| /* 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/device.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); |
| } |
