2 files changed, 32 insertions, 0 deletions

diff --git a/include/asm-arm/gpio.h b/include/asm-arm/gpio.h
new file mode 100644
index 000000000000..fff4f800ee42
--- /dev/null
+++ b/include/asm-arm/gpio.h
@@ -0,0 +1,7 @@
+#ifndef _ARCH_ARM_GPIO_H
+#define _ARCH_ARM_GPIO_H
+
+/* not all ARM platforms necessarily support this API ... */
+#include <asm/arch/gpio.h>
+
+#endif /* _ARCH_ARM_GPIO_H */
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
new file mode 100644
index 000000000000..2d0aab1d8611
--- /dev/null
+++ b/include/asm-generic/gpio.h
@@ -0,0 +1,25 @@
+#ifndef _ASM_GENERIC_GPIO_H
+#define _ASM_GENERIC_GPIO_H
+
+/* platforms that don't directly support access to GPIOs through I2C, SPI,
+ * or other blocking infrastructure can use these wrappers.
+ */
+
+static inline int gpio_cansleep(unsigned gpio)
+{
+        return 0;
+}
+
+static inline int gpio_get_value_cansleep(unsigned gpio)
+{
+        might_sleep();
+        return gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value_cansleep(unsigned gpio, int value)
+{
+        might_sleep();
+        gpio_set_value(gpio, value);
+}
+
+#endif /* _ASM_GENERIC_GPIO_H */