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mfd: tc3589x: Use simple irqdomain 

This fixes a regression in the TC3589x driver introduced in
commit 15e27b1088
"mfd: Provide the tc3589x with its own IRQ domain"

If a system with a TC3589x expander is booted and a base
IRQ is passed from platform data, a legacy domain will
be used. However, since the Ux500 is now switched to use
SPARSE_IRQ, no descriptors get allocated on-the-fly,
and we get a crash.

Fix this by switching to using the simple irqdomain that
will handle this uniformly and also allocates descriptors
explicitly.

Also fix two small whitespace errors in the vicinity while
we're at it.

Cc: stable@kernel.org
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Linus Walleij 2013-01-02 14:40:14 +01:00 committed by Samuel Ortiz
parent b30dd8f2e5
commit 1f0529b4d8
1 changed files with 5 additions and 12 deletions
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17
drivers/mfd/tc3589x.c
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@ -219,25 +219,18 @@ static void tc3589x_irq_unmap(struct irq_domain *d, unsigned int virq)
}
static struct irq_domain_ops tc3589x_irq_ops = {
.map = tc3589x_irq_map,
.map = tc3589x_irq_map,
.unmap = tc3589x_irq_unmap,
.xlate = irq_domain_xlate_twocell,
.xlate = irq_domain_xlate_twocell,
};
static int tc3589x_irq_init(struct tc3589x *tc3589x, struct device_node *np)
{
int base = tc3589x->irq_base;
if (base) {
tc3589x->domain = irq_domain_add_legacy(
NULL, TC3589x_NR_INTERNAL_IRQS, base,
0, &tc3589x_irq_ops, tc3589x);
}
else {
tc3589x->domain = irq_domain_add_linear(
np, TC3589x_NR_INTERNAL_IRQS,
&tc3589x_irq_ops, tc3589x);
}
tc3589x->domain = irq_domain_add_simple(
np, TC3589x_NR_INTERNAL_IRQS, base,
&tc3589x_irq_ops, tc3589x);
if (!tc3589x->domain) {
dev_err(tc3589x->dev, "Failed to create irqdomain\n");