Documentation/devicetree/bindings/sound/pcm512x.txt

   1 PCM512x audio CODECs
   2
   3 These devices support both I2C and SPI (configured with pin strapping
   4 on the board).
   5
   6 Required properties:
   7
   8   - compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141" or
   9                  "ti,pcm5142"
  10
  11   - reg : the I2C address of the device for I2C, the chip select
  12           number for SPI.
  13
  14   - AVDD-supply, DVDD-supply, and CPVDD-supply : power supplies for the
  15     device, as covered in bindings/regulator/regulator.txt
  16
  17 Optional properties:
  18
  19   - clocks : A clock specifier for the clock connected as SCLK.  If this
  20     is absent the device will be configured to clock from BCLK.  If pll-in
  21     and pll-out are specified in addition to a clock, the device is
  22     configured to accept clock input on a specified gpio pin.
  23
  24   - pll-in, pll-out : gpio pins used to connect the pll using <1>
  25     through <6>.  The device will be configured for clock input on the
  26     given pll-in pin and PLL output on the given pll-out pin.  An
  27     external connection from the pll-out pin to the SCLK pin is assumed.
  28
  29 Examples:
  30
  31         pcm5122: pcm5122@4c {
  32                 compatible = "ti,pcm5122";
  33                 reg = <0x4c>;
  34
  35                 AVDD-supply = <&reg_3v3_analog>;
  36                 DVDD-supply = <&reg_1v8>;
  37                 CPVDD-supply = <&reg_3v3>;
  38         };
  39
  40
  41         pcm5142: pcm5142@4c {
  42                 compatible = "ti,pcm5142";
  43                 reg = <0x4c>;
  44
  45                 AVDD-supply = <&reg_3v3_analog>;
  46                 DVDD-supply = <&reg_1v8>;
  47                 CPVDD-supply = <&reg_3v3>;
  48
  49                 clocks = <&sck>;
  50                 pll-in = <3>;
  51                 pll-out = <6>;
  52         };