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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 18:06:20 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 18:06:20 -0400
commitf3c3f0670501fee130f22193369249deea8cc630 (patch)
tree27ae58e4f338d571be93a7557ae7de48de10a947 /Documentation
parentc18ae42aa5b3473c00f51b6937d0c00bdb6ce2d2 (diff)
parent0151546fb34e92494acd65ed84a603c2a4a90168 (diff)
Merge branch 'for-linus' of git://opensource.wolfsonmicro.com/regulator
* 'for-linus' of git://opensource.wolfsonmicro.com/regulator: (22 commits) regulator: Constify constraints name regulator: Fix possible nullpointer dereference in regulator_enable() regulator: gpio-regulator add dependency on GENERIC_GPIO regulator: Add module.h include to gpio-regulator regulator: Add driver for gpio-controlled regulators regulator: remove duplicate REG_CTRL2 defines in tps65023 regulator: Clarify documentation for regulator-regulator supplies regulator: Fix some bitrot in the machine driver documentation regulator: tps65023: Added support for the similiar TPS65020 chip regulator: tps65023: Setting correct core regulator for tps65021 regulator: tps65023: Set missing bit for update core-voltage regulator: tps65023: Fixes i2c configuration issues regulator: Add debugfs file showing the supply map table regulator: tps6586x: add SMx slew rate setting regulator: tps65023: Fixes i2c configuration issues regulator: tps6507x: Remove num_voltages array regulator: max8952: removed unused mutex. regulator: fix regulator/consumer.h kernel-doc warning regulator: Ensure enough enable time for max8649 regulator: 88pm8607: Fix off-by-one value range checking in the case of no id is matched ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/power/regulator/machine.txt19
1 files changed, 13 insertions, 6 deletions
diff --git a/Documentation/power/regulator/machine.txt b/Documentation/power/regulator/machine.txt
index b42419b52e44..ce63af0a8e35 100644
--- a/Documentation/power/regulator/machine.txt
+++ b/Documentation/power/regulator/machine.txt
@@ -16,7 +16,7 @@ initialisation code by creating a struct regulator_consumer_supply for
16each regulator. 16each regulator.
17 17
18struct regulator_consumer_supply { 18struct regulator_consumer_supply {
19 struct device *dev; /* consumer */ 19 const char *dev_name; /* consumer dev_name() */
20 const char *supply; /* consumer supply - e.g. "vcc" */ 20 const char *supply; /* consumer supply - e.g. "vcc" */
21}; 21};
22 22
@@ -24,13 +24,13 @@ e.g. for the machine above
24 24
25static struct regulator_consumer_supply regulator1_consumers[] = { 25static struct regulator_consumer_supply regulator1_consumers[] = {
26{ 26{
27 .dev = &platform_consumerB_device.dev, 27 .dev_name = "dev_name(consumer B)",
28 .supply = "Vcc", 28 .supply = "Vcc",
29},}; 29},};
30 30
31static struct regulator_consumer_supply regulator2_consumers[] = { 31static struct regulator_consumer_supply regulator2_consumers[] = {
32{ 32{
33 .dev = &platform_consumerA_device.dev, 33 .dev = "dev_name(consumer A"),
34 .supply = "Vcc", 34 .supply = "Vcc",
35},}; 35},};
36 36
@@ -43,6 +43,7 @@ to their supply regulator :-
43 43
44static struct regulator_init_data regulator1_data = { 44static struct regulator_init_data regulator1_data = {
45 .constraints = { 45 .constraints = {
46 .name = "Regulator-1",
46 .min_uV = 3300000, 47 .min_uV = 3300000,
47 .max_uV = 3300000, 48 .max_uV = 3300000,
48 .valid_modes_mask = REGULATOR_MODE_NORMAL, 49 .valid_modes_mask = REGULATOR_MODE_NORMAL,
@@ -51,13 +52,19 @@ static struct regulator_init_data regulator1_data = {
51 .consumer_supplies = regulator1_consumers, 52 .consumer_supplies = regulator1_consumers,
52}; 53};
53 54
55The name field should be set to something that is usefully descriptive
56for the board for configuration of supplies for other regulators and
57for use in logging and other diagnostic output. Normally the name
58used for the supply rail in the schematic is a good choice. If no
59name is provided then the subsystem will choose one.
60
54Regulator-1 supplies power to Regulator-2. This relationship must be registered 61Regulator-1 supplies power to Regulator-2. This relationship must be registered
55with the core so that Regulator-1 is also enabled when Consumer A enables its 62with the core so that Regulator-1 is also enabled when Consumer A enables its
56supply (Regulator-2). The supply regulator is set by the supply_regulator 63supply (Regulator-2). The supply regulator is set by the supply_regulator
57field below:- 64field below and co:-
58 65
59static struct regulator_init_data regulator2_data = { 66static struct regulator_init_data regulator2_data = {
60 .supply_regulator = "regulator_name", 67 .supply_regulator = "Regulator-1",
61 .constraints = { 68 .constraints = {
62 .min_uV = 1800000, 69 .min_uV = 1800000,
63 .max_uV = 2000000, 70 .max_uV = 2000000,