tree c6368843d0f54638dd911f8230f7cee1e731f117
parent 6ae85d6db4871d8dbcb5cc0e9056f97f1ca07061
author Eric Miao <eric.miao@marvell.com> 1240295947 +0800
committer Eric Miao <eric.miao@marvell.com> 1240803916 +0800

[ARM] pxa: fix issue of muxed GPIO irq_chip functions touching non-muxed GPIOs

pxa_gpio_irq_type() and pxa_unmask_muxed_gpio() will touch non-muxed GPIOs
(0 and 1 on PXA2xx/PXA3xx) bits in GRERx and GFERx, which is incorrect.
Actually, only those bits should get updated if the corresponding bits are
set in c->irq_mask as well. Fix this by updating only those relevant bits.

Reported-and-tested-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>