diff options
Diffstat (limited to 'multitech/recipes/linux/linux-2.6.35/mt100eocg/linux-2.6.35.14-at91-gpio-pullup.patch')
-rw-r--r-- | multitech/recipes/linux/linux-2.6.35/mt100eocg/linux-2.6.35.14-at91-gpio-pullup.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/multitech/recipes/linux/linux-2.6.35/mt100eocg/linux-2.6.35.14-at91-gpio-pullup.patch b/multitech/recipes/linux/linux-2.6.35/mt100eocg/linux-2.6.35.14-at91-gpio-pullup.patch new file mode 100644 index 0000000..d967838 --- /dev/null +++ b/multitech/recipes/linux/linux-2.6.35/mt100eocg/linux-2.6.35.14-at91-gpio-pullup.patch @@ -0,0 +1,43 @@ +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); + |