[ARM] msm: vreg interface to msm7k pmic

The baseband cpu owns the pmic, so voltage regulator control is only
available via a relatively limited interface through the proc_comm
transport.

Signed-off-by: Brian Swetland <swetland@google.com>

arch/arm/mach-msm/include/mach/vreg.h

@@ -0,0 +1,29 @@
+/* linux/include/asm-arm/arch-msm/vreg.h
+ *
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Brian Swetland <swetland@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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 __ARCH_ARM_MACH_MSM_VREG_H
+#define __ARCH_ARM_MACH_MSM_VREG_H
+
+struct vreg;
+
+struct vreg *vreg_get(struct device *dev, const char *id);
+void vreg_put(struct vreg *vreg);
+
+int vreg_enable(struct vreg *vreg);
+void vreg_disable(struct vreg *vreg);
+int vreg_set_level(struct vreg *vreg, unsigned mv);
+
+#endif