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On newer Qualcomm platforms, like X1E80100-CRD, the WSA884x speakers share SD_N GPIOs between two speakers, thus a coordinated assertion is needed. Linux supports handling shared GPIO lines through "reset-gpios" property, thus allow specifying either powerdown or reset GPIOs (these are the same). Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Sean Anderson <sean.anderson@seco.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://msgid.link/r/20240129115216.96479-6-krzysztof.kozlowski@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
76 lines
1.6 KiB
YAML
76 lines
1.6 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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$id: http://devicetree.org/schemas/sound/qcom,wsa8840.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm WSA8840/WSA8845/WSA8845H smart speaker amplifier
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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description:
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WSA884X is a family of Qualcomm Aqstic smart speaker amplifiers using
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SoundWire digital audio interface.
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allOf:
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- $ref: dai-common.yaml#
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properties:
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compatible:
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const: sdw20217020400
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reg:
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maxItems: 1
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powerdown-gpios:
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description: Powerdown/Shutdown line to use (pin SD_N)
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maxItems: 1
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reset-gpios:
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description: Powerdown/Shutdown line to use (pin SD_N)
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maxItems: 1
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'#sound-dai-cells':
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const: 0
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vdd-1p8-supply: true
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vdd-io-supply: true
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required:
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- compatible
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- reg
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- '#sound-dai-cells'
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- vdd-1p8-supply
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- vdd-io-supply
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oneOf:
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- required:
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- powerdown-gpios
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- required:
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- reset-gpios
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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soundwire {
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#address-cells = <2>;
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#size-cells = <0>;
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speaker@0,1 {
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compatible = "sdw20217020400";
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reg = <0 1>;
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pinctrl-names = "default";
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pinctrl-0 = <&spkr_2_sd_n_active>;
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powerdown-gpios = <&lpass_tlmm 18 GPIO_ACTIVE_LOW>;
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#sound-dai-cells = <0>;
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sound-name-prefix = "SpkrRight";
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vdd-1p8-supply = <&vreg_l15b_1p8>;
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vdd-io-supply = <&vreg_l3g_1p2>;
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};
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};
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