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author | Ingo Molnar <mingo@elte.hu> | 2008-06-25 12:32:01 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-06-25 12:32:01 +0200 |
commit | da7878d75b8520c9ae00d27dfbbce546a7bfdfbb (patch) | |
tree | 547fd497a80818a60ac36831377d5df97868173c /arch/blackfin/kernel/bfin_gpio.c | |
parent | 0e50a4c6ab94ffe7e5515b86b5df9e5abc8c6b13 (diff) | |
parent | 543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff) |
Merge branch 'linus' into x86/pebstip-x86-pebs-2008-06-25_10.32_Wed
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; |