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| author | Olof Johansson <olof@lixom.net> | 2014-01-02 23:45:27 +0400 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2014-01-02 23:45:27 +0400 |
| commit | a7dedb4fead89f88255862a9bc46f4c7ec094c2e (patch) | |
| tree | d07b09522364b895dc91ccd2d057668d2fa692c5 /include/asm-generic/word-at-a-time.h | |
| parent | 9dc9b8e51f95fce0cc3d50ef80402203d2dcd68a (diff) | |
| parent | 6075a8b2b6c32ddcb99b85189ae41ab2903e560f (diff) | |
| download | linux-a7dedb4fead89f88255862a9bc46f4c7ec094c2e.tar.xz | |
Merge tag 'davinci-for-v3.14/gpio' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers
From Sekhar Nori:
DaVinci GPIO driver updates
---------------------------
This pull request contains updates to DaVinci GPIO driver and the
resultant platform code changes. The updates include DT-conversion and
changes to make the driver cross-platform ready.
* tag 'davinci-for-v3.14/gpio' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
gpio: davinci: don't create irq_domain in case of unbanked irqs
gpio: davinci: use chained_irq_enter/chained_irq_exit API
gpio: davinci: add OF support
gpio: davinci: remove unused variable intc_irq_num
gpio: davinci: convert to use irqdomain support.
gpio: introduce GPIO_DAVINCI kconfig option
gpio: davinci: get rid of DAVINCI_N_GPIO
gpio: davinci: use {readl|writel}_relaxed() instead of __raw_*
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'include/asm-generic/word-at-a-time.h')
| -rw-r--r-- | include/asm-generic/word-at-a-time.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-generic/word-at-a-time.h b/include/asm-generic/word-at-a-time.h index 3f21f1b72e45..d3909effd725 100644 --- a/include/asm-generic/word-at-a-time.h +++ b/include/asm-generic/word-at-a-time.h @@ -49,4 +49,12 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct return (val + c->high_bits) & ~rhs; } +#ifndef zero_bytemask +#ifdef CONFIG_64BIT +#define zero_bytemask(mask) (~0ul << fls64(mask)) +#else +#define zero_bytemask(mask) (~0ul << fls(mask)) +#endif /* CONFIG_64BIT */ +#endif /* zero_bytemask */ + #endif /* _ASM_WORD_AT_A_TIME_H */ |