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mfd: Support dynamic allocation of IRQ range for wm831x

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Use irq_allocate_desc() to get the IRQ range, which turns into a noop on
non-sparse systems. Since all existing users are non-sparse there should
be no compatibility issues.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark Brown
2011-06-02 19:18:51 +01:00
committed by Samuel Ortiz
parent b9d03d999b
commit 5c05a8d1f0
2 changed files with 14 additions and 6 deletions
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2
include/linux/mfd/wm831x/core.h
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@@ -262,7 +262,7 @@ struct wm831x {
int irq; /* Our chip IRQ */
struct mutex irq_lock;
unsigned int irq_base;
int irq_base;
int irq_masks_cur[WM831X_NUM_IRQ_REGS]; /* Currently active value */
int irq_masks_cache[WM831X_NUM_IRQ_REGS]; /* Cached hardware value */