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regmap: Implement support for wake IRQs

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Allow chips to provide a bank of registers for controlling the wake state
in a similar fashion to the masks and propagate the wake count to the
parent interrupt controller.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2012-06-05 14:34:03 +01:00
parent bfd6185dde
commit a43fd50dc9
2 changed files with 49 additions and 0 deletions
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2
include/linux/regmap.h
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@ -219,6 +219,7 @@ struct regmap_irq {
* @status_base: Base status register address.
* @mask_base: Base mask register address.
* @ack_base: Base ack address. If zero then the chip is clear on read.
* @wake_base: Base address for wake enables. If zero unsupported.
* @irq_reg_stride: Stride to use for chips where registers are not contiguous.
*
* @num_regs: Number of registers in each control bank.
@ -232,6 +233,7 @@ struct regmap_irq_chip {
unsigned int status_base;
unsigned int mask_base;
unsigned int ack_base;
unsigned int wake_base;
unsigned int irq_reg_stride;
int num_regs;