131 lines
3.2 KiB
YAML
131 lines
3.2 KiB
YAML
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# 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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$id: http://devicetree.org/schemas/pinctrl/qcom,lpass-lpi-pinctrl.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Technologies, Inc. Low Power Audio SubSystem (LPASS)
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Low Power Island (LPI) TLMM block
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maintainers:
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- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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description: |
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This binding describes the Top Level Mode Multiplexer block found in the
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LPASS LPI IP on most Qualcomm SoCs
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properties:
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compatible:
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const: qcom,sm8250-lpass-lpi-pinctrl
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reg:
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minItems: 2
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maxItems: 2
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clocks:
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items:
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- description: LPASS Core voting clock
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- description: LPASS Audio voting clock
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clock-names:
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items:
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- const: core
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- const: audio
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gpio-controller: true
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'#gpio-cells':
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description: Specifying the pin number and flags, as defined in
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include/dt-bindings/gpio/gpio.h
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const: 2
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gpio-ranges:
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maxItems: 1
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#PIN CONFIGURATION NODES
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patternProperties:
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'-pins$':
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type: object
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description:
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Pinctrl node's client devices use subnodes for desired pin configuration.
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Client device subnodes use below standard properties.
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$ref: "/schemas/pinctrl/pincfg-node.yaml"
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properties:
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pins:
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description:
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List of gpio pins affected by the properties specified in this
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subnode.
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items:
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oneOf:
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- pattern: "^gpio([0-9]|[1-9][0-9])$"
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minItems: 1
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maxItems: 14
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function:
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enum: [ gpio, swr_tx_clk, qua_mi2s_sclk, swr_tx_data, qua_mi2s_ws,
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qua_mi2s_data, swr_rx_clk, swr_rx_data, dmic1_clk, i2s1_clk,
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dmic1_data, i2s1_ws, dmic2_clk, dmic2_data, i2s1_data,
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i2s2_clk, wsa_swr_clk, i2s2_ws, wsa_swr_data, dmic3_clk,
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dmic3_data, i2s2_data ]
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description:
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Specify the alternative function to be configured for the specified
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pins.
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drive-strength:
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enum: [2, 4, 6, 8, 10, 12, 14, 16]
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default: 2
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description:
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Selects the drive strength for the specified pins, in mA.
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slew-rate:
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enum: [0, 1, 2, 3]
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default: 0
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description: |
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0: No adjustments
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1: Higher Slew rate (faster edges)
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2: Lower Slew rate (slower edges)
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3: Reserved (No adjustments)
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bias-pull-down: true
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bias-pull-up: true
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bias-disable: true
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output-high: true
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output-low: true
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required:
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- pins
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- function
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additionalProperties: false
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- gpio-controller
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- '#gpio-cells'
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- gpio-ranges
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/sound/qcom,q6afe.h>
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lpi_tlmm: pinctrl@33c0000 {
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compatible = "qcom,sm8250-lpass-lpi-pinctrl";
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reg = <0x33c0000 0x20000>,
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<0x3550000 0x10000>;
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clocks = <&q6afecc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
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<&q6afecc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
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clock-names = "core", "audio";
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gpio-controller;
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#gpio-cells = <2>;
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gpio-ranges = <&lpi_tlmm 0 0 14>;
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};
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