1Dialog Semiconductor DA7218 Audio Codec bindings 2 3DA7218 is an audio codec with HP detect feature. 4 5====== 6 7Required properties: 8- compatible : Should be "dlg,da7217" or "dlg,da7218" 9- reg: Specifies the I2C slave address 10 11- VDD-supply: VDD power supply for the device 12- VDDMIC-supply: VDDMIC power supply for the device 13- VDDIO-supply: VDDIO power supply for the device 14 (See Documentation/devicetree/bindings/regulator/regulator.txt for further 15 information relating to regulators) 16 17Optional properties: 18- interrupts: IRQ line info for DA7218 chip. 19 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for 20 further information relating to interrupt properties) 21- interrupt-names : Name associated with interrupt line. Should be "wakeup" if 22 interrupt is to be used to wake system, otherwise "irq" should be used. 23- wakeup-source: Flag to indicate this device can wake system (suspend/resume). 24 25- clocks : phandle and clock specifier for codec MCLK. 26- clock-names : Clock name string for 'clocks' attribute, should be "mclk". 27 28- dlg,micbias1-lvl-millivolt : Voltage (mV) for Mic Bias 1 29 [<1200>, <1600>, <1800>, <2000>, <2200>, <2400>, <2600>, <2800>, <3000>] 30- dlg,micbias2-lvl-millivolt : Voltage (mV) for Mic Bias 2 31 [<1200>, <1600>, <1800>, <2000>, <2200>, <2400>, <2600>, <2800>, <3000>] 32- dlg,mic1-amp-in-sel : Mic1 input source type 33 ["diff", "se_p", "se_n"] 34- dlg,mic2-amp-in-sel : Mic2 input source type 35 ["diff", "se_p", "se_n"] 36- dlg,dmic1-data-sel : DMIC1 channel select based on clock edge. 37 ["lrise_rfall", "lfall_rrise"] 38- dlg,dmic1-samplephase : When to sample audio from DMIC1. 39 ["on_clkedge", "between_clkedge"] 40- dlg,dmic1-clkrate-hz : DMic1 clock frequency (Hz). 41 [<1500000>, <3000000>] 42- dlg,dmic2-data-sel : DMic2 channel select based on clock edge. 43 ["lrise_rfall", "lfall_rrise"] 44- dlg,dmic2-samplephase : When to sample audio from DMic2. 45 ["on_clkedge", "between_clkedge"] 46- dlg,dmic2-clkrate-hz : DMic2 clock frequency (Hz). 47 [<1500000>, <3000000>] 48- dlg,hp-diff-single-supply : Boolean flag, use single supply for HP 49 (DA7217 only) 50 51====== 52 53Optional Child node - 'da7218_hpldet' (DA7218 only): 54 55Optional properties: 56- dlg,jack-rate-us : Time between jack detect measurements (us) 57 [<5>, <10>, <20>, <40>, <80>, <160>, <320>, <640>] 58- dlg,jack-debounce : Number of debounce measurements taken for jack detect 59 [<0>, <2>, <3>, <4>] 60- dlg,jack-threshold-pct : Threshold level for jack detection (% of VDD) 61 [<84>, <88>, <92>, <96>] 62- dlg,comp-inv : Boolean flag, invert comparator output 63- dlg,hyst : Boolean flag, enable hysteresis 64- dlg,discharge : Boolean flag, auto discharge of Mic Bias on jack removal 65 66====== 67 68Example: 69 70 codec: da7218@1a { 71 compatible = "dlg,da7218"; 72 reg = <0x1a>; 73 interrupt-parent = <&gpio6>; 74 interrupts = <11 IRQ_TYPE_LEVEL_LOW>; 75 wakeup-source; 76 77 VDD-supply = <®_audio>; 78 VDDMIC-supply = <®_audio>; 79 VDDIO-supply = <®_audio>; 80 81 clocks = <&clks 201>; 82 clock-names = "mclk"; 83 84 dlg,micbias1-lvl-millivolt = <2600>; 85 dlg,micbias2-lvl-millivolt = <2600>; 86 dlg,mic1-amp-in-sel = "diff"; 87 dlg,mic2-amp-in-sel = "diff"; 88 89 dlg,dmic1-data-sel = "lrise_rfall"; 90 dlg,dmic1-samplephase = "on_clkedge"; 91 dlg,dmic1-clkrate-hz = <3000000>; 92 dlg,dmic2-data-sel = "lrise_rfall"; 93 dlg,dmic2-samplephase = "on_clkedge"; 94 dlg,dmic2-clkrate-hz = <3000000>; 95 96 da7218_hpldet { 97 dlg,jack-rate-us = <40>; 98 dlg,jack-debounce = <2>; 99 dlg,jack-threshold-pct = <84>; 100 dlg,hyst; 101 }; 102 }; 103