4 files changed, 61 insertions, 3 deletions

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 030d92255c7a..ebd747265294 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -89,8 +89,9 @@
  * REGULATION_OUT Regulator output is out of regulation.
  * FAIL           Regulator output has failed.
  * OVER_TEMP      Regulator over temp.
- * FORCE_DISABLE  Regulator shut down by software.
+ * FORCE_DISABLE  Regulator forcibly shut down by software.
  * VOLTAGE_CHANGE Regulator voltage changed.
+ * DISABLE        Regulator was disabled.
  *
  * NOTE: These events can be OR'ed together when passed into handler.
  */
@@ -102,6 +103,7 @@
 #define REGULATOR_EVENT_OVER_TEMP               0x10
 #define REGULATOR_EVENT_FORCE_DISABLE           0x20
 #define REGULATOR_EVENT_VOLTAGE_CHANGE          0x40
+#define REGULATOR_EVENT_DISABLE                 0x80
 
 struct regulator;
 
@@ -181,9 +183,13 @@ static inline struct regulator *__must_check regulator_get(struct device *dev,
 {
         /* Nothing except the stubbed out regulator API should be
          * looking at the value except to check if it is an error
-         * value so the actual return value doesn't matter.
+         * value. Drivers are free to handle NULL specifically by
+         * skipping all regulator API calls, but they don't have to.
+         * Drivers which don't, should make sure they properly handle
+         * corner cases of the API, such as regulator_get_voltage()
+         * returning 0.
          */
-        return (struct regulator *)id;
+        return NULL;
 }
 static inline void regulator_put(struct regulator *regulator)
 {
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 31f2055eae28..592cd7c642c2 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -58,6 +58,9 @@ enum regulator_status {
  * @get_optimum_mode: Get the most efficient operating mode for the regulator
  *                    when running with the specified parameters.
  *
+ * @enable_time: Time taken for the regulator voltage output voltage to
+ *               stabalise after being enabled, in microseconds.
+ *
  * @set_suspend_voltage: Set the voltage for the regulator when the system
  *                       is suspended.
  * @set_suspend_enable: Mark the regulator as enabled when the system is
@@ -93,6 +96,9 @@ struct regulator_ops {
         int (*set_mode) (struct regulator_dev *, unsigned int mode);
         unsigned int (*get_mode) (struct regulator_dev *);
 
+        /* Time taken to enable the regulator */
+        int (*enable_time) (struct regulator_dev *);
+
         /* report regulator status ... most other accessors report
          * control inputs, this reports results of combining inputs
          * from Linux (and other sources) with the actual load.
diff --git a/include/linux/regulator/fixed.h b/include/linux/regulator/fixed.h
index e94a4a1c7c8a..ffd7d508e726 100644
--- a/include/linux/regulator/fixed.h
+++ b/include/linux/regulator/fixed.h
@@ -25,6 +25,7 @@ struct regulator_init_data;
  * @microvolts:         Output voltage of regulator
  * @gpio:               GPIO to use for enable control
  *                      set to -EINVAL if not used
+ * @startup_delay:      Start-up time in microseconds
  * @enable_high:        Polarity of enable GPIO
  *                      1 = Active high, 0 = Active low
  * @enabled_at_boot:    Whether regulator has been enabled at
@@ -41,6 +42,7 @@ struct fixed_voltage_config {
         const char *supply_name;
         int microvolts;
         int gpio;
+        unsigned startup_delay;
         unsigned enable_high:1;
         unsigned enabled_at_boot:1;
         struct regulator_init_data *init_data;
diff --git a/include/linux/regulator/max8649.h b/include/linux/regulator/max8649.h
new file mode 100644
index 000000000000..417d14ecd5cb
--- /dev/null
+++ b/include/linux/regulator/max8649.h
@@ -0,0 +1,44 @@
+/*
+ * Interface of Maxim max8649
+ *
+ * Copyright (C) 2009-2010 Marvell International Ltd.
+ *      Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __LINUX_REGULATOR_MAX8649_H
+#define __LINUX_REGULATOR_MAX8649_H
+
+#include <linux/regulator/machine.h>
+
+enum {
+        MAX8649_EXTCLK_26MHZ = 0,
+        MAX8649_EXTCLK_13MHZ,
+        MAX8649_EXTCLK_19MHZ,   /* 19.2MHz */
+};
+
+enum {
+        MAX8649_RAMP_32MV = 0,
+        MAX8649_RAMP_16MV,
+        MAX8649_RAMP_8MV,
+        MAX8649_RAMP_4MV,
+        MAX8649_RAMP_2MV,
+        MAX8649_RAMP_1MV,
+        MAX8649_RAMP_0_5MV,
+        MAX8649_RAMP_0_25MV,
+};
+
+struct max8649_platform_data {
+        struct regulator_init_data *regulator;
+
+        unsigned        mode:2;         /* bit[1:0] = VID1,VID0 */
+        unsigned        extclk_freq:2;
+        unsigned        extclk:1;
+        unsigned        ramp_timing:3;
+        unsigned        ramp_down:1;
+};
+
+#endif  /* __LINUX_REGULATOR_MAX8649_H */