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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2019-11-13 15:47:33 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-11-18 16:09:13 +0300 |
| commit | cdacc761dae1cbd6475ac79f0e732f2b1ca021e0 (patch) | |
| tree | a8ffccb765de310bb16e00bbfc50a84d410f8d8b /Documentation/devicetree/bindings | |
| parent | b1176bbb70866f24099cd2720283c7219fb4a81c (diff) | |
| download | linux-cdacc761dae1cbd6475ac79f0e732f2b1ca021e0.tar.xz | |
ASoC: pcm3168a: Document optional RST gpio
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>
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/ti,pcm3168a.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/ti,pcm3168a.txt b/Documentation/devicetree/bindings/sound/ti,pcm3168a.txt index 5d9cb84c661d..f30aebc7603a 100644 --- a/Documentation/devicetree/bindings/sound/ti,pcm3168a.txt +++ b/Documentation/devicetree/bindings/sound/ti,pcm3168a.txt @@ -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>; |