projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f9f6a592 AP |
1 | RT5677 audio CODEC |
| 2 | ||
| 3 | This device supports I2C only. | |
| 4 | ||
| 5 | Required properties: | |
| 6 | ||
| 7 | - compatible : "realtek,rt5677". | |
| 8 | ||
| 9 | - reg : The I2C address of the device. | |
| 10 | ||
| 11 | - interrupts : The CODEC's interrupt output. | |
| 12 | ||
| 0e612ff1 AP |
13 | - gpio-controller : Indicates this device is a GPIO controller. |
| 14 | ||
| 15 | - #gpio-cells : Should be two. The first cell is the pin number and the | |
| 16 | second cell is used to specify optional parameters (currently unused). | |
| 17 | ||
| f9f6a592 AP |
18 | Optional properties: |
| 19 | ||
| 20 | - realtek,pow-ldo2-gpio : The GPIO that controls the CODEC's POW_LDO2 pin. | |
| 21 | ||
| 6f67c380 AP |
22 | - realtek,in1-differential |
| 23 | - realtek,in2-differential | |
| 24 | - realtek,lout1-differential | |
| 25 | - realtek,lout2-differential | |
| 26 | - realtek,lout3-differential | |
| 27 | Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential, | |
| 28 | rather than single-ended. | |
| 29 | ||
| 40eb90a1 AP |
30 | - realtek,gpio-config |
| 31 | Array of six 8bit elements that configures GPIO. | |
| 32 | 0 - floating (reset value) | |
| 33 | 1 - pull down | |
| 34 | 2 - pull up | |
| 35 | ||
| 5e3363ad OC |
36 | - realtek,jd1-gpio |
| 37 | Configures GPIO Mic Jack detection 1. | |
| 38 | Select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively. | |
| 39 | ||
| 40 | - realtek,jd2-gpio | |
| 41 | - realtek,jd3-gpio | |
| 42 | Configures GPIO Mic Jack detection 2 and 3. | |
| 43 | Select 0 ~ 3 as OFF, GPIO4, GPIO5 and GPIO6 respectively. | |
| 44 | ||
| f9f6a592 AP |
45 | Pins on the device (for linking into audio routes): |
| 46 | ||
| 47 | * IN1P | |
| 48 | * IN1N | |
| 49 | * IN2P | |
| 50 | * IN2N | |
| 51 | * MICBIAS1 | |
| 52 | * DMIC1 | |
| 53 | * DMIC2 | |
| 54 | * DMIC3 | |
| 55 | * DMIC4 | |
| 56 | * LOUT1 | |
| 57 | * LOUT2 | |
| 58 | * LOUT3 | |
| 59 | ||
| 60 | Example: | |
| 61 | ||
| 62 | rt5677 { | |
| 63 | compatible = "realtek,rt5677"; | |
| 64 | reg = <0x2c>; | |
| 65 | interrupt-parent = <&gpio>; | |
| 66 | interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>; | |
| 0e612ff1 AP |
67 | |
| 68 | gpio-controller; | |
| 69 | #gpio-cells = <2>; | |
| 70 | ||
| f9f6a592 AP |
71 | realtek,pow-ldo2-gpio = |
| 72 | <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; | |
| 6f67c380 | 73 | realtek,in1-differential = "true"; |
| 40eb90a1 | 74 | realtek,gpio-config = /bits/ 8 <0 0 0 0 0 2>; /* pull up GPIO6 */ |
| 5e3363ad | 75 | realtek,jd2-gpio = <3>; /* Enables Jack detection for GPIO6 */ |
| f9f6a592 | 76 | }; |