regulator: msm: Add snapshot of the stub regulator driver

This is a snapshot of the Documentation and header file for
the stub regulator driver as of msm-3.18 kernel commit:
2642c0adc79c06c0f3225da0177e910a1cea8cb5 ("Merge "ARM: dts:
msm: Add support for truly 720p command mode panel on msmgold"")

Signed-off-by: Devesh Jhunjhunwala <deveshj@codeaurora.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/include/linux/regulator/stub-regulator.h b/include/linux/regulator/stub-regulator.h
new file mode 100644
index 000000000000..1155d82ba27b
--- /dev/null
+++ b/include/linux/regulator/stub-regulator.h
@@ -0,0 +1,54 @@
+/* Copyright (c) 2012, The Linux Foundation. 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 __STUB_REGULATOR_H__
+#define __STUB_REGULATOR_H__
+
+#include <linux/regulator/machine.h>
+
+#define STUB_REGULATOR_DRIVER_NAME "stub-regulator"
+
+/**
+ * struct stub_regulator_pdata - stub regulator device data
+ * @init_data:		regulator constraints
+ * @hpm_min_load:	minimum load in uA that will result in the regulator
+ *			being set to high power mode
+ * @system_uA:		current drawn from regulator not accounted for by any
+ *			regulator framework consumer
+ */
+struct stub_regulator_pdata {
+	struct regulator_init_data	init_data;
+	int				hpm_min_load;
+	int				system_uA;
+};
+
+#ifdef CONFIG_REGULATOR_STUB
+
+/**
+ * regulator_stub_init() - register platform driver for stub-regulator
+ *
+ * This initialization function should be called in systems in which driver
+ * registration ordering must be controlled precisely.
+ */
+
+int __init regulator_stub_init(void);
+
+#else
+
+static inline int __init regulator_stub_init(void)
+{
+	return -ENODEV;
+}
+
+#endif /* CONFIG_REGULATOR_STUB */
+
+#endif