mirror of
https://github.com/torvalds/linux.git
synced 2024-11-02 10:11:36 +00:00
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/* arch/arm/plat-samsung/wakeup-mask.c
|
|
*
|
|
* Copyright 2010 Ben Dooks <ben-linux@fluff.org>
|
|
*
|
|
* Support for wakeup mask interrupts on newer SoCs
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/sysdev.h>
|
|
#include <linux/types.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <plat/wakeup-mask.h>
|
|
#include <plat/pm.h>
|
|
|
|
void samsung_sync_wakemask(void __iomem *reg,
|
|
struct samsung_wakeup_mask *mask, int nr_mask)
|
|
{
|
|
struct irq_data *data;
|
|
u32 val;
|
|
|
|
val = __raw_readl(reg);
|
|
|
|
for (; nr_mask > 0; nr_mask--, mask++) {
|
|
if (mask->irq == NO_WAKEUP_IRQ) {
|
|
val |= mask->bit;
|
|
continue;
|
|
}
|
|
|
|
data = irq_get_irq_data(mask->irq);
|
|
|
|
/* bit of a liberty to read this directly from irq_data. */
|
|
if (irqd_is_wakeup_set(data))
|
|
val &= ~mask->bit;
|
|
else
|
|
val |= mask->bit;
|
|
}
|
|
|
|
printk(KERN_INFO "wakemask %08x => %08x\n", __raw_readl(reg), val);
|
|
__raw_writel(val, reg);
|
|
}
|