| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/sound/qcom,lpass-cpu.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Qualcomm Technologies Inc. LPASS CPU dai driver bindings |
| |
| maintainers: |
| - Srinivas Kandagatla <srinivas.kandagatla@linaro.org> |
| - Rohit kumar <rohitkr@codeaurora.org> |
| |
| description: | |
| Qualcomm Technologies Inc. SOC Low-Power Audio SubSystem (LPASS) that consist |
| of MI2S interface for audio data transfer on external codecs. LPASS cpu driver |
| is a module to configure Low-Power Audio Interface(LPAIF) core registers |
| across different IP versions. |
| |
| properties: |
| compatible: |
| enum: |
| - qcom,lpass-cpu |
| - qcom,apq8016-lpass-cpu |
| - qcom,sc7180-lpass-cpu |
| |
| reg: |
| maxItems: 2 |
| description: LPAIF core registers |
| |
| reg-names: |
| maxItems: 2 |
| |
| clocks: |
| minItems: 3 |
| maxItems: 6 |
| |
| clock-names: |
| minItems: 3 |
| maxItems: 6 |
| |
| interrupts: |
| maxItems: 2 |
| description: LPAIF DMA buffer interrupt |
| |
| interrupt-names: |
| maxItems: 2 |
| |
| qcom,adsp: |
| $ref: /schemas/types.yaml#/definitions/phandle |
| description: Phandle for the audio DSP node |
| |
| iommus: |
| maxItems: 2 |
| description: Phandle to apps_smmu node with sid mask |
| |
| power-domains: |
| maxItems: 1 |
| |
| '#sound-dai-cells': |
| const: 1 |
| |
| '#address-cells': |
| const: 1 |
| |
| '#size-cells': |
| const: 0 |
| |
| patternProperties: |
| "^dai-link@[0-9a-f]$": |
| type: object |
| description: | |
| LPASS CPU dai node for each I2S device. Bindings of each node |
| depends on the specific driver providing the functionality and |
| properties. |
| properties: |
| reg: |
| maxItems: 1 |
| description: Must be one of the DAI ID |
| |
| qcom,playback-sd-lines: |
| $ref: /schemas/types.yaml#/definitions/uint32-array |
| description: list of MI2S data lines for playback |
| |
| qcom,capture-sd-lines: |
| $ref: /schemas/types.yaml#/definitions/uint32-array |
| description: list of MI2S data lines for capture |
| |
| required: |
| - reg |
| |
| additionalProperties: false |
| |
| required: |
| - compatible |
| - reg |
| - reg-names |
| - clocks |
| - clock-names |
| - interrupts |
| - interrupt-names |
| - '#sound-dai-cells' |
| |
| additionalProperties: false |
| |
| allOf: |
| - if: |
| properties: |
| compatible: |
| contains: |
| const: qcom,lpass-cpu |
| |
| then: |
| properties: |
| clock-names: |
| items: |
| - const: ahbix-clk |
| - const: mi2s-osr-clk |
| - const: mi2s-bit-clk |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| const: qcom,apq8016-lpass-cpu |
| |
| then: |
| properties: |
| clock-names: |
| items: |
| - const: ahbix-clk |
| - const: mi2s-bit-clk0 |
| - const: mi2s-bit-clk1 |
| - const: mi2s-bit-clk2 |
| - const: mi2s-bit-clk3 |
| - const: pcnoc-mport-clk |
| - const: pcnoc-sway-clk |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| const: qcom,sc7180-lpass-cpu |
| |
| then: |
| properties: |
| clock-names: |
| oneOf: |
| - items: #for I2S |
| - const: pcnoc-sway-clk |
| - const: audio-core |
| - const: mclk0 |
| - const: pcnoc-mport-clk |
| - const: mi2s-bit-clk0 |
| - const: mi2s-bit-clk1 |
| - items: #for HDMI |
| - const: pcnoc-sway-clk |
| - const: audio-core |
| - const: pcnoc-mport-clk |
| reg-names: |
| anyOf: |
| - items: #for I2S |
| - const: lpass-lpaif |
| - items: #for I2S and HDMI |
| - const: lpass-hdmiif |
| - const: lpass-lpaif |
| interrupt-names: |
| anyOf: |
| - items: #for I2S |
| - const: lpass-irq-lpaif |
| - items: #for I2S and HDMI |
| - const: lpass-irq-lpaif |
| - const: lpass-irq-hdmi |
| required: |
| - iommus |
| - power-domains |
| |
| examples: |
| - | |
| #include <dt-bindings/sound/sc7180-lpass.h> |
| |
| soc { |
| #address-cells = <2>; |
| #size-cells = <2>; |
| lpass@62d80000 { |
| compatible = "qcom,sc7180-lpass-cpu"; |
| |
| reg = <0 0x62d87000 0 0x68000>, |
| <0 0x62f00000 0 0x29000>; |
| reg-names = "lpass-hdmiif", |
| "lpass-lpaif"; |
| iommus = <&apps_smmu 0x1020 0>, |
| <&apps_smmu 0x1032 0>; |
| power-domains = <&lpass_hm 0>; |
| |
| clocks = <&gcc 131>, |
| <&lpasscorecc 6>, |
| <&lpasscorecc 7>, |
| <&lpasscorecc 10>, |
| <&lpasscorecc 8>, |
| <&lpasscorecc 9>; |
| |
| clock-names = "pcnoc-sway-clk", "audio-core", |
| "mclk0", "pcnoc-mport-clk", |
| "mi2s-bit-clk0", "mi2s-bit-clk1"; |
| |
| interrupts = <0 160 1>, |
| <0 268 1>; |
| interrupt-names = "lpass-irq-lpaif", |
| "lpass-irq-hdmi"; |
| #sound-dai-cells = <1>; |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| /* Optional to set different MI2S SD lines */ |
| dai-link@0 { |
| reg = <MI2S_PRIMARY>; |
| qcom,playback-sd-lines = <1>; |
| qcom,capture-sd-lines = <0>; |
| }; |
| }; |
| }; |
| |
| ... |
