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0317e52e04
Add support for wakeup-mask style interrupts that share a single mask register for various different interrupts. This registers a set of interrupt->bit mappings and the register they belong to. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* arch/arm/plat-samsung/include/plat/wakeup-mask.h
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*
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* Copyright 2010 Ben Dooks <ben-linux@fluff.org>
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*
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* Support for wakeup mask interrupts on newer SoCs
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#ifndef __PLAT_WAKEUP_MASK_H
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#define __PLAT_WAKEUP_MASK_H __file__
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/* if no irq yet defined, but still want to mask */
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#define NO_WAKEUP_IRQ (0x90000000)
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/**
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* struct samsung_wakeup_mask - wakeup mask information
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* @irq: The interrupt associated with this wakeup.
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* @bit: The bit, as a (1 << bitno) controlling this source.
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*/
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struct samsung_wakeup_mask {
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unsigned int irq;
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u32 bit;
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};
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/**
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* samsung_sync_wakemask - sync wakeup mask information for pm
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* @reg: The register that is used.
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* @masks: The list of masks to use.
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* @nr_masks: The number of entries pointed to buy @masks.
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*
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* Synchronise the wakeup mask information at suspend time from the list
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* of interrupts and control bits in @masks. We do this at suspend time
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* as overriding the relevant irq chips is harder and the register is only
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* required to be correct before we enter sleep.
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*/
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extern void samsung_sync_wakemask(void __iomem *reg,
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struct samsung_wakeup_mask *masks,
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int nr_masks);
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#endif /* __PLAT_WAKEUP_MASK_H */
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