[deliverable/linux.git] / Documentation / devicetree / bindings / sound / pcm512x.txt

PCM512x audio CODECs

These devices support both I2C and SPI (configured with pin strapping
on the board).

Required properties:

  - compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141" or
                 "ti,pcm5142"

  - reg : the I2C address of the device for I2C, the chip select
          number for SPI.

  - AVDD-supply, DVDD-supply, and CPVDD-supply : power supplies for the
    device, as covered in bindings/regulator/regulator.txt

Optional properties:

  - clocks : A clock specifier for the clock connected as SCLK.  If this
    is absent the device will be configured to clock from BCLK.  If pll-in
    and pll-out are specified in addition to a clock, the device is
    configured to accept clock input on a specified gpio pin.

  - pll-in, pll-out : gpio pins used to connect the pll using <1>
    through <6>.  The device will be configured for clock input on the
    given pll-in pin and PLL output on the given pll-out pin.  An
    external connection from the pll-out pin to the SCLK pin is assumed.

Examples:

	pcm5122: pcm5122@4c {
		compatible = "ti,pcm5122";
		reg = <0x4c>;

		AVDD-supply = <&reg_3v3_analog>;
		DVDD-supply = <&reg_1v8>;
		CPVDD-supply = <&reg_3v3>;
	};


	pcm5142: pcm5142@4c {
		compatible = "ti,pcm5142";
		reg = <0x4c>;

		AVDD-supply = <&reg_3v3_analog>;
		DVDD-supply = <&reg_1v8>;
		CPVDD-supply = <&reg_3v3>;

		clocks = <&sck>;
		pll-in = <3>;
		pll-out = <6>;
	};
Commit	Line	Data
5a3af129 MB	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
ba5295e5 PR	8	- compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141" or
ba5295e5 PR	9	"ti,pcm5142"
5a3af129 MB	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
f086ba9d PR	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.
5a3af129	23
f086ba9d PR	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:
5a3af129 MB	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	};
f086ba9d PR	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	};