[ARM] pxa: add GPIO expander (PCA9539) support for zylonite
And also reserve 32 IRQs for the two GPIO expanders.
Signed-off-by:
Eric Miao <eric.miao@marvell.com>
Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
parent
9c1db1a1
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