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authorStephen Warren <swarren@nvidia.com>2013-02-12 17:22:36 -0700
committerStephen Warren <swarren@nvidia.com>2013-04-05 12:23:14 -0600
commit71fab21fee07fd6d5f1a984db387cc5e4596f3fa (patch)
tree1c8a05c4eb2799b05498002002ef0a9590c08bf4 /include/dt-bindings/gpio
parentb40b25fff8205dd18124d8fc87b2c9c57f269b5f (diff)
downloadvexpress-lsk-71fab21fee07fd6d5f1a984db387cc5e4596f3fa.tar.gz
ARM: dt: add header to define GPIO flags
Many GPIO device tree bindings use the same flags. Create a header to define those. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Rob Herring <rob.herring@calxeda.com>
Diffstat (limited to 'include/dt-bindings/gpio')
-rw-r--r--include/dt-bindings/gpio/gpio.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/dt-bindings/gpio/gpio.h b/include/dt-bindings/gpio/gpio.h
new file mode 100644
index 00000000000..e6b1e0a808a
--- /dev/null
+++ b/include/dt-bindings/gpio/gpio.h
@@ -0,0 +1,15 @@
+/*
+ * This header provides constants for most GPIO bindings.
+ *
+ * Most GPIO bindings include a flags cell as part of the GPIO specifier.
+ * In most cases, the format of the flags cell uses the standard values
+ * defined in this header.
+ */
+
+#ifndef _DT_BINDINGS_GPIO_GPIO_H
+#define _DT_BINDINGS_GPIO_GPIO_H
+
+#define GPIO_ACTIVE_HIGH 0
+#define GPIO_ACTIVE_LOW 1
+
+#endif