Index: linux-2.6.35/arch/arm/mach-at91/gpio.c =================================================================== --- linux-2.6.35.orig/arch/arm/mach-at91/gpio.c 2011-09-27 14:36:06.587267689 -0500 +++ linux-2.6.35/arch/arm/mach-at91/gpio.c 2011-09-27 14:42:50.997576753 -0500 @@ -202,6 +202,26 @@ } EXPORT_SYMBOL(at91_set_gpio_output); +/* + * configure pin for output and enable/disable pullup + */ +int __init_or_module at91_set_gpio_output_with_pullup(unsigned pin, int value, int use_pullup) +{ + void __iomem *pio = pin_to_controller(pin); + unsigned mask = pin_to_mask(pin); + + if (!pio) + return -EINVAL; + + __raw_writel(mask, pio + PIO_IDR); + __raw_writel(mask, pio + (use_pullup ? PIO_PUER : PIO_PUDR)); + __raw_writel(mask, pio + (value ? PIO_SODR : PIO_CODR)); + __raw_writel(mask, pio + PIO_OER); + __raw_writel(mask, pio + PIO_PER); + return 0; +} +EXPORT_SYMBOL(at91_set_gpio_output_with_pullup); + /* * enable/disable the glitch filter; mostly used with IRQ handling. Index: linux-2.6.35/arch/arm/mach-at91/include/mach/gpio.h =================================================================== --- linux-2.6.35.orig/arch/arm/mach-at91/include/mach/gpio.h +++ linux-2.6.35/arch/arm/mach-at91/include/mach/gpio.h @@ -194,6 +194,7 @@ extern int __init_or_module at91_set_A_p extern int __init_or_module at91_set_B_periph(unsigned pin, int use_pullup); extern int __init_or_module at91_set_gpio_input(unsigned pin, int use_pullup); extern int __init_or_module at91_set_gpio_output(unsigned pin, int value); +extern int __init_or_module at91_set_gpio_output_with_pullup(unsigned pin, int value, int use_pullup); extern int __init_or_module at91_set_deglitch(unsigned pin, int is_on); extern int __init_or_module at91_set_multi_drive(unsigned pin, int is_on);