On Tue, Sep 04, 2018 at 11:24:57AM +0100, Srinivas Kandagatla wrote: > This patch add new bindings required to support MBHC > (Multi Button Headset Control) block in the codec. > This block is used for jack insert/removal detection, > headset type detection and 8 button press/release events. > > All these properties are very much specific to board. > > Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> > --- > .../bindings/sound/qcom,wcd9335.txt | 20 +++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd9335.txt b/Documentation/devicetree/bindings/sound/qcom,wcd9335.txt > index 5d6ea66a863f..4d56c3ca9fa8 100644 > --- a/Documentation/devicetree/bindings/sound/qcom,wcd9335.txt > +++ b/Documentation/devicetree/bindings/sound/qcom,wcd9335.txt > @@ -55,6 +55,26 @@ Required properties with SLIMbus Interface: > Value type: <string> > Definition: Must contain "mclk", "mclk2" and "slimbus" strings. > > +- qcom,mbhc-vthreshold: Needs unit suffix. > + Usage: Optional, only required if headset button support required. > + Value type: <u32 array> > + Definition: Must contain an array of 8 threshold voltages in mV for > + 8 buttons detection on headset. > + > +- qcom,hphl-jack-type-normally-open: > + Usage: Optional, only required if headset button support required. It's not required if the pin is NC, right? > + Value type: <boolean> > + Definition: present if hphl pin on jack is a NO (Normally Open). > + If not specified, then its assumed that hphl pin on jack > + is NC (Normally Closed). Is the not specified case the more common case? If not, it should be. > + > +- qcom,gnd-jack-type-normally-open: > + Usage: Optional, only required if headset button support required. Same here. > + Value type: <boolean> > + Definition: present if gnd pin on jack is NO (Normally Open). > + If not specified, then its assumed that gnd pin on > + jack is NC (Normally Closed). > + > - vdd-buck-supply: > Usage: required > Value type: <phandle> > -- > 2.18.0 > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
