diff options
| author | Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com> | 2014-10-14 08:43:11 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-10-20 13:22:33 +0200 |
| commit | bd0593f5f6add279257334b4a76aecd3ee8d31dc (patch) | |
| tree | 1bad69bc4a955dd74dcfb9c38cb069954bfdf20b /Documentation | |
| parent | ASoC: sgtl5000: Cleanup the comments (diff) | |
| download | linux-bd0593f5f6add279257334b4a76aecd3ee8d31dc.tar.xz linux-bd0593f5f6add279257334b4a76aecd3ee8d31dc.zip | |
ASoC: sgtl5000: Add MicBias resistor support in DT
Some systems may require a different resistor than the default one (4K).
This adds a property in sgtl5000 codec.
It keeps the default of 4K when nothing is specified so it does not break
existing code.
Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/sgtl5000.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/sgtl5000.txt b/Documentation/devicetree/bindings/sound/sgtl5000.txt index 955df60a118c..d6ec92707d81 100644 --- a/Documentation/devicetree/bindings/sound/sgtl5000.txt +++ b/Documentation/devicetree/bindings/sound/sgtl5000.txt @@ -7,10 +7,18 @@ Required properties: - clocks : the clock provider of SYS_MCLK +- micbias-resistor-k-ohms : the bias resistor to be used in kOmhs + The resistor can take values of 2k, 4k or 8k. + If set to 0 it will be off. + If this node is not mentioned or if the value is unknown, then + micbias resistor is set to 4K. + + Example: codec: sgtl5000@0a { compatible = "fsl,sgtl5000"; reg = <0x0a>; clocks = <&clks 150>; + sgtl5000-micbias-resistor = <1>; }; |