[PATCH] pca953x: Minor include cleanup

[Olof Johansson]

linux/i2c/pca953x.h is a very bare include file. Fix check for multiple
includes of linux/i2c/pca953x.h, and add dependent includes into the
header file.

Signed-off-by: Olof Johansson <olof@xxxxxxxxx>

diff --git a/include/linux/i2c/pca953x.h b/include/linux/i2c/pca953x.h
index 81736d6..29699f8 100644
--- a/include/linux/i2c/pca953x.h
+++ b/include/linux/i2c/pca953x.h
@@ -1,3 +1,9 @@
+#ifndef _LINUX_PCA953X_H
+#define _LINUX_PCA953X_H
+
+#include <linux/types.h>
+#include <linux/i2c.h>
+
 /* platform data for the PCA9539 16-bit I/O expander driver */
 
 struct pca953x_platform_data {
@@ -17,3 +23,5 @@ struct pca953x_platform_data {
 				void *context);
 	char		**names;
 };
+
+#endif /* _LINUX_PCA953X_H */
--
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