mmc: pxamci: better pending IRQ determination
Pending interrupts should be determined from both I_REG and I_MASK registers. Signed-off-by: Bridge Wu <mingqiao.wu@gmail.com> Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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