d232832c9c
Add bindings for the PMIC Glink ADC device. This device provides a mechanism for software to read multiple ADC channels of Qualcomm Technologies, Inc. PMICs using the Glink interface to communicate with charger firmware. Change-Id: I805b13893f80ce993496e35767a89b09ae163254 Signed-off-by: David Collins <quic_collinsd@quicinc.com>
91 lines
2.2 KiB
YAML
91 lines
2.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/qcom,glink-adc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Technologies, Inc. Glink PMIC ADC
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maintainers:
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- David Collins <quic_collinsd@quicinc.com>
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description: |
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This device provides a mechanism for software to read multiple ADC channels of
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Qualcomm Technologies, Inc. PMICs using the Glink interface to communicate
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with charger firmware. Channel value conversion is performed in firmware.
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Both converted and raw ADC values can be read. This device is useful in
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situations where a charger PMIC is connected via I2C and only accessible to
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charger firmware.
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properties:
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compatible:
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const: qcom,glink-adc
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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"#io-channel-cells":
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const: 1
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required:
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- compatible
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- "#address-cells"
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- "#size-cells"
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- "#io-channel-cells"
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additionalProperties: false
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patternProperties:
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"@[0-9a-f]+$":
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type: object
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description: ADC channel node
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properties:
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reg:
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maxItems: 1
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description: |
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ADC channel number of the form:
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(bus_id << 16) | (pmic_id << 8) | adc_channel
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where:
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bus_id = which SPMI or I2C bus the PMIC is attached to
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pmic_id = PMIC address on the bus
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adc_channel = specific channel within the PMIC
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label:
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$ref: /schemas/types.yaml#/definitions/string
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description: ADC channel name
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required:
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- reg
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additionalProperties: false
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examples:
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- |
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pmic_glink_log {
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glink-adc {
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compatible = "qcom,glink-adc";
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#address-cells = <1>;
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#size-cells = <0>;
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#io-channel-cells = <1>;
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smb1502_iin@1076801 {
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reg = <0x1076801>;
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label = "smb1502_iin";
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};
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smb1502_ichg@1076802 {
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reg = <0x1076802>;
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label = "smb1502_ichg";
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};
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smb1502_die_temp@1076803 {
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reg = <0x1076803>;
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label = "smb1502_die_temp";
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};
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};
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};
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