| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | RT5668B audio CODEC |
| 2 | |
| 3 | This device supports I2C only. |
| 4 | |
| 5 | Required properties: |
| 6 | |
| 7 | - compatible : "realtek,rt5668b" |
| 8 | |
| 9 | - reg : The I2C address of the device. |
| 10 | |
| 11 | Optional properties: |
| 12 | |
| 13 | - interrupts : The CODEC's interrupt output. |
| 14 | |
| 15 | - realtek,dmic1-data-pin |
| 16 | 0: dmic1 is not used |
| 17 | 1: using GPIO2 pin as dmic1 data pin |
| 18 | 2: using GPIO5 pin as dmic1 data pin |
| 19 | |
| 20 | - realtek,dmic1-clk-pin |
| 21 | 0: using GPIO1 pin as dmic1 clock pin |
| 22 | 1: using GPIO3 pin as dmic1 clock pin |
| 23 | |
| 24 | - realtek,jd-src |
| 25 | 0: No JD is used |
| 26 | 1: using JD1 as JD source |
| 27 | |
| 28 | - realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. |
| 29 | |
| 30 | Pins on the device (for linking into audio routes) for RT5668B: |
| 31 | |
| 32 | * DMIC L1 |
| 33 | * DMIC R1 |
| 34 | * IN1P |
| 35 | * HPOL |
| 36 | * HPOR |
| 37 | |
| 38 | Example: |
| 39 | |
| 40 | rt5668 { |
| 41 | compatible = "realtek,rt5668b"; |
| 42 | reg = <0x1a>; |
| 43 | interrupt-parent = <&gpio>; |
| 44 | interrupts = <TEGRA_GPIO(U, 6) IRQ_TYPE_LEVEL_HIGH>; |
| 45 | realtek,ldo1-en-gpios = |
| 46 | <&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_HIGH>; |
| 47 | realtek,dmic1-data-pin = <1>; |
| 48 | realtek,dmic1-clk-pin = <1>; |
| 49 | realtek,jd-src = <1>; |
| 50 | }; |