linux-kernel - Re: [rtc-linux] [RFC v2 PATCH 5/7] input: pmic8058-othc: Add support for PM8058 based OTHC

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Date:	Wed, 02 Feb 2011 13:21:50 +0530
From:	Trilok Soni <tsoni@...eaurora.org>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	Anirudh Ghayal <aghayal@...eaurora.org>,
	Shubhrajyoti Datta <shubhrajyoti@...com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [rtc-linux] [RFC v2 PATCH 5/7] input: pmic8058-othc: Add	support
 for PM8058 based OTHC

Hi Mark,

On 2/1/2011 8:03 PM, Mark Brown wrote:
> On Tue, Feb 01, 2011 at 07:17:41PM +0530, Anirudh Ghayal wrote:
>> One-touch headset controller is a hardware module in Qualcomm's PMIC8058.
>> It supports headset insert/remove and switch press/release detection events
>> over 3 MIC BIAS lines. The MIC BIAS lines can be configured to support
>> headset detection or act as regular BIAS lines.
> 
> This should probably be integrated with ASoC for management of the
> biases if nothing else, though it'd also allow other stuff.  ALSA has
> support for creating input devices from jacks already.
> 
>> +	input_set_capability(ipd, EV_SW, SW_HEADPHONE_INSERT);
>> +	input_set_capability(ipd, EV_KEY, KEY_MEDIA);
> 
> The ALSA (well, ASoC) stuff would also allow the input device to be
> merged with that for other detection methods so if you've got a headset
> jack capable of detecting other things (eg, mechanical insertion or
> separate mic and headphone detection).

Thanks for the review. We will analyze on how much we should be able to move
from this OTHC driver to ALSA jack detection.

---Trilok Soni

-- 
Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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