mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-19 10:14:23 +08:00
bd425113a1
This patch adds the basic and regulator bindings for the X-Powers AXP809 PMIC. Also update the DC-DC converter operating frequency for AXP22X/AXP80X. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
153 lines
4.9 KiB
Plaintext
153 lines
4.9 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)
|
|
axp809 (X-Powers)
|
|
|
|
Required properties:
|
|
- compatible: "x-powers,axp152", "x-powers,axp202", "x-powers,axp209",
|
|
"x-powers,axp221", "x-powers,axp223", "x-powers,axp809"
|
|
- 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/80X: range: 1800-4050, Default: 3 MHz
|
|
|
|
- <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
|
|
|
|
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
|
|
|
|
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 */
|
|
};
|
|
};
|
|
};
|