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-rw-r--r--Documentation/gpio.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt
index 218a8650f48d..6bc2ba215df9 100644
--- a/Documentation/gpio.txt
+++ b/Documentation/gpio.txt
@@ -148,7 +148,7 @@ pin ... that won't always match the specified output value, because of
148issues including wire-OR and output latencies. 148issues including wire-OR and output latencies.
149 149
150The get/set calls have no error returns because "invalid GPIO" should have 150The get/set calls have no error returns because "invalid GPIO" should have
151been reported earlier in gpio_set_direction(). However, note that not all 151been reported earlier from gpio_direction_*(). However, note that not all
152platforms can read the value of output pins; those that can't should always 152platforms can read the value of output pins; those that can't should always
153return zero. Also, using these calls for GPIOs that can't safely be accessed 153return zero. Also, using these calls for GPIOs that can't safely be accessed
154without sleeping (see below) is an error. 154without sleeping (see below) is an error.
@@ -239,7 +239,7 @@ map between them using calls like:
239Those return either the corresponding number in the other namespace, or 239Those return either the corresponding number in the other namespace, or
240else a negative errno code if the mapping can't be done. (For example, 240else a negative errno code if the mapping can't be done. (For example,
241some GPIOs can't used as IRQs.) It is an unchecked error to use a GPIO 241some GPIOs can't used as IRQs.) It is an unchecked error to use a GPIO
242number that hasn't been marked as an input using gpio_set_direction(), or 242number that wasn't set up as an input using gpio_direction_input(), or
243to use an IRQ number that didn't originally come from gpio_to_irq(). 243to use an IRQ number that didn't originally come from gpio_to_irq().
244 244
245These two mapping calls are expected to cost on the order of a single 245These two mapping calls are expected to cost on the order of a single