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