1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/include/mach/msm_gpiomux.h b/arch/arm/mach-msm/include/mach/msm_gpiomux.h
new file mode 100644
index 0000000..0c7d393
--- /dev/null
+++ b/arch/arm/mach-msm/include/mach/msm_gpiomux.h
@@ -0,0 +1,38 @@
+/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_MSM_GPIOMUX_H
+#define _LINUX_MSM_GPIOMUX_H
+
+#ifdef CONFIG_MSM_GPIOMUX
+
+/* Increment a gpio's reference count, possibly activating the line. */
+int __must_check msm_gpiomux_get(unsigned gpio);
+
+/* Decrement a gpio's reference count, possibly suspending the line. */
+int msm_gpiomux_put(unsigned gpio);
+
+#else
+
+static inline int __must_check msm_gpiomux_get(unsigned gpio)
+{
+	return -ENOSYS;
+}
+
+static inline int msm_gpiomux_put(unsigned gpio)
+{
+	return -ENOSYS;
+}
+
+#endif
+
+#endif /* _LINUX_MSM_GPIOMUX_H */