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Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml')
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diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml new file mode 100644 index 0000000000..1eefa9aa6a --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml @@ -0,0 +1,164 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SM8450 SoC LPASS LPI TLMM + +maintainers: + - Srinivas Kandagatla <srinivas.kandagatla@linaro.org> + +description: + Top Level Mode Multiplexer pin controller in the Low Power Audio SubSystem + (LPASS) Low Power Island (LPI) of Qualcomm SM8450 SoC. + +properties: + compatible: + const: qcom,sm8450-lpass-lpi-pinctrl + + reg: + items: + - description: LPASS LPI TLMM Control and Status registers + - description: LPASS LPI MCC registers + + clocks: + items: + - description: LPASS Core voting clock + - description: LPASS Audio voting clock + + clock-names: + items: + - const: core + - const: audio + + gpio-controller: true + + "#gpio-cells": + description: Specifying the pin number and flags, as defined in + include/dt-bindings/gpio/gpio.h + const: 2 + + gpio-ranges: + maxItems: 1 + +patternProperties: + "-state$": + oneOf: + - $ref: "#/$defs/qcom-sm8450-lpass-state" + - patternProperties: + "-pins$": + $ref: "#/$defs/qcom-sm8450-lpass-state" + additionalProperties: false + +$defs: + qcom-sm8450-lpass-state: + type: object + description: + Pinctrl node's client devices use subnodes for desired pin configuration. + Client device subnodes use below standard properties. + $ref: /schemas/pinctrl/pincfg-node.yaml + + properties: + pins: + description: + List of gpio pins affected by the properties specified in this + subnode. + items: + pattern: "^gpio([0-9]|1[0-9]|2[0-2])$" + + function: + enum: [ swr_tx_clk, swr_tx_data, swr_rx_clk, swr_rx_data, + dmic1_clk, dmic1_data, dmic2_clk, dmic2_data, dmic4_clk, + dmic4_data, i2s2_clk, i2s2_ws, dmic3_clk, dmic3_data, + qua_mi2s_sclk, qua_mi2s_ws, qua_mi2s_data, i2s1_clk, i2s1_ws, + i2s1_data, wsa_swr_clk, wsa_swr_data, wsa2_swr_clk, + wsa2_swr_data, i2s2_data, i2s4_ws, i2s4_clk, i2s4_data, + slimbus_clk, i2s3_clk, i2s3_ws, i2s3_data, slimbus_data, + ext_mclk1_c, ext_mclk1_b, ext_mclk1_a, ext_mclk1_d, + ext_mclk1_e ] + description: + Specify the alternative function to be configured for the specified + pins. + + drive-strength: + enum: [2, 4, 6, 8, 10, 12, 14, 16] + default: 2 + description: + Selects the drive strength for the specified pins, in mA. + + slew-rate: + enum: [0, 1, 2, 3] + default: 0 + description: | + 0: No adjustments + 1: Higher Slew rate (faster edges) + 2: Lower Slew rate (slower edges) + 3: Reserved (No adjustments) + + bias-bus-hold: true + bias-pull-down: true + bias-pull-up: true + bias-disable: true + input-enable: true + output-high: true + output-low: true + + required: + - pins + - function + + additionalProperties: false + +allOf: + - $ref: pinctrl.yaml# + +required: + - compatible + - reg + - clocks + - clock-names + - gpio-controller + - "#gpio-cells" + - gpio-ranges + +additionalProperties: false + +examples: + - | + #include <dt-bindings/sound/qcom,q6afe.h> + pinctrl@3440000 { + compatible = "qcom,sm8450-lpass-lpi-pinctrl"; + reg = <0x3440000 0x20000>, + <0x34d0000 0x10000>; + clocks = <&q6afecc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>, + <&q6afecc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>; + clock-names = "core", "audio"; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&lpi_tlmm 0 0 23>; + + wsa-swr-active-state { + clk-pins { + pins = "gpio10"; + function = "wsa_swr_clk"; + drive-strength = <2>; + slew-rate = <1>; + bias-disable; + }; + + data-pins { + pins = "gpio11"; + function = "wsa_swr_data"; + drive-strength = <2>; + slew-rate = <1>; + }; + }; + + tx-swr-sleep-clk-state { + pins = "gpio0"; + function = "swr_tx_clk"; + drive-strength = <2>; + bias-pull-down; + }; + }; |