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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 12:06:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 12:06:33 -0700 |
| commit | ec96e2fe954c23a54bfdf2673437a39e193a1822 (patch) | |
| tree | e4041c68ef20a3337c56aefc8db785156307edd1 /arch/arm/plat-samsung/wakeup-mask.c | |
| parent | 8e9815a0f8882aaa68645b001bb7538db8886802 (diff) | |
| parent | f949c0edd84101bfd30b3e7389c1a12b067e561d (diff) | |
| download | kernel_samsung_smdk4412-ec96e2fe954c23a54bfdf2673437a39e193a1822.tar.gz kernel_samsung_smdk4412-ec96e2fe954c23a54bfdf2673437a39e193a1822.tar.bz2 kernel_samsung_smdk4412-ec96e2fe954c23a54bfdf2673437a39e193a1822.zip | |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits)
ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900
ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
ARM: 6140/1: silence a bogus sparse warning in unwind.c
ARM: mach-at91: duplicated include
ARM: arch/arm/nwfpe/fpsr.h: Checkpatch cleanup
ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup
ARM: arch/arm/nwfpe/ChangeLog: Checkpatch cleanup
ARM: arch/arm/mach-sa1100/leds.c: Checkpatch cleanup
ARM: arch/arm/mach-h720x/common.h: Checkpatch cleanup
ARM: arch/arm/mach-footbridge/ebsa285-pci.c: Checkpatch cleanup
ARM: arch/arm/mach-clps711x/Makefile.boot: Checkpatch cleanup
ARM: arch/arm/boot/bootp/bootp.lds: Checkpatch cleanup
ARM: SPEAR6xx: remove duplicated #include
ARM: s3c6400_defconfig: Add NAND driver
ARM: s3c6400_defconfig: enable sound as modules
ARM: s3c6400_defconfig: enable power management
ARM: s5pv210_defconfig: Update s5pv210_defconfig to v2.6.34
ARM: s5pc110_defconfig: Update s5pc110_defconfig to v2.6.34
ARM: s5p6442_defconfig: Update s5p6442_defconfig to v2.6.34
ARM: s5p6440_defconfig: Update s5p6440_defconfig to v2.6.34
...
Diffstat (limited to 'arch/arm/plat-samsung/wakeup-mask.c')
| -rw-r--r-- | arch/arm/plat-samsung/wakeup-mask.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/wakeup-mask.c b/arch/arm/plat-samsung/wakeup-mask.c new file mode 100644 index 00000000000..2e09b6ad84c --- /dev/null +++ b/arch/arm/plat-samsung/wakeup-mask.c @@ -0,0 +1,47 @@ +/* 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_desc *desc; + u32 val; + + val = __raw_readl(reg); + + for (; nr_mask > 0; nr_mask--, mask++) { + if (mask->irq == NO_WAKEUP_IRQ) { + val |= mask->bit; + continue; + } + + desc = irq_to_desc(mask->irq); + + /* bit of a liberty to read this directly from irq_desc. */ + if (desc->wake_depth > 0) + val &= ~mask->bit; + else + val |= mask->bit; + } + + printk(KERN_INFO "wakemask %08x => %08x\n", __raw_readl(reg), val); + __raw_writel(val, reg); +} |