Based on kernel version 6.7. Page generated on 2024-01-11 08:51 EST.
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Mediatek AFE PCM controller for mt2701
Required properties:
- compatible: should be one of the following.
- "mediatek,mt2701-audio"
- "mediatek,mt7622-audio"
- interrupts: should contain AFE and ASYS interrupts
- interrupt-names: should be "afe" and "asys"
- power-domains: should define the power domain
- clocks: Must contain an entry for each entry in clock-names
See ../clocks/clock-bindings.txt for details
- clock-names: should have these clock names:
"infra_sys_audio_clk",
"top_audio_mux1_sel",
"top_audio_mux2_sel",
"top_audio_a1sys_hp",
"top_audio_a2sys_hp",
"i2s0_src_sel",
"i2s1_src_sel",
"i2s2_src_sel",
"i2s3_src_sel",
"i2s0_src_div",
"i2s1_src_div",
"i2s2_src_div",
"i2s3_src_div",
"i2s0_mclk_en",
"i2s1_mclk_en",
"i2s2_mclk_en",
"i2s3_mclk_en",
"i2so0_hop_ck",
"i2so1_hop_ck",
"i2so2_hop_ck",
"i2so3_hop_ck",
"i2si0_hop_ck",
"i2si1_hop_ck",
"i2si2_hop_ck",
"i2si3_hop_ck",
"asrc0_out_ck",
"asrc1_out_ck",
"asrc2_out_ck",
"asrc3_out_ck",
"audio_afe_pd",
"audio_afe_conn_pd",
"audio_a1sys_pd",
"audio_a2sys_pd",
"audio_mrgif_pd";
- assigned-clocks: list of input clocks and dividers for the audio system.
See ../clocks/clock-bindings.txt for details.
- assigned-clocks-parents: parent of input clocks of assigned clocks.
- assigned-clock-rates: list of clock frequencies of assigned clocks.
Must be a subnode of MediaTek audsys device tree node.
See ../arm/mediatek/mediatek,audsys.txt for details about the parent node.
Example:
audsys: audio-subsystem@11220000 {
compatible = "mediatek,mt2701-audsys", "syscon";
...
afe: audio-controller {
compatible = "mediatek,mt2701-audio";
interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
interrupt-names = "afe", "asys";
power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
clocks = <&infracfg CLK_INFRA_AUDIO>,
<&topckgen CLK_TOP_AUD_MUX1_SEL>,
<&topckgen CLK_TOP_AUD_MUX2_SEL>,
<&topckgen CLK_TOP_AUD_48K_TIMING>,
<&topckgen CLK_TOP_AUD_44K_TIMING>,
<&topckgen CLK_TOP_AUD_K1_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K2_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K3_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K4_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K1_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K2_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K3_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K4_SRC_DIV>,
<&topckgen CLK_TOP_AUD_I2S1_MCLK>,
<&topckgen CLK_TOP_AUD_I2S2_MCLK>,
<&topckgen CLK_TOP_AUD_I2S3_MCLK>,
<&topckgen CLK_TOP_AUD_I2S4_MCLK>,
<&audsys CLK_AUD_I2SO1>,
<&audsys CLK_AUD_I2SO2>,
<&audsys CLK_AUD_I2SO3>,
<&audsys CLK_AUD_I2SO4>,
<&audsys CLK_AUD_I2SIN1>,
<&audsys CLK_AUD_I2SIN2>,
<&audsys CLK_AUD_I2SIN3>,
<&audsys CLK_AUD_I2SIN4>,
<&audsys CLK_AUD_ASRCO1>,
<&audsys CLK_AUD_ASRCO2>,
<&audsys CLK_AUD_ASRCO3>,
<&audsys CLK_AUD_ASRCO4>,
<&audsys CLK_AUD_AFE>,
<&audsys CLK_AUD_AFE_CONN>,
<&audsys CLK_AUD_A1SYS>,
<&audsys CLK_AUD_A2SYS>,
<&audsys CLK_AUD_AFE_MRGIF>;
clock-names = "infra_sys_audio_clk",
"top_audio_mux1_sel",
"top_audio_mux2_sel",
"top_audio_a1sys_hp",
"top_audio_a2sys_hp",
"i2s0_src_sel",
"i2s1_src_sel",
"i2s2_src_sel",
"i2s3_src_sel",
"i2s0_src_div",
"i2s1_src_div",
"i2s2_src_div",
"i2s3_src_div",
"i2s0_mclk_en",
"i2s1_mclk_en",
"i2s2_mclk_en",
"i2s3_mclk_en",
"i2so0_hop_ck",
"i2so1_hop_ck",
"i2so2_hop_ck",
"i2so3_hop_ck",
"i2si0_hop_ck",
"i2si1_hop_ck",
"i2si2_hop_ck",
"i2si3_hop_ck",
"asrc0_out_ck",
"asrc1_out_ck",
"asrc2_out_ck",
"asrc3_out_ck",
"audio_afe_pd",
"audio_afe_conn_pd",
"audio_a1sys_pd",
"audio_a2sys_pd",
"audio_mrgif_pd";
assigned-clocks = <&topckgen CLK_TOP_AUD_MUX1_SEL>,
<&topckgen CLK_TOP_AUD_MUX2_SEL>,
<&topckgen CLK_TOP_AUD_MUX1_DIV>,
<&topckgen CLK_TOP_AUD_MUX2_DIV>;
assigned-clock-parents = <&topckgen CLK_TOP_AUD1PLL_98M>,
<&topckgen CLK_TOP_AUD2PLL_90M>;
assigned-clock-rates = <0>, <0>, <49152000>, <45158400>;
};
};
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