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regmap: add a new macro:REGMAP_IRQ_REG_LINE(_id, _reg_bits)

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if there are lots of irqs for a device and the register addresses for these
irqs is continuous, we can use this macro to initialize regmap_irq value.

Signed-off-by: Tony Xie <tony.xie@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Tony Xie 2018-10-30 18:07:56 +08:00 committed by Mark Brown
parent 651022382c
commit 43fac3238c
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1 changed files with 6 additions and 0 deletions
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6
include/linux/regmap.h
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@ -1110,6 +1110,12 @@ struct regmap_irq {
#define REGMAP_IRQ_REG(_irq, _off, _mask) \
[_irq] = { .reg_offset = (_off), .mask = (_mask) }
#define REGMAP_IRQ_REG_LINE(_id, _reg_bits) \
[_id] = { \
.mask = BIT((_id) % (_reg_bits)), \
.reg_offset = (_id) / (_reg_bits), \
}
/**
* struct regmap_irq_chip - Description of a generic regmap irq_chip.
*