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| author | Lucas Stach <l.stach@pengutronix.de> | 2019-11-18 18:12:06 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-11-18 19:11:47 +0300 |
| commit | e48fdb53bd1fa50796b5a050e6e31fde3891a2c8 (patch) | |
| tree | 18f52d2f93a59ae7db5ac80a42ad9161f8482955 /Documentation/devicetree | |
| parent | 653c28afa76b45c570370c3c3a89975c68c5fc8e (diff) | |
| download | linux-e48fdb53bd1fa50796b5a050e6e31fde3891a2c8.tar.xz | |
ASoC: tlv320aic31xx: configure output common-mode voltage
The tlv320aic31xx devices allow to adjust the output common-mode voltage
for best analog performance. The datasheet states that the common mode
voltage should be set to be <= AVDD/2.
This changes allows to configure the output common-mode voltage via a DT
property. If the property is absent the voltage is automatically chosen
as the highest voltage below/equal to AVDD/2.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20191118151207.28576-1-l.stach@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/tlv320aic31xx.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt index 5b3c33bb99e5..e372303697dc 100644 --- a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt +++ b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt @@ -29,6 +29,11 @@ Optional properties: 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD If this node is not mentioned or if the value is unknown, then micbias is set to 2.0V. +- ai31xx-ocmv - output common-mode voltage setting + 0 - 1.35V, + 1 - 1.5V, + 2 - 1.65V, + 3 - 1.8V Deprecated properties: |