linuxmsm/laptops-kernel
0
0
Fork 0
mirror of https://github.com/linux-msm/laptops-kernel.git synced 2026-08-13 14:19:53 -07:00
Code Issues Packages Projects Releases Wiki Activity

regulator: as3722: add regulator driver for AMS AS3722

Browse Source 
The AMS AS3722 is a compact system PMU suitable for mobile phones,
tablets etc. It has 4 DCDC step down regulators, 3 DCDC step down
controller, 11 LDOs.

Add a driver to support accessing the DCDC/LDOs found on the AMS
AS3722 PMIC using regulators.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Florian Lobmaier <florian.lobmaier@ams.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Laxman Dewangan
2013-09-20 18:08:00 +01:00
committed by Mark Brown
parent 272b98c645
commit bc407334e9
4 changed files with 1017 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/devicetree/bindings/regulator/as3722-regulator.txt
+91
View File
@@ -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;
};
....
};
};
drivers/regulator/Kconfig
+8
View File
@@ -133,6 +133,14 @@ config REGULATOR_AS3711
This driver provides support for the voltage regulators on the
AS3711 PMIC
config REGULATOR_AS3722
tristate "AMS AS3722 PMIC Regulators"
depends on MFD_AS3722
help
This driver provides support for the voltage regulators on the
AS3722 PMIC. This will enable support for all the software
controllable DCDC/LDO regulators.
config REGULATOR_DA903X
tristate "Dialog Semiconductor DA9030/DA9034 regulators"
depends on PMIC_DA903X
drivers/regulator/Makefile
+1
View File
@@ -18,6 +18,7 @@ obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o
obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o
obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o arizona-ldo1.o
obj-$(CONFIG_REGULATOR_AS3711) += as3711-regulator.o
obj-$(CONFIG_REGULATOR_AS3722) += as3722-regulator.o
obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o
obj-$(CONFIG_REGULATOR_DA9055) += da9055-regulator.o
drivers/regulator/as3722-regulator.c
+917
View File
File diff suppressed because it is too large Load Diff