ def_bool y depends on SUPERH32 && !SH_DREAMCAST && !SH_HIGHLANDER && \ - !SH_RTS7751R2D && !HD64461 + !SH_RTS7751R2D help This enables support for sparse irqs. This is useful in general as most CPUs have a fairly sparse array of IRQ vectors, which diff --git a/arch/sh/cchips/hd6446x/hd64461.c b/arch/sh/cchips/hd6446x/hd64461.c index cbfedfb42e0..b447091fc06 100644 --- a/arch/sh/cchips/hd6446x/hd64461.c +++ b/arch/sh/cchips/hd6446x/hd64461.c @@ -73,7 +73,7 @@ static void hd64461_irq_demux(unsigned int irq, struct irq_desc *desc) int __init setup_hd64461(void) { - int i; + int i, nid = cpu_to_node(boot_cpu_data); if (!MACH_HD64461) return 0; @@ -90,9 +90,26 @@ int __init setup_hd64461(void) __raw_writew(0xffff, HD64461_NIMR); /* 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, handle_level_irq); + } set_irq_chained_handler(CONFIG_HD64461_IRQ, hd64461_irq_demux); set_irq_type(CONFIG_HD64461_IRQ, IRQ_TYPE_LEVEL_LOW); |