linux-kernel - Re: [alsa-devel] [PATCH v1 5/6] ASoC: codecs: msm8916-wcd-analog: add MBHC support

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Message-ID: <a8b3c03b-e08f-f876-08ef-40f8aa7eaad4@linaro.org>
Date:   Thu, 27 Jul 2017 11:03:36 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Damien Riegel <damien.riegel@...oirfairelinux.com>,
        Srinivas Kandagatla 
        <srinivas.kandagatlaatlinaro.org@...kotop.localdomain>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [alsa-devel] [PATCH v1 5/6] ASoC: codecs: msm8916-wcd-analog: add
 MBHC support


Thanks Damien, for testing the patchset.

On 26/07/17 20:35, Damien Riegel wrote:
> [Sorry for breaking the thread, but I don't have the initial message to
> reply to.]
> 
> I tried your patchset and faced some issues regarding removal detection:
> the driver detects headphone and microphone removal as soon as I press a
> button on the headset.
> 


I will try to reproduce this on my end and hopefully fix it in next version.


--srini
> evtest logs:
> 
> 	[Headset insertion]
> Event: time 10207.841157, type 1 (EV_KEY), code 226 (KEY_MEDIA), value 1
> Event: time 10207.841157, -------------- SYN_REPORT ------------
> Event: time 10208.039105, type 1 (EV_KEY), code 226 (KEY_MEDIA), value 0
> Event: time 10208.039105, -------------- SYN_REPORT ------------
> Event: time 10208.075519, type 5 (EV_SW), code 2 (SW_HEADPHONE_INSERT), value 1
> Event: time 10208.075519, type 5 (EV_SW), code 4 (SW_MICROPHONE_INSERT), value 1
> Event: time 10208.075519, -------------- SYN_REPORT ------------
> 	[Pressing Volume up Button]
> Event: time 10210.590403, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 1
> Event: time 10210.590403, type 5 (EV_SW), code 2 (SW_HEADPHONE_INSERT), value 0
> Event: time 10210.590403, type 5 (EV_SW), code 4 (SW_MICROPHONE_INSERT), value 0
> Event: time 10210.590403, -------------- SYN_REPORT ------------
> Event: time 10210.719560, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 0
> Event: time 10210.719560, -------------- SYN_REPORT ------------
> 	[Unplugging]
> Event: time 10221.926156, type 1 (EV_KEY), code 226 (KEY_MEDIA), value 1
> Event: time 10221.926156, -------------- SYN_REPORT ------------
> Event: time 10222.026466, type 1 (EV_KEY), code 226 (KEY_MEDIA), value 0
> Event: time 10222.026466, -------------- SYN_REPORT ------------
> 
> 
> Also, the KEY_MEDIA is wrongly reported but I don't see that every time,
> I think it depends on how fast I plug in the headset. Anyway, I think
> that can easily be filtered out by testing the presence of the
> microphone.
> 
> 
> Regards,
>