mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 14:21:47 +00:00
462ae14190
The X-Powers AXP813 is a PMIC designed to be paired with Allwinner's A83T SoC. There is also an AXP818, which is paired with the H8 SoC. The two models seem to be identical, apart from the external markings. This patch introduces the basic mfd and regulator bindings for the AXP813. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
260 lines
9.3 KiB
Plaintext
260 lines
9.3 KiB
Plaintext
AXP family PMIC device tree bindings
|
|
|
|
The axp20x family current members :
|
|
axp152 (X-Powers)
|
|
axp202 (X-Powers)
|
|
axp209 (X-Powers)
|
|
axp221 (X-Powers)
|
|
axp223 (X-Powers)
|
|
axp803 (X-Powers)
|
|
axp806 (X-Powers)
|
|
axp809 (X-Powers)
|
|
axp813 (X-Powers)
|
|
|
|
The AXP813 is 2 chips packaged into 1. The 2 chips do not share anything
|
|
other than the packaging. Pins are routed separately. As such they should
|
|
be treated as separate entities. The other half is an AC100 RTC/codec
|
|
combo chip. Please see ./ac100.txt for its bindings.
|
|
|
|
Required properties:
|
|
- compatible: should be one of:
|
|
* "x-powers,axp152"
|
|
* "x-powers,axp202"
|
|
* "x-powers,axp209"
|
|
* "x-powers,axp221"
|
|
* "x-powers,axp223"
|
|
* "x-powers,axp803"
|
|
* "x-powers,axp806"
|
|
* "x-powers,axp809"
|
|
* "x-powers,axp813"
|
|
- reg: The I2C slave address or RSB hardware address for the AXP chip
|
|
- interrupt-parent: The parent interrupt controller
|
|
- interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin
|
|
- interrupt-controller: The PMIC has its own internal IRQs
|
|
- #interrupt-cells: Should be set to 1
|
|
|
|
Optional properties:
|
|
- x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz
|
|
AXP152/20X: range: 750-1875, Default: 1.5 MHz
|
|
AXP22X/8XX: range: 1800-4050, Default: 3 MHz
|
|
|
|
- x-powers,drive-vbus-en: boolean, set this when the N_VBUSEN pin is
|
|
used as an output pin to control an external
|
|
regulator to drive the OTG VBus, rather then
|
|
as an input pin which signals whether the
|
|
board is driving OTG VBus or not.
|
|
(axp221 / axp223 / axp813 only)
|
|
|
|
- x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is
|
|
wired for master mode. The default is slave mode.
|
|
|
|
- <input>-supply: a phandle to the regulator supply node. May be omitted if
|
|
inputs are unregulated, such as using the IPSOUT output
|
|
from the PMIC.
|
|
|
|
- regulators: A node that houses a sub-node for each regulator. Regulators
|
|
not used but preferred to be managed by the OS should be
|
|
listed as well.
|
|
See Documentation/devicetree/bindings/regulator/regulator.txt
|
|
for more information on standard regulator bindings.
|
|
|
|
Optional properties for DCDC regulators:
|
|
- x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO (PWM/PFM) mode
|
|
Default: Current hardware setting
|
|
The DCDC regulators work in a mixed PWM/PFM mode,
|
|
using PFM under light loads and switching to PWM
|
|
for heavier loads. Forcing PWM mode trades efficiency
|
|
under light loads for lower output noise. This
|
|
probably makes sense for HiFi audio related
|
|
applications that aren't battery constrained.
|
|
|
|
AXP202/AXP209 regulators, type, and corresponding input supply names:
|
|
|
|
Regulator Type Supply Name Notes
|
|
--------- ---- ----------- -----
|
|
DCDC2 : DC-DC buck : vin2-supply
|
|
DCDC3 : DC-DC buck : vin3-supply
|
|
LDO1 : LDO : acin-supply : always on
|
|
LDO2 : LDO : ldo24in-supply : shared supply
|
|
LDO3 : LDO : ldo3in-supply
|
|
LDO4 : LDO : ldo24in-supply : shared supply
|
|
LDO5 : LDO : ldo5in-supply
|
|
|
|
AXP221/AXP223 regulators, type, and corresponding input supply names:
|
|
|
|
Regulator Type Supply Name Notes
|
|
--------- ---- ----------- -----
|
|
DCDC1 : DC-DC buck : vin1-supply
|
|
DCDC2 : DC-DC buck : vin2-supply
|
|
DCDC3 : DC-DC buck : vin3-supply
|
|
DCDC4 : DC-DC buck : vin4-supply
|
|
DCDC5 : DC-DC buck : vin5-supply
|
|
DC1SW : On/Off Switch : : DCDC1 secondary output
|
|
DC5LDO : LDO : : input from DCDC5
|
|
ALDO1 : LDO : aldoin-supply : shared supply
|
|
ALDO2 : LDO : aldoin-supply : shared supply
|
|
ALDO3 : LDO : aldoin-supply : shared supply
|
|
DLDO1 : LDO : dldoin-supply : shared supply
|
|
DLDO2 : LDO : dldoin-supply : shared supply
|
|
DLDO3 : LDO : dldoin-supply : shared supply
|
|
DLDO4 : LDO : dldoin-supply : shared supply
|
|
ELDO1 : LDO : eldoin-supply : shared supply
|
|
ELDO2 : LDO : eldoin-supply : shared supply
|
|
ELDO3 : LDO : eldoin-supply : shared supply
|
|
LDO_IO0 : LDO : ips-supply : GPIO 0
|
|
LDO_IO1 : LDO : ips-supply : GPIO 1
|
|
RTC_LDO : LDO : ips-supply : always on
|
|
DRIVEVBUS : Enable output : drivevbus-supply : external regulator
|
|
|
|
AXP803 regulators, type, and corresponding input supply names:
|
|
|
|
Regulator Type Supply Name Notes
|
|
--------- ---- ----------- -----
|
|
DCDC1 : DC-DC buck : vin1-supply
|
|
DCDC2 : DC-DC buck : vin2-supply : poly-phase capable
|
|
DCDC3 : DC-DC buck : vin3-supply : poly-phase capable
|
|
DCDC4 : DC-DC buck : vin4-supply
|
|
DCDC5 : DC-DC buck : vin5-supply : poly-phase capable
|
|
DCDC6 : DC-DC buck : vin6-supply : poly-phase capable
|
|
DC1SW : On/Off Switch : : DCDC1 secondary output
|
|
ALDO1 : LDO : aldoin-supply : shared supply
|
|
ALDO2 : LDO : aldoin-supply : shared supply
|
|
ALDO3 : LDO : aldoin-supply : shared supply
|
|
DLDO1 : LDO : dldoin-supply : shared supply
|
|
DLDO2 : LDO : dldoin-supply : shared supply
|
|
DLDO3 : LDO : dldoin-supply : shared supply
|
|
DLDO4 : LDO : dldoin-supply : shared supply
|
|
ELDO1 : LDO : eldoin-supply : shared supply
|
|
ELDO2 : LDO : eldoin-supply : shared supply
|
|
ELDO3 : LDO : eldoin-supply : shared supply
|
|
FLDO1 : LDO : fldoin-supply : shared supply
|
|
FLDO2 : LDO : fldoin-supply : shared supply
|
|
LDO_IO0 : LDO : ips-supply : GPIO 0
|
|
LDO_IO1 : LDO : ips-supply : GPIO 1
|
|
RTC_LDO : LDO : ips-supply : always on
|
|
|
|
AXP806 regulators, type, and corresponding input supply names:
|
|
|
|
Regulator Type Supply Name Notes
|
|
--------- ---- ----------- -----
|
|
DCDCA : DC-DC buck : vina-supply : poly-phase capable
|
|
DCDCB : DC-DC buck : vinb-supply : poly-phase capable
|
|
DCDCC : DC-DC buck : vinc-supply : poly-phase capable
|
|
DCDCD : DC-DC buck : vind-supply : poly-phase capable
|
|
DCDCE : DC-DC buck : vine-supply : poly-phase capable
|
|
ALDO1 : LDO : aldoin-supply : shared supply
|
|
ALDO2 : LDO : aldoin-supply : shared supply
|
|
ALDO3 : LDO : aldoin-supply : shared supply
|
|
BLDO1 : LDO : bldoin-supply : shared supply
|
|
BLDO2 : LDO : bldoin-supply : shared supply
|
|
BLDO3 : LDO : bldoin-supply : shared supply
|
|
BLDO4 : LDO : bldoin-supply : shared supply
|
|
CLDO1 : LDO : cldoin-supply : shared supply
|
|
CLDO2 : LDO : cldoin-supply : shared supply
|
|
CLDO3 : LDO : cldoin-supply : shared supply
|
|
SW : On/Off Switch : swin-supply
|
|
|
|
Additionally, the AXP806 DC-DC regulators support poly-phase arrangements
|
|
for higher output current. The possible groupings are: A+B, A+B+C, D+E.
|
|
|
|
AXP809 regulators, type, and corresponding input supply names:
|
|
|
|
Regulator Type Supply Name Notes
|
|
--------- ---- ----------- -----
|
|
DCDC1 : DC-DC buck : vin1-supply
|
|
DCDC2 : DC-DC buck : vin2-supply
|
|
DCDC3 : DC-DC buck : vin3-supply
|
|
DCDC4 : DC-DC buck : vin4-supply
|
|
DCDC5 : DC-DC buck : vin5-supply
|
|
DC1SW : On/Off Switch : : DCDC1 secondary output
|
|
DC5LDO : LDO : : input from DCDC5
|
|
ALDO1 : LDO : aldoin-supply : shared supply
|
|
ALDO2 : LDO : aldoin-supply : shared supply
|
|
ALDO3 : LDO : aldoin-supply : shared supply
|
|
DLDO1 : LDO : dldoin-supply : shared supply
|
|
DLDO2 : LDO : dldoin-supply : shared supply
|
|
ELDO1 : LDO : eldoin-supply : shared supply
|
|
ELDO2 : LDO : eldoin-supply : shared supply
|
|
ELDO3 : LDO : eldoin-supply : shared supply
|
|
LDO_IO0 : LDO : ips-supply : GPIO 0
|
|
LDO_IO1 : LDO : ips-supply : GPIO 1
|
|
RTC_LDO : LDO : ips-supply : always on
|
|
SW : On/Off Switch : swin-supply
|
|
|
|
AXP813 regulators, type, and corresponding input supply names:
|
|
|
|
Regulator Type Supply Name Notes
|
|
--------- ---- ----------- -----
|
|
DCDC1 : DC-DC buck : vin1-supply
|
|
DCDC2 : DC-DC buck : vin2-supply : poly-phase capable
|
|
DCDC3 : DC-DC buck : vin3-supply : poly-phase capable
|
|
DCDC4 : DC-DC buck : vin4-supply
|
|
DCDC5 : DC-DC buck : vin5-supply : poly-phase capable
|
|
DCDC6 : DC-DC buck : vin6-supply : poly-phase capable
|
|
DCDC7 : DC-DC buck : vin7-supply
|
|
ALDO1 : LDO : aldoin-supply : shared supply
|
|
ALDO2 : LDO : aldoin-supply : shared supply
|
|
ALDO3 : LDO : aldoin-supply : shared supply
|
|
DLDO1 : LDO : dldoin-supply : shared supply
|
|
DLDO2 : LDO : dldoin-supply : shared supply
|
|
DLDO3 : LDO : dldoin-supply : shared supply
|
|
DLDO4 : LDO : dldoin-supply : shared supply
|
|
ELDO1 : LDO : eldoin-supply : shared supply
|
|
ELDO2 : LDO : eldoin-supply : shared supply
|
|
ELDO3 : LDO : eldoin-supply : shared supply
|
|
FLDO1 : LDO : fldoin-supply : shared supply
|
|
FLDO2 : LDO : fldoin-supply : shared supply
|
|
FLDO3 : LDO : fldoin-supply : shared supply
|
|
LDO_IO0 : LDO : ips-supply : GPIO 0
|
|
LDO_IO1 : LDO : ips-supply : GPIO 1
|
|
RTC_LDO : LDO : ips-supply : always on
|
|
SW : On/Off Switch : swin-supply
|
|
DRIVEVBUS : Enable output : drivevbus-supply : external regulator
|
|
|
|
Example:
|
|
|
|
axp209: pmic@34 {
|
|
compatible = "x-powers,axp209";
|
|
reg = <0x34>;
|
|
interrupt-parent = <&nmi_intc>;
|
|
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
|
|
interrupt-controller;
|
|
#interrupt-cells = <1>;
|
|
|
|
regulators {
|
|
x-powers,dcdc-freq = <1500>;
|
|
|
|
vdd_cpu: dcdc2 {
|
|
regulator-always-on;
|
|
regulator-min-microvolt = <1000000>;
|
|
regulator-max-microvolt = <1450000>;
|
|
regulator-name = "vdd-cpu";
|
|
};
|
|
|
|
vdd_int_dll: dcdc3 {
|
|
regulator-always-on;
|
|
regulator-min-microvolt = <1000000>;
|
|
regulator-max-microvolt = <1400000>;
|
|
regulator-name = "vdd-int-dll";
|
|
};
|
|
|
|
vdd_rtc: ldo1 {
|
|
regulator-always-on;
|
|
regulator-min-microvolt = <1200000>;
|
|
regulator-max-microvolt = <1400000>;
|
|
regulator-name = "vdd-rtc";
|
|
};
|
|
|
|
avcc: ldo2 {
|
|
regulator-always-on;
|
|
regulator-min-microvolt = <2700000>;
|
|
regulator-max-microvolt = <3300000>;
|
|
regulator-name = "avcc";
|
|
};
|
|
|
|
ldo3 {
|
|
/* unused but preferred to be managed by OS */
|
|
};
|
|
};
|
|
};
|