projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 4490e3c6 KK |
1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | // | |
| 3 | // Copyright 2010 Ben Dooks <ben-linux@fluff.org> | |
| 4 | // | |
| 5 | // Support for wakeup mask interrupts on newer SoCs | |
| 0317e52e BD |
6 | |
| 7 | #include <linux/kernel.h> | |
| 8 | #include <linux/spinlock.h> | |
| edbaa603 | 9 | #include <linux/device.h> |
| 0317e52e BD |
10 | #include <linux/types.h> |
| 11 | #include <linux/irq.h> | |
| 12 | #include <linux/io.h> | |
| 13 | ||
| c6ff132d AB |
14 | #include "wakeup-mask.h" |
| 15 | #include "pm.h" | |
| 0317e52e BD |
16 | |
| 17 | void samsung_sync_wakemask(void __iomem *reg, | |
| 9060a417 | 18 | const struct samsung_wakeup_mask *mask, int nr_mask) |
| 0317e52e | 19 | { |
| 7222f391 | 20 | struct irq_data *data; |
| 0317e52e BD |
21 | u32 val; |
| 22 | ||
| 23 | val = __raw_readl(reg); | |
| 24 | ||
| 25 | for (; nr_mask > 0; nr_mask--, mask++) { | |
| 26 | if (mask->irq == NO_WAKEUP_IRQ) { | |
| 27 | val |= mask->bit; | |
| 28 | continue; | |
| 29 | } | |
| 30 | ||
| 7222f391 | 31 | data = irq_get_irq_data(mask->irq); |
| 0317e52e | 32 | |
| 7222f391 TG |
33 | /* bit of a liberty to read this directly from irq_data. */ |
| 34 | if (irqd_is_wakeup_set(data)) | |
| 0317e52e BD |
35 | val &= ~mask->bit; |
| 36 | else | |
| 37 | val |= mask->bit; | |
| 38 | } | |
| 39 | ||
| 40 | printk(KERN_INFO "wakemask %08x => %08x\n", __raw_readl(reg), val); | |
| 41 | __raw_writel(val, reg); | |
| 42 | } |