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mxc: emulate GPIO interrupt on both-edges
authorGuennadi Liakhovetski <lg@denx.de>
Thu, 12 Mar 2009 11:46:41 +0000 (12:46 +0100)
committerSascha Hauer <s.hauer@pengutronix.de>
Thu, 7 May 2009 14:16:06 +0000 (16:16 +0200)
MXC GPIO controller does not support generation of interrupts on both
edges. Emulate this mode in software by reconfiguring the irq trigger
polarity on each interrupt. This follows an example of
drivers/mfd/asic3.c.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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