diff options
| author |   Tony Xie <tony.xie@rock-chips.com> | 2018-10-30 18:07:56 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2018-11-14 14:20:45 -0800 |
| commit | 43fac3238c1d9363b2a93d8d56c2be0c29c64e6c (patch) | |
| tree | cd92edbc17e84b16904ec38f23b69b4324e79b41 /include/linux/regmap.h | |
| parent | Linux 4.20-rc1 (diff) | |
| download | linux-dev-43fac3238c1d9363b2a93d8d56c2be0c29c64e6c.tar.xz linux-dev-43fac3238c1d9363b2a93d8d56c2be0c29c64e6c.zip | |
regmap: add a new macro:REGMAP_IRQ_REG_LINE(_id, _reg_bits)
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>
Diffstat (limited to 'include/linux/regmap.h')
| -rw-r--r-- | include/linux/regmap.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index a367d59c301d..3930f3331652 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -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. * |