diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:20:28 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:20:28 +0200 |
commit | faeca31d068090285b77c39574d2bda14b079c50 (patch) | |
tree | 789841a7f0d336b24a74f2191542a2eb8177c8fa /arch/blackfin/kernel/bfin_gpio.c | |
parent | 499f8f84b8324ba27d756e03f373fa16eeed9ccc (diff) | |
parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) |
Merge branch 'linus' into x86/pattip-x86-pat-2008-06-16_09.20_Mon
Diffstat (limited to 'arch/blackfin/kernel/bfin_gpio.c')
-rw-r--r-- | arch/blackfin/kernel/bfin_gpio.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index 7e8eaf4a31bb..b6d89d1644cc 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -1130,6 +1130,25 @@ void bfin_gpio_irq_prepare(unsigned gpio) #else +int gpio_get_value(unsigned gpio) +{ + unsigned long flags; + int ret; + + if (unlikely(get_gpio_edge(gpio))) { + local_irq_save(flags); + set_gpio_edge(gpio, 0); + ret = get_gpio_data(gpio); + set_gpio_edge(gpio, 1); + local_irq_restore(flags); + + return ret; + } else + return get_gpio_data(gpio); +} +EXPORT_SYMBOL(gpio_get_value); + + int gpio_direction_input(unsigned gpio) { unsigned long flags; |