mirror of
https://github.com/torvalds/linux.git
synced 2024-11-19 18:41:48 +00:00
d8f64797c5
Many of the Tegra DT binding documents say nothing about the clocks or clock-names properties, yet those are present and required in DT files. This patch simply updates the documentation file to match the implicit definition of the binding, based on real-world DT content. All Tegra bindings that mention clocks are updated to have consistent wording and formatting of the clock-related properties. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
61 lines
2.0 KiB
Plaintext
61 lines
2.0 KiB
Plaintext
NVIDIA Tegra audio complex
|
|
|
|
Required properties:
|
|
- compatible : "nvidia,tegra-audio-wm8903"
|
|
- clocks : Must contain an entry for each entry in clock-names.
|
|
See ../clocks/clock-bindings.txt for details.
|
|
- clock-names : Must include the following entries:
|
|
- pll_a
|
|
- pll_a_out0
|
|
- mclk (The Tegra cdev1/extern1 clock, which feeds the CODEC's mclk)
|
|
- nvidia,model : The user-visible name of this sound complex.
|
|
- nvidia,audio-routing : A list of the connections between audio components.
|
|
Each entry is a pair of strings, the first being the connection's sink,
|
|
the second being the connection's source. Valid names for sources and
|
|
sinks are the WM8903's pins (documented in the WM8903 binding document),
|
|
and the jacks on the board:
|
|
|
|
* Headphone Jack
|
|
* Int Spk
|
|
* Mic Jack
|
|
|
|
- nvidia,i2s-controller : The phandle of the Tegra I2S1 controller
|
|
- nvidia,audio-codec : The phandle of the WM8903 audio codec
|
|
|
|
Optional properties:
|
|
- nvidia,spkr-en-gpios : The GPIO that enables the speakers
|
|
- nvidia,hp-mute-gpios : The GPIO that mutes the headphones
|
|
- nvidia,hp-det-gpios : The GPIO that detect headphones are plugged in
|
|
- nvidia,int-mic-en-gpios : The GPIO that enables the internal microphone
|
|
- nvidia,ext-mic-en-gpios : The GPIO that enables the external microphone
|
|
|
|
Example:
|
|
|
|
sound {
|
|
compatible = "nvidia,tegra-audio-wm8903-harmony",
|
|
"nvidia,tegra-audio-wm8903"
|
|
nvidia,model = "tegra-wm8903-harmony";
|
|
|
|
nvidia,audio-routing =
|
|
"Headphone Jack", "HPOUTR",
|
|
"Headphone Jack", "HPOUTL",
|
|
"Int Spk", "ROP",
|
|
"Int Spk", "RON",
|
|
"Int Spk", "LOP",
|
|
"Int Spk", "LON",
|
|
"Mic Jack", "MICBIAS",
|
|
"IN1L", "Mic Jack";
|
|
|
|
nvidia,i2s-controller = <&i2s1>;
|
|
nvidia,audio-codec = <&wm8903>;
|
|
|
|
nvidia,spkr-en-gpios = <&codec 2 0>;
|
|
nvidia,hp-det-gpios = <&gpio 178 0>; /* gpio PW2 */
|
|
nvidia,int-mic-en-gpios = <&gpio 184 0>; /*gpio PX0 */
|
|
nvidia,ext-mic-en-gpios = <&gpio 185 0>; /* gpio PX1 */
|
|
|
|
clocks = <&tegra_car 112>, <&tegra_car 113>, <&tegra_car 93>;
|
|
clock-names = "pll_a", "pll_a_out0", "mclk";
|
|
};
|
|
|