diff options
| author | Alexander Shiyan <shc_work@mail.ru> | 2013-12-15 04:36:51 -0500 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-12-16 15:50:13 -0500 |
| commit | d3233433356aa1965b60b08ee61465b20e50474b (patch) | |
| tree | cd693a91f65f5c2aa937047459fd6f3d49fcd719 /include/linux/regmap.h | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
regmap: irq: Allow using zero value for ack_base
In some cases, clear interrupt register may be at address 0.
This patch allows to use such configurations by adding additional
configuration bit to indicate this.
[With doc fix from Levente Kurusa <levex@linux.com> -- broonie]
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'include/linux/regmap.h')
| -rw-r--r-- | include/linux/regmap.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index e55907804d39..c9e5fb197eb6 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h | |||
| @@ -497,11 +497,13 @@ struct regmap_irq { | |||
| 497 | * | 497 | * |
| 498 | * @status_base: Base status register address. | 498 | * @status_base: Base status register address. |
| 499 | * @mask_base: Base mask register address. | 499 | * @mask_base: Base mask register address. |
| 500 | * @ack_base: Base ack address. If zero then the chip is clear on read. | 500 | * @ack_base: Base ack address. If zero then the chip is clear on read. |
| 501 | * Using zero value is possible with @use_ack bit. | ||
| 501 | * @wake_base: Base address for wake enables. If zero unsupported. | 502 | * @wake_base: Base address for wake enables. If zero unsupported. |
| 502 | * @irq_reg_stride: Stride to use for chips where registers are not contiguous. | 503 | * @irq_reg_stride: Stride to use for chips where registers are not contiguous. |
| 503 | * @init_ack_masked: Ack all masked interrupts once during initalization. | 504 | * @init_ack_masked: Ack all masked interrupts once during initalization. |
| 504 | * @mask_invert: Inverted mask register: cleared bits are masked out. | 505 | * @mask_invert: Inverted mask register: cleared bits are masked out. |
| 506 | * @use_ack: Use @ack register even if it is zero. | ||
| 505 | * @wake_invert: Inverted wake register: cleared bits are wake enabled. | 507 | * @wake_invert: Inverted wake register: cleared bits are wake enabled. |
| 506 | * @runtime_pm: Hold a runtime PM lock on the device when accessing it. | 508 | * @runtime_pm: Hold a runtime PM lock on the device when accessing it. |
| 507 | * | 509 | * |
| @@ -520,6 +522,7 @@ struct regmap_irq_chip { | |||
| 520 | unsigned int irq_reg_stride; | 522 | unsigned int irq_reg_stride; |
| 521 | bool init_ack_masked:1; | 523 | bool init_ack_masked:1; |
| 522 | bool mask_invert:1; | 524 | bool mask_invert:1; |
| 525 | bool use_ack:1; | ||
| 523 | bool wake_invert:1; | 526 | bool wake_invert:1; |
| 524 | bool runtime_pm:1; | 527 | bool runtime_pm:1; |
| 525 | 528 | ||