ASoC: pcm3168a: Document optional RST gpio (cdacc761) · Commits · 戴 / test

On boards where the RST line is not pulled up, but it is connected to a GPIO line this property must present in order to be able to enable the codec. Signed-off-by:

Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20191113124734.27984-2-peter.ujfalusi@ti.com Signed-off-by:

Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/ti,pcm3168a.txt

+7 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,12 @@ Required properties:

		For required properties on SPI/I2C, consult SPI/I2C device tree documentation

		Optional properties:

		- rst-gpios : Optional RST gpio line for the codec
		RST = low: device power-down
		RST = high: device is enabled

		Examples:

		i2c0: i2c0@0 {
		@@ -34,6 +40,7 @@ i2c0: i2c0@0 {
		pcm3168a: audio-codec@44 {
		compatible = "ti,pcm3168a";
		reg = <0x44>;
		rst-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
		clocks = <&clk_core CLK_AUDIO>;
		clock-names = "scki";
		VDD1-supply = <&supply3v3>;

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