Messages in this thread | | | Date | Mon, 23 Sep 2013 15:41:26 -0600 | From | Stephen Warren <> | Subject | Re: [PATCH 4/5] mfd: arizona: Add micdet ranges and polarity device tree bindings |
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On 09/23/2013 12:30 PM, Charles Keepax wrote: > Add device tree bindings for the pdata that configures the microphone > button detection and microphone detection polarity configurations.
> diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt b/Documentation/devicetree/bindings/mfd/arizona.txt
> + - wlf,micd-ranges : Microphone detection level and key configuration, this > + field can be of variable length but should always be a multiple of 2 cells > + long, each two cell group represents one button configuration > + The first cell is the maximum impedance for this button in ohms > + The second cell the key that should be reported to the input layer
Is there a limit on how many ranges can be specified? Are the impedance values arbitrary, or limited to some pre-determined set of values supported by HW?
> + - wlf,micd-configs : Headset polarity configurations, the field can be of > + variable length but should always be a multiple of 3 cells long, each two
s/two/three/
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