diff options
| author | Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com> | 2014-10-14 08:43:12 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-10-20 12:22:33 +0100 |
| commit | 8735779774b8bbe14456c9e6ba4525eefc67a228 (patch) | |
| tree | a011c1f117e4193cece5654d3b4d3ea2bd7349e7 /Documentation/devicetree/bindings/sound | |
| parent | bd0593f5f6add279257334b4a76aecd3ee8d31dc (diff) | |
ASoC: sgtl5000: Add MicBias voltage support
Some systems may require to specify a bias different than default (1.25V).
This adds a property in sgtl5000 codec.
The property is specified in milli-volts so that it is coherent with datasheet.
Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/sgtl5000.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/sgtl5000.txt b/Documentation/devicetree/bindings/sound/sgtl5000.txt index d6ec92707d81..1aab40339617 100644 --- a/Documentation/devicetree/bindings/sound/sgtl5000.txt +++ b/Documentation/devicetree/bindings/sound/sgtl5000.txt @@ -13,6 +13,10 @@ Required properties: If this node is not mentioned or if the value is unknown, then micbias resistor is set to 4K. +- micbias-voltage-m-volts : the bias voltage to be used in mVolts + The voltage can take values from 1.25V to 3V by 250mV steps + If this node is not mentionned or the value is unknown, then + the value is set to 1.25V. Example: @@ -20,5 +24,6 @@ codec: sgtl5000@0a { compatible = "fsl,sgtl5000"; reg = <0x0a>; clocks = <&clks 150>; - sgtl5000-micbias-resistor = <1>; + micbias-resistor-k-ohms = <2>; + micbias-voltage-m-volts = <2250>; }; |