Title: [5988] trunk/arch/blackfin/kernel/bfin_gpio.c: Task [#4274] reset POLAR setting when acquiring a gpio for the first time
- Revision
- 5988
- Author
- hennerich
- Date
- 2009-01-09 08:02:48 -0600 (Fri, 09 Jan 2009)
Log Message
Task [#4274] reset POLAR setting when acquiring a gpio for the first time
Modified Paths
Diff
Modified: trunk/arch/blackfin/kernel/bfin_gpio.c (5987 => 5988)
--- trunk/arch/blackfin/kernel/bfin_gpio.c 2009-01-09 13:21:47 UTC (rev 5987)
+++ trunk/arch/blackfin/kernel/bfin_gpio.c 2009-01-09 14:02:48 UTC (rev 5988)
@@ -1053,9 +1053,15 @@
local_irq_restore_hw(flags);
return -EBUSY;
}
- if (unlikely(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio)))
+ if (unlikely(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
printk(KERN_NOTICE "bfin-gpio: GPIO %d is already reserved as gpio-irq!"
" (Documentation/blackfin/bfin-gpio-notes.txt)\n", gpio);
+ }
+#ifndef BF548_FAMILY
+ else { /* Reset POLAR setting when acquiring a gpio for the first time */
+ set_gpio_polar(gpio, 0);
+ }
+#endif
reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
set_label(gpio, label);
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