Based on kernel version 6.11
. Page generated on 2024-09-24 08:21 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | CS35L36 Speaker Amplifier Required properties: - compatible : "cirrus,cs35l36" - reg : the I2C address of the device for I2C - VA-supply, VP-supply : power supplies for the device, as covered in Documentation/devicetree/bindings/regulator/regulator.txt. - cirrus,boost-ctl-millivolt : Boost Voltage Value. Configures the boost converter's output voltage in mV. The range is from 2550mV to 12000mV with increments of 50mV. (Default) VP - cirrus,boost-peak-milliamp : Boost-converter peak current limit in mA. Configures the peak current by monitoring the current through the boost FET. Range starts at 1600mA and goes to a maximum of 4500mA with increments of 50mA. (Default) 4.50 Amps - cirrus,boost-ind-nanohenry : Inductor estimation LBST reference value. Seeds the digital boost converter's inductor estimation block with the initial inductance value to reference. 1000 = 1uH (Default) 1200 = 1.2uH Optional properties: - cirrus,multi-amp-mode : Boolean to determine if there are more than one amplifier in the system. If more than one it is best to Hi-Z the ASP port to prevent bus contention on the output signal - cirrus,boost-ctl-select : Boost converter control source selection. Selects the source of the BST_CTL target VBST voltage for the boost converter to generate. 0x00 - Control Port Value 0x01 - Class H Tracking (Default) 0x10 - MultiDevice Sync Value - cirrus,amp-pcm-inv : Boolean to determine Amplifier will invert incoming PCM data - cirrus,imon-pol-inv : Boolean to determine Amplifier will invert the polarity of outbound IMON feedback data - cirrus,vmon-pol-inv : Boolean to determine Amplifier will invert the polarity of outbound VMON feedback data - cirrus,dcm-mode-enable : Boost converter automatic DCM Mode enable. This enables the digital boost converter to operate in a low power (Discontinuous Conduction) mode during low loading conditions. - cirrus,weak-fet-disable : Boolean : The strength of the output drivers is reduced when operating in a Weak-FET Drive Mode and must not be used to drive a large load. - cirrus,classh-wk-fet-delay : Weak-FET entry delay. Controls the delay (in ms) before the Class H algorithm switches to the weak-FET voltage (after the audio falls and remains below the value specified in WKFET_AMP_THLD). 0 = 0ms 1 = 5ms 2 = 10ms 3 = 50ms 4 = 100ms (Default) 5 = 200ms 6 = 500ms 7 = 1000ms - cirrus,classh-weak-fet-thld-millivolt : Weak-FET amplifier drive threshold. Configures the signal threshold at which the PWM output stage enters weak-FET operation. The range is 50mV to 700mV in 50mV increments. - cirrus,temp-warn-threshold : Amplifier overtemperature warning threshold. Configures the threshold at which the overtemperature warning condition occurs. When the threshold is met, the overtemperature warning attenuation is applied and the TEMP_WARN_EINT interrupt status bit is set. If TEMP_WARN_MASK = 0, INTb is asserted. 0 = 105C 1 = 115C 2 = 125C (Default) 3 = 135C - cirrus,irq-drive-select : Selects the driver type of the selected interrupt output. 0 = Open-drain 1 = Push-pull (Default) - cirrus,irq-gpio-select : Selects the pin to serve as the programmable interrupt output. 0 = PDM_DATA / SWIRE_SD / INT (Default) 1 = GPIO Optional properties for the "cirrus,vpbr-config" Sub-node - cirrus,vpbr-en : VBST brownout prevention enable. Configures whether the VBST brownout prevention algorithm is enabled or disabled. 0 = VBST brownout prevention disabled (default) 1 = VBST brownout prevention enabled See Section 7.31.1 VPBR Config for configuration options & further details - cirrus,vpbr-thld : Initial VPBR threshold. Configures the VP brownout threshold voltage - cirrus,cirrus,vpbr-atk-rate : Attenuation attack step rate. Configures the amount delay between consecutive volume attenuation steps when a brownout condition is present and the VP brownout condition is in an attacking state. - cirrus,vpbr-atk-vol : VP brownout prevention step size. Configures the VP brownout prevention attacking attenuation step size when operating in either digital volume or analog gain modes. - cirrus,vpbr-max-attn : Maximum attenuation that the VP brownout prevention can apply to the audio signal. - cirrus,vpbr-wait : Configures the delay time between a brownout condition no longer being present and the VP brownout prevention entering an attenuation release state. - cirrus,vpbr-rel-rate : Attenuation release step rate. Configures the delay between consecutive volume attenuation release steps when a brownout condition is not longer present and the VP brownout is in an attenuation release state. - cirrus,vpbr-mute-en : During the attack state, if the vpbr-max-attn value is reached, the error condition still remains, and this bit is set, the audio is muted. Example: cs35l36: cs35l36@40 { compatible = "cirrus,cs35l36"; reg = <0x40>; VA-supply = <&dummy_vreg>; VP-supply = <&dummy_vreg>; reset-gpios = <&gpio0 54 0>; interrupt-parent = <&gpio8>; interrupts = <3 IRQ_TYPE_LEVEL_LOW>; cirrus,boost-ind-nanohenry = <1000>; cirrus,boost-ctl-millivolt = <10000>; cirrus,boost-peak-milliamp = <4500>; cirrus,boost-ctl-select = <0x00>; cirrus,weak-fet-delay = <0x04>; cirrus,weak-fet-thld = <0x01>; cirrus,temp-warn-threshold = <0x01>; cirrus,multi-amp-mode; cirrus,irq-drive-select = <0x01>; cirrus,irq-gpio-select = <0x01>; cirrus,vpbr-config { cirrus,vpbr-en = <0x00>; cirrus,vpbr-thld = <0x05>; cirrus,vpbr-atk-rate = <0x02>; cirrus,vpbr-atk-vol = <0x01>; cirrus,vpbr-max-attn = <0x09>; cirrus,vpbr-wait = <0x01>; cirrus,vpbr-rel-rate = <0x05>; cirrus,vpbr-mute-en = <0x00>; }; }; |