Add bidings for pin controller in Low Power Audio SubSystem (LPASS). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- .../qcom,sm8550-lpass-lpi-pinctrl.yaml | 148 ++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sm8550-lpass-lpi-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8550-lpass-lpi-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sm8550-lpass-lpi-pinctrl.yaml new file mode 100644 index 000000000000..5e90051ed314 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm8550-lpass-lpi-pinctrl.yaml @@ -0,0 +1,148 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/qcom,sm8550-lpass-lpi-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SM8550 SoC LPASS LPI TLMM + +maintainers: + - Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> + - Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> + +description: + Top Level Mode Multiplexer pin controller in the Low Power Audio SubSystem + (LPASS) Low Power Island (LPI) of Qualcomm SM8550 SoC. + +properties: + compatible: + const: qcom,sm8550-lpass-lpi-pinctrl + + reg: + items: + - description: LPASS LPI TLMM Control and Status registers + - description: LPASS LPI pins SLEW 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-sm8550-lpass-state" + - patternProperties: + "-pins$": + $ref: "#/$defs/qcom-sm8550-lpass-state" + additionalProperties: false + +$defs: + qcom-sm8550-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: [ dmic1_clk, dmic1_data, dmic2_clk, dmic2_data, dmic3_clk, + dmic3_data, dmic4_clk, dmic4_data, ext_mclk1_a, ext_mclk1_b, + ext_mclk1_c, ext_mclk1_d, ext_mclk1_e, gpio, i2s0_clk, + i2s0_data, i2s0_ws, i2s1_clk, i2s1_data, i2s1_ws, i2s2_clk, + i2s2_data, i2s2_ws, i2s3_clk, i2s3_data, i2s3_ws, i2s4_clk, + i2s4_data, i2s4_ws, slimbus_clk, slimbus_data, swr_rx_clk, + swr_rx_data, swr_tx_clk, swr_tx_data, wsa_swr_clk, + wsa_swr_data, wsa2_swr_clk, wsa2_swr_data ] + 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-pull-down: true + bias-pull-up: true + bias-disable: 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,q6dsp-lpass-ports.h> + + lpass_tlmm: pinctrl@6e80000 { + compatible = "qcom,sm8550-lpass-lpi-pinctrl"; + reg = <0x06e80000 0x20000>, + <0x0725a000 0x10000>; + + clocks = <&q6prmcc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>, + <&q6prmcc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>; + clock-names = "core", "audio"; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&lpass_tlmm 0 0 23>; + + tx-swr-sleep-clk-state { + pins = "gpio0"; + function = "swr_tx_clk"; + drive-strength = <2>; + bias-pull-down; + }; + }; -- 2.34.1
