diff --git a/[refs] b/[refs]
index b94d9566d8b6..a678b9d7d858 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 041af835b343d5f0d0615e20881f5974c9b1e566
+refs/heads/master: 81397a625d063403d80a25bba00fa1cb6d7e04f5
diff --git a/trunk/arch/arm/mach-lpc32xx/include/mach/gpio.h b/trunk/arch/arm/mach-lpc32xx/include/mach/gpio.h
index e69de29bb2d1..40a8c178f10d 100644
--- a/trunk/arch/arm/mach-lpc32xx/include/mach/gpio.h
+++ b/trunk/arch/arm/mach-lpc32xx/include/mach/gpio.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/trunk/arch/arm/mach-tegra/include/mach/gpio.h b/trunk/arch/arm/mach-tegra/include/mach/gpio.h
index e69de29bb2d1..40a8c178f10d 100644
--- a/trunk/arch/arm/mach-tegra/include/mach/gpio.h
+++ b/trunk/arch/arm/mach-tegra/include/mach/gpio.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/trunk/arch/arm/mach-u300/include/mach/gpio.h b/trunk/arch/arm/mach-u300/include/mach/gpio.h
index e69de29bb2d1..40a8c178f10d 100644
--- a/trunk/arch/arm/mach-u300/include/mach/gpio.h
+++ b/trunk/arch/arm/mach-u300/include/mach/gpio.h
@@ -0,0 +1 @@
+/* empty */