linux-kernel - Re: [PATCH v2 0/2] Make headphone work on Huawei Matebook D15

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Date:   Tue, 5 Apr 2022 15:56:21 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/2] Make headphone work on Huawei Matebook D15

Hi,

On 4/5/22 15:48, Mauro Carvalho Chehab wrote:
> Em Tue, 5 Apr 2022 11:00:44 +0200
> Hans de Goede <hdegoede@...hat.com> escreveu:
> 
>> Hi,
>>
>> On 4/5/22 10:44, Mauro Carvalho Chehab wrote:
>>> At Huawei Matebook D15 two different GPIOs are used to control the output:
>>> 	- gpio0 controls the speaker output;
>>> 	- gpio1 controls the headphone output.
>>>
>>> Changing both at the same time cause spurious events that are mis-interpreted
>>> as input events, causing troubles on apps. So, a delay is needed before turning
>>> on such gpios.
>>>
>>> With this patch, plugging a headphone causes a jack event to trigger the speaker
>>> supply, powering down the speaker and powering up the headphone output.
>>> Removing the headphone also triggers the power supply, powering up the speaker
>>> and powering down the headphone.
>>>
>>> Mauro Carvalho Chehab (2):
>>>   ASoC: Intel: sof_es8336: support a separate gpio to control headphone
>>>   ASoC: Intel: sof_es8336: Huawei Matebook D15 uses a headphone gpio  
>>
>> There is something weird with the patches here, at least for me in Thunderbird
>> both patches show up as nameless attachments to emails with empty bodies.
> 
> Weird... I tested here on Thunderbird (Fedora 35), reading it from the ML
> and they opened ok here.

Yes I checked lore.kernel.org and they look fine there, so as you
said: weird.

> There *is* an issue on such patches though: they ended using my past
> e-mail :-) 
> 
> I'll re-send those with your ack using the right SoB/From
> mchehab@...nel.org.

And in the resend they look fine in my Thunderbird too.

Regards,

Hans