# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id:
http://devicetree.org/schemas/mfd/sprd,sc2731.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Spreadtrum SC27xx PMIC
maintainers:
- Orson Zhai <orsonzhai@gmail.com>
- Baolin Wang <baolin.wang7@gmail.com>
- Chunyan Zhang <zhang.lyra@gmail.com>
description: |
Spreadtrum PMICs belonging to the SC27xx series integrate all mobile handset
power management, audio codec, battery management and user interface support
functions in a single chip. They have 6 major functional blocks:
- DCDCs to support CPU, memory
- LDOs to support both internal and external requirements
- Battery management system, such as charger, fuel gauge
- Audio codec
- User interface functions, such as indicator, flash LED and so on
- IC level interface, such as power on/off control, RTC, typec and so on
properties:
$nodename:
pattern: '^pmic@[0-9a-f]+$'
compatible:
enum:
- sprd,sc2720
- sprd,sc2721
- sprd,sc2723
- sprd,sc2730
- sprd,sc2731
reg:
maxItems: 1
interrupts:
maxItems: 1
interrupt-controller: true
spi-max-frequency: true
'#address-cells':
const: 1
'#interrupt-cells':
const: 1
'#size-cells':
const: 0
regulators:
type: object
$ref: /schemas/regulator/sprd,sc2731-regulator.yaml#
patternProperties:
"^adc@[0-9a-f]+$":
type: object
$ref: /schemas/iio/adc/sprd,sc2720-adc.yaml#
"^charger@[0-9a-f]+$":
type: object
$ref: /schemas/power/supply/sc2731-charger.yaml#
"^efuse@[0-9a-f]+$":
type: object
$ref: /schemas/nvmem/sprd,sc2731-efuse.yaml#
"^fuel-gauge@[0-9a-f]+$":
type: object
$ref: /schemas/power/supply/sc27xx-fg.yaml#
"^gpio@[0-9a-f]+$":
type: object
$ref: /schemas/gpio/sprd,gpio-eic.yaml#
"^led-controller@[0-9a-f]+$":
type: object
$ref: /schemas/leds/sprd,sc2731-bltc.yaml#
"^rtc@[0-9a-f]+$":
type: object
$ref: /schemas/rtc/sprd,sc2731-rtc.yaml#
"^vibrator@[0-9a-f]+$":
type: object
$ref: /schemas/input/sprd,sc27xx-vibrator.yaml#
required:
- compatible
- reg
- interrupts
- interrupt-controller
- spi-max-frequency
- '#address-cells'
- '#interrupt-cells'
- '#size-cells'
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/leds/common.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
sc2731_pmic: pmic@0 {
compatible = "sprd,sc2731";
reg = <0>;
interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
spi-max-frequency = <26000000>;
#address-cells = <1>;
#interrupt-cells = <1>;
#size-cells = <0>;
charger@0 {
compatible = "sprd,sc2731-charger";
reg = <0x0>;
phys = <&ssphy>;
monitored-battery = <&bat>;
};
led-controller@200 {
compatible = "sprd,sc2731-bltc";
reg = <0x200>;
#address-cells = <1>;
#size-cells = <0>;
led@0 {
reg = <0x0>;
color = <LED_COLOR_ID_RED>;
};
led@1 {
reg = <0x1>;
color = <LED_COLOR_ID_GREEN>;
};
led@2 {
reg = <0x2>;
color = <LED_COLOR_ID_BLUE>;
};
};
rtc@280 {
compatible = "sprd,sc2731-rtc";
reg = <0x280>;
interrupt-parent = <&sc2731_pmic>;
interrupts = <2>;
};
pmic_eic: gpio@300 {
compatible = "sprd,sc2731-eic";
reg = <0x300>;
interrupt-parent = <&sc2731_pmic>;
interrupts = <5>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
};
efuse@380 {
compatible = "sprd,sc2731-efuse";
reg = <0x380>;
hwlocks = <&hwlock 12>;
#address-cells = <1>;
#size-cells = <1>;
/* Data cells */
fgu_calib: calib@6 {
reg = <0x6 0x2>;
bits = <0 9>;
};
adc_big_scale: calib@24 {
reg = <0x24 0x2>;
};
adc_small_scale: calib@26 {
reg = <0x26 0x2>;
};
};
pmic_adc: adc@480 {
compatible = "sprd,sc2731-adc";
reg = <0x480>;
interrupt-parent = <&sc2731_pmic>;
interrupts = <0>;
#io-channel-cells = <1>;
hwlocks = <&hwlock 4>;
nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
nvmem-cell-names = "big_scale_calib", "small_scale_calib";
};
fuel-gauge@a00 {
compatible = "sprd,sc2731-fgu";
reg = <0xa00>;
battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
interrupt-parent = <&sc2731_pmic>;
interrupts = <4>;
io-channels = <&pmic_adc 5>, <&pmic_adc 14>;
io-channel-names = "bat-temp", "charge-vol";
nvmem-cells = <&fgu_calib>;
nvmem-cell-names = "fgu_calib";
monitored-battery = <&bat>;
sprd,calib-resistance-micro-ohms = <21500>;
};
vibrator@ec8 {
compatible = "sprd,sc2731-vibrator";
reg = <0xec8>;
};
regulators {
compatible = "sprd,sc2731-regulator";
BUCK_CPU0 {
regulator-name = "vddarm0";
regulator-min-microvolt = <400000>;
regulator-max-microvolt = <1996875>;
regulator-ramp-delay = <25000>;
regulator-always-on;
};
LDO_CAMA0 {
regulator-name = "vddcama0";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3750000>;
regulator-enable-ramp-delay = <100>;
};
};
};
};
...
