---

yaml
---
r: 220539
b: refs/heads/master
c: 688fe99
h: refs/heads/master
i:
  220537: 11f0dbe
  220535: 2e1465c
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 993af7c048f414121bc81e0d6e69456e3862a06b
+refs/heads/master: 688fe99a439f7c9dfcc52fbf7cb347f140a2dc8b

trunk/drivers/regulator/Makefile

@@ -3,14 +3,13 @@
 #
 
 
-obj-$(CONFIG_REGULATOR) += core.o
+obj-$(CONFIG_REGULATOR) += core.o dummy.o
 obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
 obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
 obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
 
 obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o
 obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
-obj-$(CONFIG_REGULATOR_DUMMY) += dummy.o
 obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
 obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o
 obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o

trunk/drivers/regulator/core.c

@@ -33,6 +33,7 @@ static DEFINE_MUTEX(regulator_list_mutex);
 static LIST_HEAD(regulator_list);
 static LIST_HEAD(regulator_map_list);
 static int has_full_constraints;
+static bool board_wants_dummy_regulator;
 
 /*
  * struct regulator_map
@@ -1108,6 +1109,11 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
 		}
 	}
 
+	if (board_wants_dummy_regulator) {
+		rdev = dummy_regulator_rdev;
+		goto found;
+	}
+
 #ifdef CONFIG_REGULATOR_DUMMY
 	if (!devname)
 		devname = "deviceless";
@@ -2462,6 +2468,22 @@ void regulator_has_full_constraints(void)
 }
 EXPORT_SYMBOL_GPL(regulator_has_full_constraints);
 
+/**
+ * regulator_use_dummy_regulator - Provide a dummy regulator when none is found
+ *
+ * Calling this function will cause the regulator API to provide a
+ * dummy regulator to consumers if no physical regulator is found,
+ * allowing most consumers to proceed as though a regulator were
+ * configured.  This allows systems such as those with software
+ * controllable regulators for the CPU core only to be brought up more
+ * readily.
+ */
+void regulator_use_dummy_regulator(void)
+{
+	board_wants_dummy_regulator = true;
+}
+EXPORT_SYMBOL_GPL(regulator_use_dummy_regulator);
+
 /**
  * rdev_get_drvdata - get rdev regulator driver data
  * @rdev: regulator

trunk/include/linux/regulator/machine.h

@@ -189,10 +189,15 @@ int regulator_suspend_prepare(suspend_state_t state);
 
 #ifdef CONFIG_REGULATOR
 void regulator_has_full_constraints(void);
+void regulator_use_dummy_regulator(void);
 #else
 static inline void regulator_has_full_constraints(void)
 {
 }
+
+static inline void regulator_use_dummy_regulator(void)
+{
+}
 #endif
 
 #endif