linux-kernel - Re: [RFC v1 PATCH 5/6] input: pmic8058-othc: Add support for PM8058 based OTHC

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Date:	Wed, 01 Dec 2010 11:04:57 +0530
From:	Anirudh Ghayal <aghayal@...eaurora.org>
To:	Trilok Soni <tsoni@...eaurora.org>
CC:	"Datta, Shubhrajyoti" <shubhrajyoti@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [RFC v1 PATCH 5/6] input: pmic8058-othc: Add support for PM8058
 based OTHC

Hi Dimitry,

Please me know your comments this patch.

Thank you,
Anirudh

On 11/16/2010 12:06 PM, Trilok Soni wrote:
>
> Hi Shubhrajyoti,
>
> On 11/16/2010 11:06 AM, Datta, Shubhrajyoti wrote:
>> Hi Anirudh,
>>
>>> -----Original Message-----
>>> From: linux-input-owner@...r.kernel.org [mailto:linux-input-
>>> owner@...r.kernel.org] On Behalf Of Trilok Soni
>>> Sent: Wednesday, November 10, 2010 6:18 PM
>>> To: linux-kernel@...r.kernel.org
>>> Cc: linux-input@...r.kernel.org; rtc-linux@...glegroups.com; linux-arm-
>>> msm@...r.kernel.org; Anirudh Ghayal; Dmitry Torokhov
>>> Subject: [RFC v1 PATCH 5/6] input: pmic8058-othc: Add support for PM8058
>>> based OTHC
>>>
>>> From: Anirudh Ghayal<aghayal@...eaurora.org>
>>>
>>> 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.
>> Could  you help with the datasheet link if it is free.
>>
>
> datasheets are not available for open access.
>
>>> +
>>> +static int
>> If this is called only at init it can also be a devinit ?
>
> Ok.
>
>>> +     if (rc) {
>>> +             dev_dbg(&pd->dev, "Headset inserted during boot up!\n");
>>> +             dd->othc_ir_state = true;
>>> +             input_report_switch(dd->othc_ipd, SW_HEADPHONE_INSERT, 1);
>>> +             input_sync(dd->othc_ipd);
>>> +     }
>> Not a comment. However I did not understand why the status at boot is required here.
>
> We need to report right status when the system boots up with headset inserted.
>
>>> +
>>> +fail_sw_irq:
>>> +     free_irq(dd->othc_irq_ir, dd);
>>> +fail_ir_irq:
>>> +     input_unregister_device(ipd);
>> Unregister and then falling back to free may not be what you intended.
>>
>
> Nope. Please see we are making othc_ipd = NULL, so everything should be fine.
>
> Thanks for the review comments.
>


-- 
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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