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009b21f392
Rename mbox according to actions instead of 'mbox0' and 'mbox1'. The 8195 dsp node, which uses this binding, has not yet been added to the 8195 devicetree. Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220622062245.21021-2-tinghan.shen@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
105 lines
2.7 KiB
YAML
105 lines
2.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/dsp/mediatek,mt8195-dsp.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Mediatek mt8195 DSP core
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maintainers:
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- YC Hung <yc.hung@mediatek.com>
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description: |
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Some boards from mt8195 contain a DSP core used for
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advanced pre- and post- audio processing.
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properties:
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compatible:
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const: mediatek,mt8195-dsp
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reg:
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items:
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- description: Address and size of the DSP Cfg registers
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- description: Address and size of the DSP SRAM
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reg-names:
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items:
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- const: cfg
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- const: sram
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clocks:
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items:
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- description: mux for audio dsp clock
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- description: 26M clock
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- description: mux for audio dsp local bus
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- description: default audio dsp local bus clock source
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- description: clock gate for audio dsp clock
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- description: mux for audio dsp access external bus
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clock-names:
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items:
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- const: adsp_sel
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- const: clk26m_ck
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- const: audio_local_bus
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- const: mainpll_d7_d2
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- const: scp_adsp_audiodsp
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- const: audio_h
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power-domains:
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maxItems: 1
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mboxes:
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items:
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- description: mailbox for receiving audio DSP requests.
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- description: mailbox for transmitting requests to audio DSP.
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mbox-names:
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items:
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- const: rx
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- const: tx
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memory-region:
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items:
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- description: dma buffer between host and DSP.
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- description: DSP system memory.
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required:
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- compatible
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- reg
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- reg-names
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- clocks
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- clock-names
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- memory-region
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- power-domains
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- mbox-names
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- mboxes
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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dsp@10803000 {
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compatible = "mediatek,mt8195-dsp";
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reg = <0x10803000 0x1000>,
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<0x10840000 0x40000>;
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reg-names = "cfg", "sram";
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clocks = <&topckgen 10>, //CLK_TOP_ADSP
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<&clk26m>,
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<&topckgen 107>, //CLK_TOP_AUDIO_LOCAL_BUS
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<&topckgen 136>, //CLK_TOP_MAINPLL_D7_D2
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<&scp_adsp 0>, //CLK_SCP_ADSP_AUDIODSP
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<&topckgen 34>; //CLK_TOP_AUDIO_H
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clock-names = "adsp_sel",
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"clk26m_ck",
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"audio_local_bus",
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"mainpll_d7_d2",
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"scp_adsp_audiodsp",
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"audio_h";
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memory-region = <&adsp_dma_mem_reserved>,
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<&adsp_mem_reserved>;
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power-domains = <&spm 6>; //MT8195_POWER_DOMAIN_ADSP
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mbox-names = "rx", "tx";
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mboxes = <&adsp_mailbox0>, <&adsp_mailbox1>;
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};
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