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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-09-08 21:38:59 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-07 14:24:14 +0400
commitc3035a232e87f42b81d8ece1980abd0a2f26d792 (patch)
tree9decb46e28290d8ba3044e56c985db90536dc667 /Documentation/power/regulator
parent2c1ba398ac9da3305815f6ae8e95ae2b9fd3b5ff (diff)
downloadlinux-c3035a232e87f42b81d8ece1980abd0a2f26d792.tar.xz
regulator: Clarify documentation for regulator-regulator supplies
The mechanism used for connecting regulators together when one regulator supplies another wasn't clear as the names being used weren't really tied together well. Reported-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'Documentation/power/regulator')
-rw-r--r--Documentation/power/regulator/machine.txt11
1 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/power/regulator/machine.txt b/Documentation/power/regulator/machine.txt
index 311c61f2feaa..ce63af0a8e35 100644
--- a/Documentation/power/regulator/machine.txt
+++ b/Documentation/power/regulator/machine.txt
@@ -43,6 +43,7 @@ to their supply regulator :-
static struct regulator_init_data regulator1_data = {
.constraints = {
+ .name = "Regulator-1",
.min_uV = 3300000,
.max_uV = 3300000,
.valid_modes_mask = REGULATOR_MODE_NORMAL,
@@ -51,13 +52,19 @@ static struct regulator_init_data regulator1_data = {
.consumer_supplies = regulator1_consumers,
};
+The name field should be set to something that is usefully descriptive
+for the board for configuration of supplies for other regulators and
+for use in logging and other diagnostic output. Normally the name
+used for the supply rail in the schematic is a good choice. If no
+name is provided then the subsystem will choose one.
+
Regulator-1 supplies power to Regulator-2. This relationship must be registered
with the core so that Regulator-1 is also enabled when Consumer A enables its
supply (Regulator-2). The supply regulator is set by the supply_regulator
-field below:-
+field below and co:-
static struct regulator_init_data regulator2_data = {
- .supply_regulator = "regulator_name",
+ .supply_regulator = "Regulator-1",
.constraints = {
.min_uV = 1800000,
.max_uV = 2000000,