Documentation/devicetree/bindings/sound/mt2701-afe-pcm.txt

   1 Mediatek AFE PCM controller for mt2701
   2
   3 Required properties:
   4 - compatible = "mediatek,mt2701-audio";
   5 - interrupts: should contain AFE and ASYS interrupts
   6 - interrupt-names: should be "afe" and "asys"
   7 - power-domains: should define the power domain
   8 - clocks: Must contain an entry for each entry in clock-names
   9   See ../clocks/clock-bindings.txt for details
  10 - clock-names: should have these clock names:
  11                 "infra_sys_audio_clk",
  12                 "top_audio_mux1_sel",
  13                 "top_audio_mux2_sel",
  14                 "top_audio_a1sys_hp",
  15                 "top_audio_a2sys_hp",
  16                 "i2s0_src_sel",
  17                 "i2s1_src_sel",
  18                 "i2s2_src_sel",
  19                 "i2s3_src_sel",
  20                 "i2s0_src_div",
  21                 "i2s1_src_div",
  22                 "i2s2_src_div",
  23                 "i2s3_src_div",
  24                 "i2s0_mclk_en",
  25                 "i2s1_mclk_en",
  26                 "i2s2_mclk_en",
  27                 "i2s3_mclk_en",
  28                 "i2so0_hop_ck",
  29                 "i2so1_hop_ck",
  30                 "i2so2_hop_ck",
  31                 "i2so3_hop_ck",
  32                 "i2si0_hop_ck",
  33                 "i2si1_hop_ck",
  34                 "i2si2_hop_ck",
  35                 "i2si3_hop_ck",
  36                 "asrc0_out_ck",
  37                 "asrc1_out_ck",
  38                 "asrc2_out_ck",
  39                 "asrc3_out_ck",
  40                 "audio_afe_pd",
  41                 "audio_afe_conn_pd",
  42                 "audio_a1sys_pd",
  43                 "audio_a2sys_pd",
  44                 "audio_mrgif_pd";
  45 - assigned-clocks: list of input clocks and dividers for the audio system.
  46                    See ../clocks/clock-bindings.txt for details.
  47 - assigned-clocks-parents: parent of input clocks of assigned clocks.
  48 - assigned-clock-rates: list of clock frequencies of assigned clocks.
  49
  50 Must be a subnode of MediaTek audsys device tree node.
  51 See ../arm/mediatek/mediatek,audsys.txt for details about the parent node.
  52
  53 Example:
  54
  55         audsys: audio-subsystem@11220000 {
  56                 compatible = "mediatek,mt2701-audsys", "syscon", "simple-mfd";
  57                 ...
  58
  59                 afe: audio-controller {
  60                         compatible = "mediatek,mt2701-audio";
  61                         interrupts =  <GIC_SPI 104 IRQ_TYPE_LEVEL_LOW>,
  62                                       <GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
  63                         interrupt-names = "afe", "asys";
  64                         power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
  65
  66                         clocks = <&infracfg CLK_INFRA_AUDIO>,
  67                                  <&topckgen CLK_TOP_AUD_MUX1_SEL>,
  68                                  <&topckgen CLK_TOP_AUD_MUX2_SEL>,
  69                                  <&topckgen CLK_TOP_AUD_48K_TIMING>,
  70                                  <&topckgen CLK_TOP_AUD_44K_TIMING>,
  71                                  <&topckgen CLK_TOP_AUD_K1_SRC_SEL>,
  72                                  <&topckgen CLK_TOP_AUD_K2_SRC_SEL>,
  73                                  <&topckgen CLK_TOP_AUD_K3_SRC_SEL>,
  74                                  <&topckgen CLK_TOP_AUD_K4_SRC_SEL>,
  75                                  <&topckgen CLK_TOP_AUD_K1_SRC_DIV>,
  76                                  <&topckgen CLK_TOP_AUD_K2_SRC_DIV>,
  77                                  <&topckgen CLK_TOP_AUD_K3_SRC_DIV>,
  78                                  <&topckgen CLK_TOP_AUD_K4_SRC_DIV>,
  79                                  <&topckgen CLK_TOP_AUD_I2S1_MCLK>,
  80                                  <&topckgen CLK_TOP_AUD_I2S2_MCLK>,
  81                                  <&topckgen CLK_TOP_AUD_I2S3_MCLK>,
  82                                  <&topckgen CLK_TOP_AUD_I2S4_MCLK>,
  83                                  <&audsys CLK_AUD_I2SO1>,
  84                                  <&audsys CLK_AUD_I2SO2>,
  85                                  <&audsys CLK_AUD_I2SO3>,
  86                                  <&audsys CLK_AUD_I2SO4>,
  87                                  <&audsys CLK_AUD_I2SIN1>,
  88                                  <&audsys CLK_AUD_I2SIN2>,
  89                                  <&audsys CLK_AUD_I2SIN3>,
  90                                  <&audsys CLK_AUD_I2SIN4>,
  91                                  <&audsys CLK_AUD_ASRCO1>,
  92                                  <&audsys CLK_AUD_ASRCO2>,
  93                                  <&audsys CLK_AUD_ASRCO3>,
  94                                  <&audsys CLK_AUD_ASRCO4>,
  95                                  <&audsys CLK_AUD_AFE>,
  96                                  <&audsys CLK_AUD_AFE_CONN>,
  97                                  <&audsys CLK_AUD_A1SYS>,
  98                                  <&audsys CLK_AUD_A2SYS>,
  99                                  <&audsys CLK_AUD_AFE_MRGIF>;
 100
 101                         clock-names = "infra_sys_audio_clk",
 102                                       "top_audio_mux1_sel",
 103                                       "top_audio_mux2_sel",
 104                                       "top_audio_a1sys_hp",
 105                                       "top_audio_a2sys_hp",
 106                                       "i2s0_src_sel",
 107                                       "i2s1_src_sel",
 108                                       "i2s2_src_sel",
 109                                       "i2s3_src_sel",
 110                                       "i2s0_src_div",
 111                                       "i2s1_src_div",
 112                                       "i2s2_src_div",
 113                                       "i2s3_src_div",
 114                                       "i2s0_mclk_en",
 115                                       "i2s1_mclk_en",
 116                                       "i2s2_mclk_en",
 117                                       "i2s3_mclk_en",
 118                                       "i2so0_hop_ck",
 119                                       "i2so1_hop_ck",
 120                                       "i2so2_hop_ck",
 121                                       "i2so3_hop_ck",
 122                                       "i2si0_hop_ck",
 123                                       "i2si1_hop_ck",
 124                                       "i2si2_hop_ck",
 125                                       "i2si3_hop_ck",
 126                                       "asrc0_out_ck",
 127                                       "asrc1_out_ck",
 128                                       "asrc2_out_ck",
 129                                       "asrc3_out_ck",
 130                                       "audio_afe_pd",
 131                                       "audio_afe_conn_pd",
 132                                       "audio_a1sys_pd",
 133                                       "audio_a2sys_pd",
 134                                       "audio_mrgif_pd";
 135
 136                         assigned-clocks = <&topckgen CLK_TOP_AUD_MUX1_SEL>,
 137                                           <&topckgen CLK_TOP_AUD_MUX2_SEL>,
 138                                           <&topckgen CLK_TOP_AUD_MUX1_DIV>,
 139                                           <&topckgen CLK_TOP_AUD_MUX2_DIV>;
 140                         assigned-clock-parents = <&topckgen CLK_TOP_AUD1PLL_98M>,
 141                                                  <&topckgen CLK_TOP_AUD2PLL_90M>;
 142                         assigned-clock-rates = <0>, <0>, <49152000>, <45158400>;
 143                 };
 144         };