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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-12 14:55:17 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-12 14:55:17 +0900
commitc6d65bf246fbba6e9042a35aba050d2a92f39505 (patch)
tree896fbb104de505b413c3ef43707514fd886f4f78 /Documentation
parent4fc9ed3344758f22b57db174914b60423c7c1593 (diff)
parentd4d5cef649d1042454c286474343cec50ff1cb60 (diff)
Merge tag 'regulator-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown: "Lots of driver updates here plus some nice new core features, the main one being the first: - Enable support for providing a dummy regulator when we know that one must exist for the device to be functional. This makes it much easier to add regulator support to drivers since we don't require that the machine integration for all systems using the device be updated to provide regulators. - Substantial reduction in the amount of busy waiting done while waiting for enables to complete. - Allow MFDs to distribute regulator supplies to child devices so we don't have to expose the internal structure of MFDs outside of the driver. - Managed registeration for regulators" * tag 'regulator-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (113 commits) regulator: s5m8767: Modify parsing method of the voltage table of buck2/3/4 regulator: s5m8767: Modify parse_dt function to parse data related to ramp regulator: da9052: Revert se apply_[reg|bit] with regmap based voltage_sel operations mfd: arizona: Specify supply mappings for Arizona CODECs mfd: Allow mapping regulator supplies to MFD device from children regulator: core: Add ability to create a lookup alias for supply regulator: tps65910: Fix checkpatch issue regulator: tps65023: Fix checkpatch issue regulator: tps6105x: Fix checkpatch issue regulator: mc13783: Fix checkpatch issue regulator: max8997: Fix checkpatch issue regulator: lp3971: Fix checkpatch issue regulator: fixed: Fix checkpatch issue regulator: anatop: Fix checkpatch issue regulator: Add REGULATOR_LINEAR_RANGE macro regulator: Remove max_uV from struct regulator_linear_range regulator: ti-abb: Fix operator precedence typo regulator: tps65910: get regulators node from parent node only regulator: tps6586x: get regulators node from parent node only regulator: tps65090: get regulators node from parent node only ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/regulator/as3722-regulator.txt91
-rw-r--r--Documentation/devicetree/bindings/regulator/da9210.txt21
-rw-r--r--Documentation/devicetree/bindings/regulator/palmas-pmic.txt12
-rw-r--r--Documentation/devicetree/bindings/regulator/regulator.txt5
-rw-r--r--Documentation/driver-model/devres.txt1
5 files changed, 127 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/regulator/as3722-regulator.txt b/Documentation/devicetree/bindings/regulator/as3722-regulator.txt
new file mode 100644
index 00000000000..caad0c8a258
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/as3722-regulator.txt
@@ -0,0 +1,91 @@
+Regulator of AMS AS3722 PMIC.
+Name of the regulator subnode must be "regulators".
+
+Optional properties:
+--------------------
+The input supply of regulators are the optional properties on the
+regulator node. The AS3722 is having 7 DCDC step-down regulators as
+sd[0-6], 10 LDOs as ldo[0-7], ldo[9-11]. The input supply of these
+regulators are provided through following properties:
+vsup-sd2-supply: Input supply for SD2.
+vsup-sd3-supply: Input supply for SD3.
+vsup-sd4-supply: Input supply for SD4.
+vsup-sd5-supply: Input supply for SD5.
+vin-ldo0-supply: Input supply for LDO0.
+vin-ldo1-6-supply: Input supply for LDO1 and LDO6.
+vin-ldo2-5-7-supply: Input supply for LDO2, LDO5 and LDO7.
+vin-ldo3-4-supply: Input supply for LDO3 and LDO4.
+vin-ldo9-10-supply: Input supply for LDO9 and LDO10.
+vin-ldo11-supply: Input supply for LDO11.
+
+Optional nodes:
+--------------
+- regulators : Must contain a sub-node per regulator from the list below.
+ Each sub-node should contain the constraints and initialization
+ information for that regulator. See regulator.txt for a
+ description of standard properties for these sub-nodes.
+ Additional custom properties are listed below.
+ sd[0-6], ldo[0-7], ldo[9-11].
+
+ Optional sub-node properties:
+ ----------------------------
+ ams,ext-control: External control of the rail. The option of
+ this properties will tell which external input is
+ controlling this rail. Valid values are 0, 1, 2 ad 3.
+ 0: There is no external control of this rail.
+ 1: Rail is controlled by ENABLE1 input pin.
+ 2: Rail is controlled by ENABLE2 input pin.
+ 3: Rail is controlled by ENABLE3 input pin.
+ ams,enable-tracking: Enable tracking with SD1, only supported
+ by LDO3.
+
+Example:
+-------
+ ams3722: ams3722 {
+ compatible = "ams,as3722";
+ reg = <0x40>;
+ ...
+
+ regulators {
+ vsup-sd2-supply = <...>;
+ ...
+
+ sd0 {
+ regulator-name = "vdd_cpu";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-always-on;
+ ams,ext-control = <2>;
+ };
+
+ sd1 {
+ regulator-name = "vdd_core";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-always-on;
+ ams,ext-control = <1>;
+ };
+
+ sd2 {
+ regulator-name = "vddio_ddr";
+ regulator-min-microvolt = <1350000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-always-on;
+ };
+
+ sd4 {
+ regulator-name = "avdd-hdmi-pex";
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
+ regulator-always-on;
+ };
+
+ sd5 {
+ regulator-name = "vdd-1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+ ....
+ };
+ };
diff --git a/Documentation/devicetree/bindings/regulator/da9210.txt b/Documentation/devicetree/bindings/regulator/da9210.txt
new file mode 100644
index 00000000000..f120f229d67
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/da9210.txt
@@ -0,0 +1,21 @@
+* Dialog Semiconductor DA9210 Voltage Regulator
+
+Required properties:
+
+- compatible: must be "diasemi,da9210"
+- reg: the i2c slave address of the regulator. It should be 0x68.
+
+Any standard regulator properties can be used to configure the single da9210
+DCDC.
+
+Example:
+
+ da9210@68 {
+ compatible = "diasemi,da9210";
+ reg = <0x68>;
+
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
diff --git a/Documentation/devicetree/bindings/regulator/palmas-pmic.txt b/Documentation/devicetree/bindings/regulator/palmas-pmic.txt
index 875639ae060..42e6b6bc48f 100644
--- a/Documentation/devicetree/bindings/regulator/palmas-pmic.txt
+++ b/Documentation/devicetree/bindings/regulator/palmas-pmic.txt
@@ -26,11 +26,17 @@ Optional nodes:
For ti,palmas-pmic - smps12, smps123, smps3 depending on OTP,
smps45, smps457, smps7 depending on variant, smps6, smps[8-9],
- smps10_out2, smps10_out1, do[1-9], ldoln, ldousb.
+ smps10_out2, smps10_out1, ldo[1-9], ldoln, ldousb.
Optional sub-node properties:
ti,warm-reset - maintain voltage during warm reset(boolean)
- ti,roof-floor - control voltage selection by pin(boolean)
+ ti,roof-floor - This takes as optional argument on platform supporting
+ the rail from desired external control. If there is no argument then
+ it will be assume that it is controlled by NSLEEP pin.
+ The valid value for external pins are:
+ ENABLE1 then 1,
+ ENABLE2 then 2 or
+ NSLEEP then 3.
ti,mode-sleep - mode to adopt in pmic sleep 0 - off, 1 - auto,
2 - eco, 3 - forced pwm
ti,smps-range - OTP has the wrong range set for the hardware so override
@@ -61,7 +67,7 @@ pmic {
regulator-always-on;
regulator-boot-on;
ti,warm-reset;
- ti,roof-floor;
+ ti,roof-floor = <1>; /* ENABLE1 control */
ti,mode-sleep = <0>;
ti,smps-range = <1>;
};
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index 2bd8f097876..e2c7f1e7251 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -14,6 +14,11 @@ Optional properties:
- regulator-ramp-delay: ramp delay for regulator(in uV/uS)
For hardwares which support disabling ramp rate, it should be explicitly
intialised to zero (regulator-ramp-delay = <0>) for disabling ramp delay.
+- regulator-enable-ramp-delay: The time taken, in microseconds, for the supply
+ rail to reach the target voltage, plus/minus whatever tolerance the board
+ design requires. This property describes the total system ramp time
+ required due to the combination of internal ramping of the regulator itself,
+ and board design issues such as trace capacitance and load on the supply.
Deprecated properties:
- regulator-compatible: If a regulator chip contains multiple
diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index fcb34a5697e..3d9c2a76623 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -283,6 +283,7 @@ REGULATOR
devm_regulator_get()
devm_regulator_put()
devm_regulator_bulk_get()
+ devm_regulator_register()
CLOCK
devm_clk_get()