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Add LTC4162-F/S and LTC4015 to the supported devices of LTC4162-L. They share a common set of registers. The only differences lie in the resolution value of the scaling factor for battery voltage and battery current measurement, input voltage, and input current for different battery chemistries. The differences also include the calculation of setting and getting the actual voltage applied to the charge voltage, as well as getting the die temperature. This add compatible entries for ltc4162-f/s and ltc4015 and include datasheets for new devices. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com> Link: https://lore.kernel.org/r/20241213023746.34168-2-kimseer.paller@analog.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
74 lines
2.1 KiB
YAML
74 lines
2.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright (C) 2020 Topic Embedded Products
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/ltc4162-l.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Linear Technology (Analog Devices) LTC4162-L Charger
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maintainers:
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- Mike Looijmans <mike.looijmans@topic.nl>
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description: |
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The LTC ® 4162-L is an advanced monolithic synchronous step-down switching
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battery charger and PowerPath (TM) manager that seamlessly manages power
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distribution between input sources such as wall adapters, backplanes, solar
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panels, etc., and a rechargeable Lithium-Ion/Polymer battery.
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Specifications about the charger can be found at:
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https://www.analog.com/en/products/ltc4162-l.html
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https://www.analog.com/en/products/ltc4162-f.html
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https://www.analog.com/en/products/ltc4162-s.html
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https://www.analog.com/en/products/ltc4015.html
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properties:
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compatible:
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enum:
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- lltc,ltc4015
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- lltc,ltc4162-f
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- lltc,ltc4162-l
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- lltc,ltc4162-s
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reg:
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maxItems: 1
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description: I2C address of the charger.
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lltc,rsnsb-micro-ohms:
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description: Battery sense resistor in microohm.
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minimum: 1000
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lltc,rsnsi-micro-ohms:
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description: Input current sense resistor in microohm.
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minimum: 1000
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lltc,cell-count:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Number of battery cells. If not provided, will be obtained from the chip
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once the external power is applied. Omit this when the number of cells
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is somewhat dynamic. Without it, several measurements will return 0 until
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the charger is connected to an external supply.
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required:
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- compatible
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- reg
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- lltc,rsnsb-micro-ohms
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- lltc,rsnsi-micro-ohms
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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charger: battery-charger@68 {
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compatible = "lltc,ltc4162-l";
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reg = <0x68>;
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lltc,rsnsb-micro-ohms = <10000>;
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lltc,rsnsi-micro-ohms = <16000>;
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lltc,cell-count = <2>;
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};
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};
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