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Charles Keepaxd9b27d52019-03-20 17:37:31 +00001Cirrus Logic Lochnagar Audio Development Board
2
3Lochnagar is an evaluation and development board for Cirrus Logic
4Smart CODEC and Amp devices. It allows the connection of most Cirrus
5Logic devices on mini-cards, as well as allowing connection of
6various application processor systems to provide a full evaluation
7platform. Audio system topology, clocking and power can all be
8controlled through the Lochnagar, allowing the device under test
9to be used in a variety of possible use cases.
10
11This binding document describes the binding for the audio portion
12of the driver.
13
14This binding must be part of the Lochnagar MFD binding:
15 [4] ../mfd/cirrus,lochnagar.txt
16
17Required properties:
18
19 - compatible : One of the following strings:
20 "cirrus,lochnagar2-soundcard"
21
22 - #sound-dai-cells : Must be set to 1.
23
24 - clocks : Contains an entry for each entry in clock-names.
25 - clock-names : Must include the following clocks:
26 "mclk" Master clock source for the sound card, should normally
27 be set to LOCHNAGAR_SOUNDCARD_MCLK provided by the Lochnagar
28 clock driver.
29
30Example:
31
32lochnagar-sc {
33 compatible = "cirrus,lochnagar2-soundcard";
34
35 #sound-dai-cells = <1>;
36
37 clocks = <&lochnagar_clk LOCHNAGAR_SOUNDCARD_MCLK>;
38 clock-names = "mclk";
39};