[PATCH 02/14] mfd: ab8500: provide a irq_set_type() function

[Linus Walleij]

From: Lee Jones <lee.jones at linaro.org>

In the AB8500 IRQ mask and unmask functions, we rely on testing for
IRQ_TYPE_EDGE_RISING and IRQ_TYPE_EDGE_FALLING interrupts to
physically mask and unmask the correct interrupt lines. In order
for us to do that, the trigger needs to be set in the associated
flags. However, unless a irq_set_type() function pointer is passed
when registering the IRQ chip, the IRQ subsystem will refuse to do
it. For that reason, we're providing one.

Cc: Samuel Ortiz <sameo at linux.intel.com>
Signed-off-by: Lee Jones <lee.jones at linaro.org>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
Sam, it'd be nice if you could ACK these first four patches,
the series basically simplifies things a lot by not cascading
the AB8500 IRQs and duplicate code in the pinctrl driver.
---
 drivers/mfd/ab8500-core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index e1ba0be..aa5937e 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -403,6 +403,11 @@ static void ab8500_irq_unmask(struct irq_data *data)
 		ab8500->mask[index] &= ~mask;
 }
 
+static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
+{
+	return 0;
+}
+
 static struct irq_chip ab8500_irq_chip = {
 	.name			= "ab8500",
 	.irq_bus_lock		= ab8500_irq_lock,
@@ -410,6 +415,7 @@ static struct irq_chip ab8500_irq_chip = {
 	.irq_mask		= ab8500_irq_mask,
 	.irq_disable		= ab8500_irq_mask,
 	.irq_unmask		= ab8500_irq_unmask,
+	.irq_set_type		= ab8500_irq_set_type,
 };
 
 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
-- 
1.7.11.3