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authorSekhar Nori <nsekhar@ti.com>2009-11-16 17:21:30 +0530
committerKevin Hilman <khilman@deeprootsystems.com>2010-01-06 08:57:44 -0800
commit2d3f595016f982294c1669ee87aa91179d88502b (patch)
treec3cc878c31abc541c27146d271abe24c8d0d9f55 /arch/arm
parent077639f443294a25b16e4040ca06a1611700a4ae (diff)
davinci: cp_intc: provide set_wake function
There is nothing special to be done for interrupts which can wakeup the device from sleep on CP-INTC, but not having a set_wake implemented prevents use of common drivers which expect this function to be implemented for all wakeup interrupt sources. This patch fixes the issue encountered when using the omap-rtc driver on DA850. On DA850 the RTC alarm interrupt is used to wake up the SoC from deep sleep mode. Without this patch, the disable_irq_wake throws an unbalanced wake disable warning while resuming because the previous enable call fails for lack of set_wake implementation. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-davinci/cp_intc.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/cp_intc.c b/arch/arm/mach-davinci/cp_intc.c
index 52b287cf3a4..37311d1830e 100644
--- a/arch/arm/mach-davinci/cp_intc.c
+++ b/arch/arm/mach-davinci/cp_intc.c
@@ -81,12 +81,23 @@ static int cp_intc_set_irq_type(unsigned int irq, unsigned int flow_type)
return 0;
}
+/*
+ * Faking this allows us to to work with suspend functions of
+ * generic drivers which call {enable|disable}_irq_wake for
+ * wake up interrupt sources (eg RTC on DA850).
+ */
+static int cp_intc_set_wake(unsigned int irq, unsigned int on)
+{
+ return 0;
+}
+
static struct irq_chip cp_intc_irq_chip = {
.name = "cp_intc",
.ack = cp_intc_ack_irq,
.mask = cp_intc_mask_irq,
.unmask = cp_intc_unmask_irq,
.set_type = cp_intc_set_irq_type,
+ .set_wake = cp_intc_set_wake,
};
void __init cp_intc_init(void __iomem *base, unsigned short num_irq,