Add the bindings for the bq25790. Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@xxxxxx> Signed-off-by: Dan Murphy <dmurphy@xxxxxx> --- v2 - Changed ti,watchdog property, documented the interrupts, fixed exxamples for input-current and input-voltage .../bindings/power/supply/bq25790.yaml | 95 +++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/bq25790.yaml diff --git a/Documentation/devicetree/bindings/power/supply/bq25790.yaml b/Documentation/devicetree/bindings/power/supply/bq25790.yaml new file mode 100644 index 000000000000..6d9178ce5a2b --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/bq25790.yaml @@ -0,0 +1,95 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/power/supply/bq25790.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: TI BQ25790 Switch Mode Buck-Boost Charger + +maintainers: + - Dan Murphy <dmurphy@xxxxxx> + +description: | + BQ25790 is a highly integrated switch-mode buck-boost charger for 1-4 cell + Li-ion batteries and Li-polymer batteries. The device charges a battery from a + wide range of input sources including legacy USB adapters to high voltage USB + PD adapters and traditional barrel adapters. + +allOf: + - $ref: power-supply.yaml# + +properties: + compatible: + enum: + - ti,bq25790 + - ti,bq25792 + + reg: + maxItems: 1 + + ti,watchdog-timeout-ms: + default: 0 + description: | + Watchdog timer in milli seconds. 0 (default) disables the watchdog. + minimum: 0 + maximum: 160000 + enum: [ 0, 500, 1000, 2000, 20000, 40000, 80000, 160000] + + input-voltage-limit-microvolt: + description: | + Minimum input voltage limit in micro volts with a 100000 micro volt step. + minimum: 3600000 + maximum: 22000000 + + input-current-limit-microamp: + description: | + Maximum input current limit in micro amps with a 100000 micro amp step. + minimum: 100000 + maximum: 3300000 + + monitored-battery: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to the battery node being monitored + + interrupts: + maxItems: 1 + description: | + Interrupt sends an active low, 256 μs pulse to host to report the charger + device status and faults. + +required: + - compatible + - reg + - monitored-battery + +unevaluatedProperties: false + +examples: + - | + bat: battery { + compatible = "simple-battery"; + constant-charge-current-max-microamp = <2000000>; + constant-charge-voltage-max-microvolt = <4200000>; + precharge-current-microamp = <160000>; + charge-term-current-microamp = <160000>; + }; + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + bq25790: charger@6b { + compatible = "ti,bq25790"; + reg = <0x6b>; + interrupt-parent = <&gpio1>; + interrupts = <16 IRQ_TYPE_EDGE_FALLING>; + ti,watchdog-timeout-ms = <2000>; + input-current-limit-microamp = <3000000>; + input-voltage-limit-microvolt = <4500000>; + monitored-battery = <&bat>; + }; + }; + +... -- 2.28.0
