| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | CS35L34 Speaker Amplifier |
| 2 | |
| 3 | Required properties: |
| 4 | |
| 5 | - compatible : "cirrus,cs35l34" |
| 6 | |
| 7 | - reg : the I2C address of the device for I2C. |
| 8 | |
| 9 | - VA-supply, VP-supply : power supplies for the device, |
| 10 | as covered in |
| 11 | Documentation/devicetree/bindings/regulator/regulator.txt. |
| 12 | |
| 13 | - cirrus,boost-vtge-millivolt : Boost Voltage Value. Configures the boost |
| 14 | converter's output voltage in mV. The range is from VP to 8V with |
| 15 | increments of 100mV. |
| 16 | |
| 17 | - cirrus,boost-nanohenry: Inductor value for boost converter. The value is |
| 18 | in nH and they can be values of 1000nH, 1100nH, 1200nH, 1500nH, and 2200nH. |
| 19 | |
| 20 | Optional properties: |
| 21 | |
| 22 | - reset-gpios: GPIO used to reset the amplifier. |
| 23 | |
| 24 | - interrupts : IRQ line info CS35L34. |
| 25 | (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt |
| 26 | for further information relating to interrupt properties) |
| 27 | |
| 28 | - cirrus,boost-peak-milliamp : Boost converter peak current limit in mA. The |
| 29 | range starts at 1200mA and goes to a maximum of 3840mA with increments of |
| 30 | 80mA. The default value is 2480mA. |
| 31 | |
| 32 | - cirrus,i2s-sdinloc : ADSP SDIN I2S channel location. Indicates whether the |
| 33 | received mono data is in the left or right portion of the I2S frame |
| 34 | according to the AD0 pin or directly via this configuration. |
| 35 | 0x0 (Default) = Selected by AD0 input (if AD0 = LOW, use left channel), |
| 36 | 0x2 = Left, |
| 37 | 0x1 = Selected by the inversion of the AD0 input (if AD0 = LOW, use right |
| 38 | channel), |
| 39 | 0x3 = Right. |
| 40 | |
| 41 | - cirrus,gain-zc-disable: Boolean property. If set, the gain change will take |
| 42 | effect without waiting for a zero cross. |
| 43 | |
| 44 | - cirrus,tdm-rising-edge: Boolean property. If set, data is on the rising edge of |
| 45 | SCLK. Otherwise, data is on the falling edge of SCLK. |
| 46 | |
| 47 | |
| 48 | Example: |
| 49 | |
| 50 | cs35l34: cs35l34@40 { |
| 51 | compatible = "cirrus,cs35l34"; |
| 52 | reg = <0x40>; |
| 53 | |
| 54 | interrupt-parent = <&gpio8>; |
| 55 | interrupts = <3 IRQ_TYPE_LEVEL_LOW>; |
| 56 | |
| 57 | reset-gpios = <&gpio 10 0>; |
| 58 | |
| 59 | cirrus,boost-vtge-milltvolt = <8000>; /* 8V */ |
| 60 | cirrus,boost-ind-nanohenry = <1000>; /* 1uH */ |
| 61 | cirrus,boost-peak-milliamp = <3000>; /* 3A */ |
| 62 | }; |