imx/gpio: Use handle_level_irq
According to Russell King handle_edge_irq is only useful for "edge-based inputs where the controller does not remember transitions with the input masked." So using handle_edge_irq unconditionally for both edge and level irqs is wrong. Testing showed that the controller does remember transitions while the interrupt is masked. So use handle_level_irq unconditionally. Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
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